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Mook's Skylon @125 meters
Not that Skylon (SSTO hybrid jet/rocket plane) is ever going to
achieve those set goals as based upon their existing design, but at least it's another step in the right direction. All Skylon needs is either greater fuel energy density or simply more volume of it without significantly increasing their inert mass. Perhaps a 125 meter by 9.6 meter hull with similar wings w/o those bulky and massive engine nacelles, and perhaps a small aerodynamic V tail as coming off a single Sabre engine that's feeding something similar to the J2X offering 130 tonnes of thrust., with otherwise a primary SSME thruster. http://en.wikipedia.org/wiki/SABRE Of course there's always SPACEBUS that could use a good amount of Mook's H2. http://www.bristolspaceplanes.com/pr...spacebus.shtml Next client for Mook's cheap LH2 fuel is the SR-3/Blackstar http://en.wikipedia.org/wiki/Blackstar_(spaceplane) Last but not least is the JP-10 fueled scramjet that kept our SR71 kicking spy-plane butt. http://en.wikipedia.org/wiki/SR-71_Blackbird Worth noting is that rocket thrust as combusted with h2o2 and cyclopropane orbits 140% the payload that h2o2/RP-1 can launch , whereas the SR-71 doesn't even count when those air breathing engines run essentially as a scramjet from mach 2à3.2 would otherwise become so much better off once burning h2o2 and JP-5. Black Horse: http://www.fas.org/spp/military/doco...2020/app-h.htm "Using in flight propellant transfer to reduce the Dv needed to fly to space makes it possible for a fighter-sized aircraft to achieve orbit. The enabling technology to do this is non-cryogenic, non-toxic rocket propulsion based on H2O2 and JP-5." Our old USAF Black Horse proposed operations and badly outdated fuel cost: · Each vehicle flies once per week; 400 total sorties per year · Base/site operations and maintenance are $10M per year · Additional site maintenance per flight is $25,000 · Overhead cost per person is $130,000 per year · Propellant cost is $0.20/lb for JP-5, $0.68/lb for H2O2 · 21,000 pounds of fuel are used per sortie (not including tanker) · 155,000 pounds of the h2o2 oxidizer are used per flight Mook's affordable H2 or LH2 economy is of course technically doable, although little is actually all that new or improved by way of Mook creating such cheap H2, much less of any H2àLH2, and at best it's simply not compact enough for accommodating most forms of private transportation on any par with liquid fossil/synfuels and atmosphere, nor without a risk of creating its own fair share of NOx when having to consume so much of our mostly N2 atmosphere. Of course the Sabre reaction engine manages to exclude most of the N2, essentially processing LOx while on the fly. Best Books on Hydrogen Future Possibilities: whereas this topic holds some of Mook's better arguments against the established big-energy gauntlet of perpetual denials and naysayism imposed upon any such energy alternative notions other than consuming fossil fuels and creating as much CO2 and NOx as possible. http://groups.google.com/group/sci.e...2257c46?hl=en& Affordable commercial space travel may be at best decades away, and of the Mook H2 helicopter may never fly in commercial service unless incorporating one of those Sabre LOx producing engines, but perhaps the suborbital capable SST/Concorde/Skylon might actually stand a chance if there's ever going to be such a cheap supply of LH2 along with a surplus of other clean Mook energy for the makings of LOx. Syupposely the pair of Sabre hybrid airbreathing/rocket engines are offering one viable method of extracting LOx on the fly(sort of speak). If combined along with Mook's cheap LH2 is where this form of LOx feed via an airbreathing engine could become the best hybrid thrusting game in town of using those J2X thrusters. All that's needed is an extremely large amount of fuel and oxidizer volume in order to accommodate 100 passengers plus 9 crew. A much larger Skylon of 125 meters by 9.6 meter primary composite shell is also going to represent at least 6400 kg worth of buoyancy once most of those LH2 tanks are empty. Skylon w/reaction thrust via two Sabre hybrid airbreathing/rocket engines. http://www.astronautix.com/lvs/skylon.htm "These engines employed liquid hydrogen fuel with atmospheric air up to Mach 5.5 and on-board liquid oxygen beyond that to orbital velocities. At take-off the vehicle carried approximately 66 tonnes of liquid hydrogen and approximately 150 tonnes of liquid oxygen for the ascent." http://www.reactionengines.co.uk/skylon_vehicle.html Length: 82m Fuselage Diameter: 6.25m Wingspan: 25m Unladen Mass: 41,000kg Fuel Mass: 220,000kg Maximum Payload Mass: 12,000kg (I'd give this 6,000 kg or roughly half the Concorde payload) "The thrust during airbreathing ascent was variable but around 200 tonnes. During rocket ascent this rose to 300 tonnes but was then throttled down towards the end of the ascent to limit the longitudinal acceleration to 3.0g." Two of the Saturn J2S engines are worth roughly 240 tonnes of thrust. Two of the new and improved 1650 kg J2X engines should accomplish 260 tonnes of thrust (roughly half of the SSME thrust but also less than 2/3 the inert mass of one SSME). Apparently it takes at least 5 tonnes of LH2 just for getting Skylon down the tarmac, to accelerate and fly itself off the deck as headed towards the wild black yonder, and by way of burning off that cache of Mook's cheap hydrogen along with consuming vast amounts of atmosphere is unavoidably leaving a lethal trail of NOx most all the way (NOx being worse than CO2 for our environment because, plants and most other life on Earth simply can not process NOx nor tolerate more than a few ppm, of which can become another environmental fiasco since nothing much breaks NOx down). In other words, it takes a great deal of applied energy in order to create LOx while on the super sonic fly, and if that energy is primarily via H2 and atmosphere combustion is simply never going to avoid creating NOx unless the Sabre engine itself that's making its own LOx manages to divert the greater portion of N2 prior to combustion (technically doable but not commercially airworthy viable as of the existing technology). Supposedly at supersonic or scramjet velocity, along with cold enough air, is when the Saber engine manages to create most of its own LOx in excess of its own needs, and thereby minimizing the risk of directly creating NOx within it's primary rocket thrust combustion, although indirectly the exhaust will have to interact with the surrounding atmosphere and as such it should still create some NOx no matters what unless the exhaust is moderated with good old h2o/steam, so as to pull it's temperature down to below them point of creating NOx.. In other words, burning of plan old water or perhaps h2o2 as an afterburner sort of notion might actually do the trick, making Mook's Skylon a tri- propellant solution. Therefore, instead of a pair of complex Sabre hybrid engines (including their Nacelle, Inlet, Bypass) at 13,200 kg, whereas one 6,600 kg SSME: offers the Mook suborbital or even orbital LH2 Concorde/ Skylon on 1xSSME or 2xJ2X, as offering nearly twice the initial Skylon thrust at half the inert mass without having those bulky engine nacelle drag coefficients, by which should actually work a whole better than Skylon with those complex Sabre reaction thrusters, especially if we're down to using the one compact SSME for accomplishing that ascent thrust (@400,000+ lbs and 500,000+ lb at suborbital or LEO altitude). Engine mass: 6597 kg. Manufacturer Name: RS-24. (SSME) Designer: Rocketdyne. Developed: 1972. Propellants: LOx/LH2 Thrust(vacuum): 512,136 lbf (232,301 kgf). 104.5% SSME fuel follows: LOx 424 kg/s, LH2 70.3 kg/s As another point of commercial reference is the fully terrestrial SST Concorde http://www.concordesst.com/techspec.html SST Concorde Rolls-Royce Olympus Engine thrust of 38,050 lb (x4), provides10,000 lb each (40,000 lbs) at supersonic cruising for accommodating 100 passengers +9 crew. Ideal fuel burn @47 lbs/mile and 1250 mph = 58,750 lbs/hr (26,649 kg/ hr excluding atmosphere tonnage) Minimum fuel consumption at 7.4 kg/s. (fuel load: 95,680 kg = 12,930 sec or 3.6 hours [maximum] not including anything such as takeoff, getting to their cruising altitude, of landing or tarmac standby w/ auxiliary APU, as in allowing for nothing but just the best possible cruise mode), with limited fuel reserves should allow for a maximum takeoff to landing of 3.5 hours flight time, possibly 3.75 hrs if having spent zero tarmac standby time and then mostly subsonic gliding in on near empty from 60,000' for accomplishing their minimum fuel consumption mode of a twin-engine landing, thereby leaving just barely enough tarmacàgate maneuvering fuel unless having headwinds to deal with, in which case their supposedly fuel efficient per passenger mile SST comes in shuttle like dead-stick(sort of speak) and it gets tractor towed to the gate. Instead of our continually making lots of spendy CO2 and NOx via fossil or synfuel and having to consume our badly polluted atmosphere of mostly N2, whereas Mook's Skylon alternative offers us an LH2 method on behalf of pushing such an SST a whole lot faster and further as simply a better thrust application for the energy demanding task, as well as best off for our badly failing environment. Of course this SSME powered SST or Skylon needs to be at least four times the aerodynamic volume of the existing Concorde, and 90~95% of that volume being of its fuel and related infrastructure, as well as no matters what our lord all-knowing Mook never agrees with anyone, pretty much insuring that nothing of any clean energy related consumer merit will ever come of anything associated with the all-or-nothing Mook mindset of his H2 global economy, even though I fully agree with the makings of such liquid fuel from his vast amounts of renewable solar energy is technically doable and should become better off in most every way for our badly failing environment. One more note of a well proven LH2/LOX fly-by-rocket is our space shuttle: Shuttle GLOW Mass (incl. ET and SRBs): 2,029,203 kg (4,474,574 lb) Shuttle 3XSSME Thrust: 1,181,400 lbf combined total, sea level liftoff (5.25 MN) · Shuttle empty weight: 151,205 lb (68,585 kg) · Gross Liftoff Weight: 240,000 lb (109,000 kg) Once again; those main engines of three Rocketdyne Block IIA SSMEs, each with a sea level thrust of 393,800 lbf (174,089 kgf) that only get better results at altitude, seems like such a waste of extremely good and proven as reliable technology, whereas to never apply such on behalf any commercial transport seems worse than pathetic of us. Mook's version of a suborbital SST for his rich and powerful friends will likely need to incorporate at least one such SSME instead of those complex hybrid air breathing rocket engines, whereas Mook's Skylon would likely have at least one such conventional subsonic air breathing engine as his tarmac APU, landing thrust assist and surface maneuvering engine. Most of the extended and expanded composite aerodynamic frame will have to be capable of safely storing vast amounts of his LH2, plus a sufficient cache of LOx, or possibly that of a hauling along a supersonic Sabre rated APU for the task of making our mostly N2 atmosphere into LOx. Of course, most all of this spendier than Skylon R&D and on behalf of creating his initial fleet will have to be paid at least indirectly with public loot, especially since Mook's claim that his solar made LH2 is going to become so vast and gosh darn dirt cheap that his profits will not likely ever become sufficient to pay for much of anything (poor Mook probably couldn't afford a ticket onboard his own suborbital SST, much less of any commercial LEO transport). I'm not nearly as all-knowing or as pro big-energy and forever in favor of bigger government, nor as brown-nose qualified as lord Mook, but I'd have to rethink that perhaps China is already doing us one better with their version of CATS(cheap access to space), plus showing us their good intentions of processing all sorts of nifty and valuable stuff (including 3He) out of our extremely nearby moon seems to represent the best kind of an advanced technology applied future, of where the vast bulk of such imported energy is going to happen in spite of whatever the terrestrial limited likes of Mook or that of our NASA thinks is best. Unlike the usual Usenet gauntlet of all-knowing naysayers and deniers, I have never excluded the makings and use of hydrogen from clean and renewable energy, though having pointed out that a liquid form of H2 and O2 as formulated in h2o2(hydrogen peroxide) offers another good deal of stored energy density without some of the LH2+atmosphere or LOx drawbacks, and h2o2+synfuel or even along with plain old fossil fuel offers us minimal CO2 and essentially a zero NOx end result (even the cooler thrust/exhaust is less likely to create atmospheric reaction NOx) Once having the energy efficient and least NOx producing Mook Skylon is also when we can start thinking along the lines of accomplishing those spendy and somewhat time consuming to/from Venus expeditions in style. With a pair of fully reusable LRBs should more than get this spacecraft on its way with fuel and payload to spare, made even better if having the Chinese LSE-CM/ISS as offering the most efficient exit away from Earth's gravity. Perhaps these Usenet MI5/CIA spooks and moles need to rethink upon their Third Reich infowar tactics of having to continually spew such infomercial crapolla, especially since not all the rest of us village idiots are nearly as snookered or as dumbfounded past the point of no return as they'd like to think. Lord only knows if spook Mook might even have to get a for-real job and pay taxes like the rest of us, and learn to speak fluent Mandarin Chinese. - Brad Guth |
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Mook's Skylon @125 meters
Apparently Mook's Skylon isn't going to fly, not even if given free
LH2, that is unless refueled (LH2 and LOx) in flight prior to going for whatever LEO. That's almost as good as SSTO, isn't it? Too bad the greater energy density of h2o2 + synfuel can't ever get utilized. Perhaps h2o2 is strictly a Muslim thing, therefore entirely taboo for anything used by these pretend atheists. - Brad Guth BradGuth wrote: Not that Skylon (SSTO hybrid jet/rocket plane) is ever going to achieve those set goals as based upon their existing design, but at least it's another step in the right direction. All Skylon needs is either greater fuel energy density or simply more volume of it without significantly increasing their inert mass. Perhaps a 125 meter by 9.6 meter hull with similar wings w/o those bulky and massive engine nacelles, and perhaps a small aerodynamic V tail as coming off a single Sabre engine that's feeding something similar to the J2X offering 130 tonnes of thrust., with otherwise a primary SSME thruster. http://en.wikipedia.org/wiki/SABRE Of course there's always SPACEBUS that could use a good amount of Mook's H2. http://www.bristolspaceplanes.com/pr...spacebus.shtml Next client for Mook's cheap LH2 fuel is the SR-3/Blackstar http://en.wikipedia.org/wiki/Blackstar_(spaceplane) Last but not least is the JP-10 fueled scramjet that kept our SR71 kicking spy-plane butt. http://en.wikipedia.org/wiki/SR-71_Blackbird Worth noting is that rocket thrust as combusted with h2o2 and cyclopropane orbits 140% the payload that h2o2/RP-1 can launch , whereas the SR-71 doesn't even count when those air breathing engines run essentially as a scramjet from mach 2�3.2 would otherwise become so much better off once burning h2o2 and JP-5. Black Horse: http://www.fas.org/spp/military/doco...2020/app-h.htm "Using in flight propellant transfer to reduce the Dv needed to fly to space makes it possible for a fighter-sized aircraft to achieve orbit. The enabling technology to do this is non-cryogenic, non-toxic rocket propulsion based on H2O2 and JP-5." Our old USAF Black Horse proposed operations and badly outdated fuel cost: � Each vehicle flies once per week; 400 total sorties per year � Base/site operations and maintenance are $10M per year � Additional site maintenance per flight is $25,000 � Overhead cost per person is $130,000 per year � Propellant cost is $0.20/lb for JP-5, $0.68/lb for H2O2 � 21,000 pounds of fuel are used per sortie (not including tanker) � 155,000 pounds of the h2o2 oxidizer are used per flight Mook's affordable H2 or LH2 economy is of course technically doable, although little is actually all that new or improved by way of Mook creating such cheap H2, much less of any H2�LH2, and at best it's simply not compact enough for accommodating most forms of private transportation on any par with liquid fossil/synfuels and atmosphere, nor without a risk of creating its own fair share of NOx when having to consume so much of our mostly N2 atmosphere. Of course the Sabre reaction engine manages to exclude most of the N2, essentially processing LOx while on the fly. Best Books on Hydrogen Future Possibilities: whereas this topic holds some of Mook's better arguments against the established big-energy gauntlet of perpetual denials and naysayism imposed upon any such energy alternative notions other than consuming fossil fuels and creating as much CO2 and NOx as possible. http://groups.google.com/group/sci.e...2257c46?hl=en& Affordable commercial space travel may be at best decades away, and of the Mook H2 helicopter may never fly in commercial service unless incorporating one of those Sabre LOx producing engines, but perhaps the suborbital capable SST/Concorde/Skylon might actually stand a chance if there's ever going to be such a cheap supply of LH2 along with a surplus of other clean Mook energy for the makings of LOx. Syupposely the pair of Sabre hybrid airbreathing/rocket engines are offering one viable method of extracting LOx on the fly(sort of speak). If combined along with Mook's cheap LH2 is where this form of LOx feed via an airbreathing engine could become the best hybrid thrusting game in town of using those J2X thrusters. All that's needed is an extremely large amount of fuel and oxidizer volume in order to accommodate 100 passengers plus 9 crew. A much larger Skylon of 125 meters by 9.6 meter primary composite shell is also going to represent at least 6400 kg worth of buoyancy once most of those LH2 tanks are empty. Skylon w/reaction thrust via two Sabre hybrid airbreathing/rocket engines. http://www.astronautix.com/lvs/skylon.htm "These engines employed liquid hydrogen fuel with atmospheric air up to Mach 5.5 and on-board liquid oxygen beyond that to orbital velocities. At take-off the vehicle carried approximately 66 tonnes of liquid hydrogen and approximately 150 tonnes of liquid oxygen for the ascent." http://www.reactionengines.co.uk/skylon_vehicle.html Length: 82m Fuselage Diameter: 6.25m Wingspan: 25m Unladen Mass: 41,000kg Fuel Mass: 220,000kg Maximum Payload Mass: 12,000kg (I'd give this 6,000 kg or roughly half the Concorde payload) "The thrust during airbreathing ascent was variable but around 200 tonnes. During rocket ascent this rose to 300 tonnes but was then throttled down towards the end of the ascent to limit the longitudinal acceleration to 3.0g." Two of the Saturn J2S engines are worth roughly 240 tonnes of thrust. Two of the new and improved 1650 kg J2X engines should accomplish 260 tonnes of thrust (roughly half of the SSME thrust but also less than 2/3 the inert mass of one SSME). Apparently it takes at least 5 tonnes of LH2 just for getting Skylon down the tarmac, to accelerate and fly itself off the deck as headed towards the wild black yonder, and by way of burning off that cache of Mook's cheap hydrogen along with consuming vast amounts of atmosphere is unavoidably leaving a lethal trail of NOx most all the way (NOx being worse than CO2 for our environment because, plants and most other life on Earth simply can not process NOx nor tolerate more than a few ppm, of which can become another environmental fiasco since nothing much breaks NOx down). In other words, it takes a great deal of applied energy in order to create LOx while on the super sonic fly, and if that energy is primarily via H2 and atmosphere combustion is simply never going to avoid creating NOx unless the Sabre engine itself that's making its own LOx manages to divert the greater portion of N2 prior to combustion (technically doable but not commercially airworthy viable as of the existing technology). Supposedly at supersonic or scramjet velocity, along with cold enough air, is when the Saber engine manages to create most of its own LOx in excess of its own needs, and thereby minimizing the risk of directly creating NOx within it's primary rocket thrust combustion, although indirectly the exhaust will have to interact with the surrounding atmosphere and as such it should still create some NOx no matters what unless the exhaust is moderated with good old h2o/steam, so as to pull it's temperature down to below them point of creating NOx.. In other words, burning of plan old water or perhaps h2o2 as an afterburner sort of notion might actually do the trick, making Mook's Skylon a tri- propellant solution. Therefore, instead of a pair of complex Sabre hybrid engines (including their Nacelle, Inlet, Bypass) at 13,200 kg, whereas one 6,600 kg SSME: offers the Mook suborbital or even orbital LH2 Concorde/ Skylon on 1xSSME or 2xJ2X, as offering nearly twice the initial Skylon thrust at half the inert mass without having those bulky engine nacelle drag coefficients, by which should actually work a whole better than Skylon with those complex Sabre reaction thrusters, especially if we're down to using the one compact SSME for accomplishing that ascent thrust (@400,000+ lbs and 500,000+ lb at suborbital or LEO altitude). Engine mass: 6597 kg. Manufacturer Name: RS-24. (SSME) Designer: Rocketdyne. Developed: 1972. Propellants: LOx/LH2 Thrust(vacuum): 512,136 lbf (232,301 kgf). 104.5% SSME fuel follows: LOx 424 kg/s, LH2 70.3 kg/s As another point of commercial reference is the fully terrestrial SST Concorde http://www.concordesst.com/techspec.html SST Concorde Rolls-Royce Olympus Engine thrust of 38,050 lb (x4), provides10,000 lb each (40,000 lbs) at supersonic cruising for accommodating 100 passengers +9 crew. Ideal fuel burn @47 lbs/mile and 1250 mph = 58,750 lbs/hr (26,649 kg/ hr excluding atmosphere tonnage) Minimum fuel consumption at 7.4 kg/s. (fuel load: 95,680 kg = 12,930 sec or 3.6 hours [maximum] not including anything such as takeoff, getting to their cruising altitude, of landing or tarmac standby w/ auxiliary APU, as in allowing for nothing but just the best possible cruise mode), with limited fuel reserves should allow for a maximum takeoff to landing of 3.5 hours flight time, possibly 3.75 hrs if having spent zero tarmac standby time and then mostly subsonic gliding in on near empty from 60,000' for accomplishing their minimum fuel consumption mode of a twin-engine landing, thereby leaving just barely enough tarmac�gate maneuvering fuel unless having headwinds to deal with, in which case their supposedly fuel efficient per passenger mile SST comes in shuttle like dead-stick(sort of speak) and it gets tractor towed to the gate. Instead of our continually making lots of spendy CO2 and NOx via fossil or synfuel and having to consume our badly polluted atmosphere of mostly N2, whereas Mook's Skylon alternative offers us an LH2 method on behalf of pushing such an SST a whole lot faster and further as simply a better thrust application for the energy demanding task, as well as best off for our badly failing environment. Of course this SSME powered SST or Skylon needs to be at least four times the aerodynamic volume of the existing Concorde, and 90~95% of that volume being of its fuel and related infrastructure, as well as no matters what our lord all-knowing Mook never agrees with anyone, pretty much insuring that nothing of any clean energy related consumer merit will ever come of anything associated with the all-or-nothing Mook mindset of his H2 global economy, even though I fully agree with the makings of such liquid fuel from his vast amounts of renewable solar energy is technically doable and should become better off in most every way for our badly failing environment. One more note of a well proven LH2/LOX fly-by-rocket is our space shuttle: Shuttle GLOW Mass (incl. ET and SRBs): 2,029,203 kg (4,474,574 lb) Shuttle 3XSSME Thrust: 1,181,400 lbf combined total, sea level liftoff (5.25 MN) � Shuttle empty weight: 151,205 lb (68,585 kg) � Gross Liftoff Weight: 240,000 lb (109,000 kg) Once again; those main engines of three Rocketdyne Block IIA SSMEs, each with a sea level thrust of 393,800 lbf (174,089 kgf) that only get better results at altitude, seems like such a waste of extremely good and proven as reliable technology, whereas to never apply such on behalf any commercial transport seems worse than pathetic of us. Mook's version of a suborbital SST for his rich and powerful friends will likely need to incorporate at least one such SSME instead of those complex hybrid air breathing rocket engines, whereas Mook's Skylon would likely have at least one such conventional subsonic air breathing engine as his tarmac APU, landing thrust assist and surface maneuvering engine. Most of the extended and expanded composite aerodynamic frame will have to be capable of safely storing vast amounts of his LH2, plus a sufficient cache of LOx, or possibly that of a hauling along a supersonic Sabre rated APU for the task of making our mostly N2 atmosphere into LOx. Of course, most all of this spendier than Skylon R&D and on behalf of creating his initial fleet will have to be paid at least indirectly with public loot, especially since Mook's claim that his solar made LH2 is going to become so vast and gosh darn dirt cheap that his profits will not likely ever become sufficient to pay for much of anything (poor Mook probably couldn't afford a ticket onboard his own suborbital SST, much less of any commercial LEO transport). I'm not nearly as all-knowing or as pro big-energy and forever in favor of bigger government, nor as brown-nose qualified as lord Mook, but I'd have to rethink that perhaps China is already doing us one better with their version of CATS(cheap access to space), plus showing us their good intentions of processing all sorts of nifty and valuable stuff (including 3He) out of our extremely nearby moon seems to represent the best kind of an advanced technology applied future, of where the vast bulk of such imported energy is going to happen in spite of whatever the terrestrial limited likes of Mook or that of our NASA thinks is best. Unlike the usual Usenet gauntlet of all-knowing naysayers and deniers, I have never excluded the makings and use of hydrogen from clean and renewable energy, though having pointed out that a liquid form of H2 and O2 as formulated in h2o2(hydrogen peroxide) offers another good deal of stored energy density without some of the LH2+atmosphere or LOx drawbacks, and h2o2+synfuel or even along with plain old fossil fuel offers us minimal CO2 and essentially a zero NOx end result (even the cooler thrust/exhaust is less likely to create atmospheric reaction NOx) Once having the energy efficient and least NOx producing Mook Skylon is also when we can start thinking along the lines of accomplishing those spendy and somewhat time consuming to/from Venus expeditions in style. With a pair of fully reusable LRBs should more than get this spacecraft on its way with fuel and payload to spare, made even better if having the Chinese LSE-CM/ISS as offering the most efficient exit away from Earth's gravity. Perhaps these Usenet MI5/CIA spooks and moles need to rethink upon their Third Reich infowar tactics of having to continually spew such infomercial crapolla, especially since not all the rest of us village idiots are nearly as snookered or as dumbfounded past the point of no return as they'd like to think. Lord only knows if spook Mook might even have to get a for-real job and pay taxes like the rest of us, and learn to speak fluent Mandarin Chinese. - Brad Guth |
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Mook's Skylon @125 meters
And to think at the daunting velocity and scope of lord Mook, we'll
get there in just a few centuries, of course all due entirely at public expense and otherwise due to his cheap if not surplus/free LH2 and LOx is why other planets had better watch out, because here we come. Mook's Skylon @125 meters, using his 100% renewable LH2/LOx Not that Skylon (SSTO hybrid jet/rocket plane) is ever going to achieve those set goals as based upon their existing design, but at least it's offering us another bold step in the right direction. All Skylon needs is either to incorporate greater fuel energy density or simply having more volume of fuel without significantly increasing their inert mass. Perhaps a 125 meter by 9.6 meter composite hull with similar wings w/o those bulky and massive engine nacelles, and perhaps using a small aerodynamic V tail as coming off a single rear Sabre engine nacelle that's feeding something similar to the J2X that's offering 130 tonnes of thrust., with otherwise using a primary SSME thruster. http://en.wikipedia.org/wiki/SABRE Of course there's always SPACEBUS that could use a good amount of Mook's cheap LH2. http://www.bristolspaceplanes.com/pr...spacebus.shtml Next client for Mook's cheap LH2 and LOx fuel is the SR-3/Blackstar http://en.wikipedia.org/wiki/Blackstar_(spaceplane) Last but not least is the JP-10 fueled scramjet that kept our SR71 kicking spy-plane butt. http://en.wikipedia.org/wiki/SR-71_Blackbird Worth noting is that rocket thrust as combusted with h2o2 and cyclopropane orbits 140% the payload that h2o2/RP-1 can launch , whereas the SR-71 doesn't even count when those air breathing engines run essentially as a scramjet from mach 2à3.2, unless otherwise becoming so much better off once hauling slush h2o2 and JP-5, not to mention the added payload boost of using cyclopropane. Black Horse: http://www.fas.org/spp/military/doco...2020/app-h.htm "Using in flight propellant transfer to reduce the Dv needed to fly to space makes it possible for a fighter-sized aircraft to achieve orbit. The enabling technology to do this is non-cryogenic, non-toxic rocket propulsion based on H2O2 and JP-5." Our old USAF Black Horse proposed operations and badly outdated fuel cost: · Each vehicle flies once per week; 400 total sorties per year · Base/site operations and maintenance are $10M per year · Additional site maintenance per flight is $25,000 · Overhead cost per person is $130,000 per year · Propellant cost is $0.20/lb for JP-5, $0.68/lb for H2O2 · 21,000 pounds of fuel are used per sortie (not including tanker) · 155,000 pounds of the h2o2 oxidizer are used per flight Mook's affordable H2 or LH2 economy is of course technically doable, although little is actually all that new or improved by way of Mook creating such cheap H2, much less of any H2àLH2 or LOx, and at best it's simply not compact enough for accommodating most forms of private transportation on any par with liquid fossil/synfuels and good old atmosphere, nor without a risk of creating its own fair share of NOx when having to consume so much of our mostly N2 atmosphere. Of course the Sabre reaction engine manages to exclude most of the N2, essentially capable of processing LOx while on the fly. Best Books on Hydrogen Future Possibilities: whereas this topic holds some of Mook's better arguments against the established big-energy gauntlet of perpetual denials and naysayism imposed upon any such energy alternative notions other than consuming fossil fuels and creating as much CO2 and NOx as possible. http://groups.google.com/group/sci.e...2257c46?hl=en& Affordable commercial space travel may be at best decades away, and of the Mook H2 helicopter notion may never fly in commercial service unless also incorporating one of those complex Sabre LOx producing engines, but perhaps the suborbital capable SST/Concorde/Skylon might actually stand a chance in hell if there's ever going to be such a cheap and renewable supply of LH2 along with a surplus of other clean Mook energy for the essential makings of LOx. Supposedly the pair of Sabre hybrid airbreathing/rocket engines are offering one viable method of extracting LOx on the fly(sort of speak). If combined along with Mook's cheap LH2 is where this form of LOx feed via an airbreathing engine could become the best hybrid thrusting game in town of using those J2X thrusters. All that's needed is an extremely large amount of fuel and oxidizer volume in order to accommodate 100 passengers plus 9 crew. This much larger Skylon of 125 meters by 9.6 meter primary aerodynamic composite shell is also going to represent at least 6400 kg worth of buoyancy offset once most of those LH2 tanks are empty. Skylon w/reaction thrust via two Sabre hybrid airbreathing/rocket engines. http://www.astronautix.com/lvs/skylon.htm "These engines employed liquid hydrogen fuel with atmospheric air up to Mach 5.5 and on-board liquid oxygen beyond that to orbital velocities. At take-off the vehicle carried approximately 66 tonnes of liquid hydrogen and approximately 150 tonnes of liquid oxygen for the ascent." http://www.reactionengines.co.uk/skylon_vehicle.html Length: 82m Fuselage Diameter: 6.25m Wingspan: 25m Unladen Mass: 41,000kg Fuel Mass: 220,000kg Maximum Payload Mass: 12,000kg (I'd give this 6,000 kg or roughly half the Concorde payload) "The thrust during airbreathing ascent was variable but around 200 tonnes. During rocket ascent this rose to 300 tonnes but was then throttled down towards the end of the ascent to limit the longitudinal acceleration to 3.0g." Two of the Saturn J2S engines are worth roughly 240 tonnes of thrust. Two of the new and improved 1650 kg J2X engines should accomplish 260 tonnes of thrust (roughly half of the SSME thrust but also less than 2/3 the combined inert mass of one SSME). Apparently it takes at least 5 tonnes of LH2 just for getting Skylon down the tarmac, to accelerate and fly itself off the deck as headed towards the wild black yonder, and by way of burning off that cache of Mook's cheap hydrogen along with consuming vast amounts of atmosphere is unavoidably leaving a lethal trail of NOx most all the way (NOx being much worse than CO2 for our environment because, plants and most other life on Earth simply can not process NOx nor tolerate more than a few ppm, of which can become another environmental fiasco since nothing much breaks NOx down). In other words, it takes a great deal of applied energy in order to create LOx while on the supersonic or hypersonic fly, and if that energy is primarily via H2 and atmosphere combustion is simply never going to avoid creating NOx unless the Sabre engine itself that's making its own LOx manages to divert the greater portion of N2 prior to combustion (technically doable in the lab but not quite commercially airworthy viable as of the existing technology). Supposedly at supersonic or scramjet velocity, along with cold enough air, is when the Saber engine manages to create its own LOx in excess of its needs, and thereby minimizing the risk of directly creating NOx within it's primary rocket thrust combustion process, although indirectly the exhaust will have to interact with the surrounding atmosphere and as such it should still create some NOx no matters what, unless the exhaust is moderated with good old h2o/steam, so as to pull it's temperature down to below the point of creating NOx.. In other words, burning of plan old water or perhaps using h2o2 as an afterburner sort of notion might actually do the trick, making Mook's Skylon a tri-propellant SSTO solution. Therefore, instead of a pair of complex Sabre hybrid engines (including their bulky Nacelle, Inlet, Bypass) at 13,200 kg, whereas one 6,600 kg SSME: offers the Mook suborbital or even orbital LH2/LOx Concorde/Skylon on 1xSSME or 2xJ2X, as offering nearly twice the initial Skylon thrust at half the inert mass without having to incorporate those bulky engine nacelle drag coefficients, by which should actually work a whole better than Skylon with those complex Sabre reaction thrusters, especially if we're down to using the one compact SSME for accomplishing that ascent thrust (@400,000+ lbs and 500,000+ lb at suborbital or LEO altitude). Engine mass: 6597 kg. Manufacturer Name: RS-24. (SSME) Designer: Rocketdyne. Developed: 1972. Propellants: LOx/LH2 Thrust(vacuum): 512,136 lbf (232,301 kgf). 104.5% SSME fuel follows: LOx 424 kg/s, LH2 70.3 kg/s As another point of commercial reference is the fully terrestrial SST Concorde http://www.concordesst.com/techspec.html SST Concorde Rolls-Royce Olympus Engine thrust of 38,050 lb (x4), provides10,000 lb each (40,000 lbs) at supersonic cruising for accommodating 100 passengers +9 crew. Ideal fuel burn @47 lbs/mile and 1250 mph = 58,750 lbs/hr (26,649 kg/ hr excluding atmosphere tonnage) Minimum fuel consumption at 7.4 kg/s. (fuel load: 95,680 kg = 12,930 sec or 3.6 hours [maximum] not including anything such as takeoff, getting to their cruising altitude, of landing or tarmac standby w/ auxiliary APU, as in allowing for nothing but just the best possible cruise mode), with limited fuel reserves should allow for a maximum takeoff to landing of 3.5 hours flight time, possibly 3.75 hrs if having spent zero tarmac standby time and then mostly subsonic gliding in on near empty from 60,000' for accomplishing their minimum fuel consumption mode of a twin-engine landing, thereby leaving just barely enough tarmacàgate maneuvering fuel unless having headwinds to deal with, in which case their supposedly fuel efficient per passenger mile SST comes in shuttle like dead-stick(sort of speak) and it gets tractor towed to the gate. Instead of our continually making lots of spendy CO2 and NOx via fossil or synfuel and always having to consume our badly polluted atmosphere of mostly N2, whereas Mook's Skylon alternative offers us an LH2/LOx method on behalf of pushing such an SST a whole lot faster and further as simply using a better thrust application for the energy demanding task, as well as best off for our badly failing environment. Of course this SSME powered SST or Skylon needs to be at least four times the aerodynamic volume of the existing Concorde, and 90~95% of that volume being of its fuel and related infrastructure, as well as no matters what our lord all-knowing Mook never agrees with anyone, of which pretty much insuring that nothing of any clean energy related consumer merit will ever come of anything associated with the all-or-nothing Mook mindset of his H2 global economy, even though I fully agree with the makings of such liquid fuels from his vast amounts of renewable solar energy is technically doable and should eventually become better off in most every way for our badly failing environment. One more note of a well proven LH2/LOX fly-by-rocket is our space shuttle: Shuttle GLOW Mass (incl. ET and SRBs): 2,029,203 kg (4,474,574 lb) Shuttle 3XSSME Thrust: 1,181,400 lbf combined total, sea level liftoff (5.25 MN) · Shuttle empty weight: 151,205 lb (68,585 kg) · Gross Liftoff Weight: 240,000 lb (109,000 kg) Once again; those main engines of three Rocketdyne Block IIA SSMEs, each with a sea level thrust of 393,800 lbf (174,089 kgf) that only get better results at altitude, seems like such a waste of extremely good and proven as reliable technology, whereas to never apply such on behalf any commercial transport seems worse than pathetic of us. Mook's version of the suborbital SST for his rich and powerful friends will likely need to incorporate at least one such SSME instead of those complex hybrid air breathing rocket engines, whereas Mook's Skylon would likely have at least one such conventional subsonic air breathing engine as his tarmac APU, landing thrust assist and surface maneuvering engine. Most of the extended and expanded composite aerodynamic frame will have to be capable of safely storing vast amounts of his LH2, plus a sufficient cache of LOx, or possibly that of a hauling along a supersonic Sabre rated APU for the task of making our mostly N2 atmosphere into LOx. Of course, most all of this spendier than Skylon R&D and on behalf of creating his initial fleet will have to be paid at least indirectly with public loot, especially since Mook's claim that his solar made LH2 is going to become so vast and gosh darn dirt cheap that his profits will not likely ever become sufficient to pay for much of anything (poor Mook probably couldn't afford a ticket onboard his own suborbital SST, much less of any commercial LEO transport). I'm not nearly as all-knowing or as pro big-energy and forever in favor of bigger government, nor as brown-nose qualified as lord Mook, but I'd have to rethink that perhaps China is already doing us one better with their version of CATS(cheap access to space), plus showing us their good intentions of processing all sorts of nifty and valuable stuff (including 3He) out of our extremely nearby moon seems to represent the best kind of an advanced technology applied future, of where the vast bulk of such imported energy is going to happen in spite of whatever the terrestrial limited likes of Mook or that of our NASA thinks is best. Unlike the usual Usenet gauntlet of all-knowing naysayers and deniers, I have never excluded the makings and use of hydrogen from clean and renewable energy, though having pointed out that a liquid form of H2 and O2 as formulated in h2o2(hydrogen peroxide) offers another good deal of stored energy density without some of the LH2+atmosphere or LOx drawbacks, and h2o2+synfuel or even along with plain old fossil fuel offers us minimal CO2 and essentially a zero NOx end result (even the cooler thrust/exhaust is less likely to create atmospheric reaction NOx) Once having the energy efficient and least NOx producing Mook Skylon at our disposal, is also when we can start thinking along the lines of accomplishing those spendy and somewhat time consuming to/from Venus expeditions in style. With a pair of fully reusable LRBs should more than get this spacecraft on its way with fuel and payload to spare, made even better if having the Chinese LSE-CM/ISS as offering the most efficient orbiting fuel oasis/depot and best possible exit away from Earth's gravity. Perhaps these Usenet MI5/CIA spooks and moles need to rethink upon their Third Reich infowar tactics of having to continually spew such infomercial crapolla, especially since not all the rest of us village idiots are nearly as snookered or as dumbfounded past the point of no return as they'd like to think. Lord only knows if our resident spook Mook might even have to get a for-real job and pay taxes like the rest of us, and learn to speak fluent Mandarin Chinese should go a long ways. - Brad Guth |
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Mook's Skylon @125 meters
Mook's Skylon @125 meters, using his 100% renewable LH2/LOx
Not that Skylon (SSTO hybrid jet/rocket plane) is ever going to achieve those set goals as based upon their existing design, but at least it's offering us another bold step in the right direction. All Skylon needs is either to incorporate greater fuel energy density or simply having more volume of such fuel without significantly increasing their inert mass. Perhaps a 125 meter by 9.6 meter composite hull with similar wings w/o those bulky and massive engine nacelles, and perhaps using a small aerodynamic V tail as coming off a single rear Sabre engine nacelle that's feeding something similar to the J2X that's offering 130 tonnes of thrust., with otherwise this SSTO composite craft using a primary SSME thruster. http://en.wikipedia.org/wiki/SABRE Of course there's always SPACEBUS that could use a good amount of Mook's cheap LH2. http://www.bristolspaceplanes.com/pr...spacebus.shtml Next client for Mook's cheap LH2 and LOx fuel is the SR-3/Blackstar http://en.wikipedia.org/wiki/Blackstar_(spaceplane) Last but not least is the JP-10 fueled scramjet that kept our SR71 kicking spy-plane butt. http://en.wikipedia.org/wiki/SR-71_Blackbird Worth noting is that rocket thrust as combusted along with h2o2 and cyclopropane orbits 140% the payload that h2o2/RP-1 can launch , whereas the SR-71 format doesn't even count when those air breathing engines run essentially as a scramjet from mach 2à3.2, unless otherwise becoming so much better off once hauling slush h2o2 and JP-5/ RP-1, not to mention the added payload boost of using cyclopropane. Black Horse: http://www.fas.org/spp/military/doco...2020/app-h.htm "Using in flight propellant transfer to reduce the Dv needed to fly to space makes it possible for a fighter-sized aircraft to achieve orbit. The enabling technology to do this is non-cryogenic, non-toxic rocket propulsion based on H2O2 and JP-5." Our old USAF Black Horse proposed operations and badly outdated fuel cost: · Each vehicle flies once per week; 400 total sorties per year · Base/site operations and maintenance are $10M per year · Additional site maintenance per flight is $25,000 · Overhead cost per person is $130,000 per year · Propellant cost is $0.20/lb for JP-5, $0.68/lb for H2O2 · 21,000 pounds of fuel are used per sortie (not including tanker) · 155,000 pounds of the h2o2 oxidizer are used per flight Mook's solar affordable H2 or LH2 economy is of course technically doable, although little is actually all that new or improved by way of Mook creating such cheap H2, much less of any H2 to LH2 or Air toLOx, and at best it's insulated volume is simply not compact enough for accommodating most forms of private transportation on any par with liquid fossil/synfuels and good old atmosphere, nor without a risk of creating its own fair share of NOx as whenever having to consume so much of our mostly N2 atmosphere. Of course the Sabre reaction engine manages to exclude most of the N2, essentially capable of processing LOx while on the fly. "Best Books on Hydrogen Future Possibilities": whereas this topic holds some of Mook's better arguments against the established big- energy gauntlet of perpetual denials and naysayism imposed upon the use of any such energy alternative notions other than consuming fossil fuels and creating as much CO2 and NOx as possible. http://groups.google.com/group/sci.e...2257c46?hl=en& Affordable commercial space travel may be at best decades away, if ever, and of the Mook H2 helicopter notion may never fly in commercial service unless also incorporating those complex Sabre LOx producing engines, but perhaps the suborbital capable SST/Concorde/Skylon might actually stand a chance in hell if there's ever going to be such a cheap and renewable supply of LH2 along with a surplus of other clean Mook energy for the essential makings of LOx. Supposedly the pair of Sabre hybrid airbreathing/rocket engines are offering one viable method of extracting LOx on the fly(sort of speak). If combined along with Mook's cheap LH2 is where this Sabre form of obtaining its LOx feed via an airbreathing engine could become the best hybrid thrusting game in town of using the likes of those J2X thrusters. All that's needed is an extremely large amount of such fuel and oxidizer volume in order to accommodate those same 100 passengers plus 9 crew. This much larger Skylon of 125 meters by 9.6 meter of a primary aerodynamic composite shell is also going to represent at least 6400 kg worth of buoyancy offset once most of those LH2 tanks are empty. Skylon w/reaction thrust via two Sabre hybrid airbreathing/rocket engines. http://www.astronautix.com/lvs/skylon.htm "These engines employed liquid hydrogen fuel with atmospheric air up to Mach 5.5 and on-board liquid oxygen beyond that to orbital velocities. At take-off the vehicle carried approximately 66 tonnes of liquid hydrogen and approximately 150 tonnes of liquid oxygen for the ascent." http://www.reactionengines.co.uk/skylon_vehicle.html Length: 82m Fuselage Diameter: 6.25m Wingspan: 25m Unladen Mass: 41,000kg Fuel Mass: 220,000kg Maximum Payload Mass: 12,000kg (I'd give this 6,000 kg or roughly half the Concorde payload) "The thrust during airbreathing ascent was variable but around 200 tonnes. During rocket ascent this rose to 300 tonnes but was then throttled down towards the end of the ascent to limit the longitudinal acceleration to 3.0g." Two of the Saturn J2S engines are worth roughly 240 tonnes of thrust. Two of the new and improved 1650 kg J2X engines should accomplish 260 tonnes of thrust (roughly half of the SSME thrust but also at less than 2/3 the combined inert mass of one SSME). Apparently it takes at least 5 tonnes of LH2 just for getting Skylon down the tarmac, in order to accelerate and fly itself off the deck as headed towards the wild black yonder, and by way of burning off that cache of Mook's cheap slush hydrogen along with consuming vast amounts of atmosphere is unavoidably leaving a lethal trail of NOx most all the way (NOx being much worse than CO2 for our environment because, plants and most other life on Earth simply can not process NOx nor tolerate more than a few ppm, of which can become yet another environmental fiasco since nothing much breaks NOx down). In other words, it takes a great deal of applied energy in order to create LOx while on the supersonic or hypersonic fly, and if that energy is primarily obtained from H2 and atmosphere combustion is simply never going to avoid creating NOx unless the Sabre engine itself that's making its own LOx manages to divert the greater portion of N2 prior to combustion (technically doable in the lab but not quite as commercially airworthy viable as of their existing technology). Supposedly at supersonic or scramjet velocity, along with cold enough air, is when the Saber engine manages to create its own LOx in excess of its needs, and thereby minimizing the risk of directly creating NOx within it's primary LH2/LOx rocket thrust combustion process, although indirectly the substantial exhaust will have to interact with the surrounding atmosphere, and as such it should still create some NOx no matters what unless the exhaust/thrust is moderated with good old h2o/ steam, so as to pull it's core or plume temperature down to below the point of creating NOx.. In other words, burning of plan old water or perhaps using h2o2 as an afterburner sort of notion might actually do the trick, making Mook's Skylon a tri-propellant SSTO solution that'll produce the least amount of NOx. Therefore, perhaps instead of a pair of complex Sabre hybrid engines (including their bulky Nacelle, Inlet, Bypass) at 13,200 kg, whereas one 6,600 kg SSME: offers the Mook suborbital or even orbital LH2/LOx Concorde/Skylon on 1xSSME or 2xJ2X, as offering nearly twice the initial Skylon thrust at half the inert mass by not having to incorporate those bulky engine nacelle drag coefficients, which should actually work a whole better than any original Skylon with those complex Sabre reaction thrusters, especially if we're down to using the one compact SSME for accomplishing that ascent thrust (@400,000+ lbs and 500,000+ lb at LEO altitude), or perhaps even using as little as one J2X is within spec for those suborbital applications. Engine mass: 6597 kg. Manufacturer Name: RS-24. (SSME) Designer: Rocketdyne. Developed: 1972. Propellants: LOx/LH2 Thrust(vacuum): 512,136 lbf (232,301 kgf). 104.5% SSME fuel follows: LOx 424 kg/s, LH2 70.3 kg/s As another point of commercial reference as been the fully terrestrial SST Concorde http://www.concordesst.com/techspec.html SST Concorde Rolls-Royce Olympus Engine thrust of 38,050 lb (x4), provides10,000 lb each (40,000 lbs) at supersonic cruising for accommodating 100 passengers +9 crew. Ideal fuel burn @47 lbs/mile and 1250 mph = 58,750 lbs/hr (26,649 kg/ hr excluding atmosphere tonnage) Minimum fuel consumption at 7.4 kg/s. (fuel load: 95,680 kg = 12,930 sec or 3.6 hours [maximum] not including anything such as takeoff, getting to their cruising altitude, of landing or tarmac standby w/ auxiliary APU, as in allowing for nothing but just the best possible cruise mode), with limited fuel reserves should allow for a maximum takeoff to landing of 3.5 hours flight time, possibly 3.75 hrs if having spent zero tarmac standby time and then mostly subsonic gliding in on near empty from 60,000' for accomplishing their minimum fuel consumption mode of a twin-engine landing, thereby leaving just barely enough tarmac to gate maneuvering fuel unless having headwinds to deal with, in which case their supposedly fuel efficient per passenger mile SST comes in shuttle like dead-stick(sort of speak) and it gets tractor towed to the gate. Instead of our continually making lots of spendy CO2 and NOx via fossil or synfuel and always having to consume our badly polluted atmosphere of mostly N2, whereas Mook's Skylon alternative offers us an LH2/LOx method on behalf of pushing such an SST a whole lot faster and further as simply by way of using a better thrust application for the energy demanding task, as well as best off for our badly failing environment. Of course this SSME powered SST or Mook Skylon needs to be at least four times the aerodynamic volume of the existing Concorde, and 90~95% of that volume being of its fuel and related infrastructure, as well as no matters what our lord all-knowing Mook never agrees with anyone, of which pretty much insures that nothing of any clean energy related consumer merit will ever come of anything associated with the all-or-nothing Mook mindset of his H2 global economy, even though I fully agree with the makings of such liquid fuels from his vast amounts of renewable solar energy has been technically doable and should eventually become better off in most every way for our badly failing environment and even saving most of us from having to spend so much of our hard earned loot. One more note of a well proven LH2/LOX fly-by-rocket application that'll directly benefit from Mook's fuel is our space shuttle: Shuttle GLOW Mass (incl. ET and SRBs): 2,029,203 kg (4,474,574 lb) Shuttle 3XSSME Thrust: 1,181,400 lbf combined total, sea level liftoff (5.25 MN) · Shuttle empty weight: 151,205 lb (68,585 kg) · Gross Liftoff Weight: 240,000 lb (109,000 kg) Once again; those main engines of three Rocketdyne Block IIA SSMEs, each with a sea level thrust of 393,800 lbf (174,089 kgf) that only get better thrust results at altitude, whereas to never apply such on behalf any commercial transport seems worse than pathetic of us, not to mention such a waste of extremely good and proven as reliable technology of a relatively clean fuel burning energy usage. Mook's version of the suborbital SST for his rich and powerful friends will likely need to incorporate at least one J2X or SSME instead of those complex hybrid air breathing rocket engines, whereas Mook's Skylon would most likely have to incorporate at least one such conventional subsonic air breathing engine as his tarmac APU, landing thrust assist and surface maneuvering engine. Most of the extended and expanded composite aerodynamic frame will have to be capable of safely storing vast amounts of his LH2, plus a sufficient onboard cache of LOx, or quite possibly that of a hauling along a supersonic Sabre rated APU for the task of making our mostly N2 atmosphere into LOx. Of course, most all of this spendier than Skylon R&D and on behalf of creating his initial fleet will have to be paid at least indirectly with public loot, especially since Mook's claim that his solar made LH2 is going to become so vast and gosh darn dirt cheap that his profits will not likely ever become sufficient to pay for much of anything (poor Mook probably couldn't afford a ticket onboard his own suborbital SST, much less of any commercial LEO transport). I'm not nearly as all-knowing or as pro big-energy and forever in favor of bigger government, nor anywhere as brown-nose qualified as lord Mook, but I'd have to rethink that perhaps China is already doing us one better with their version of CATS(cheap access to space), plus showing us their good intentions of processing all sorts of nifty and valuable stuff (including 3He) out of our extremely nearby moon seems to represent the best kind of an advanced technology applied future, of where the vast bulk of such imported energy is going to happen in spite of whatever the terrestrial limited notions of Mook or even that of our NASA thinks is best. Unlike the usual Usenet gauntlet of all-knowing naysayers and deniers, I have never excluded the makings and use of hydrogen from clean and renewable solar energy, though having pointed out that a liquid form of H2 and O2 as formulated instead as h2o2(hydrogen peroxide) offers another good deal of stored energy density without some of the LH2+atmosphere or LOx demanding drawbacks, and h2o2+synfuel or even along with plain old fossil fuel offers us minimal CO2 and essentially a zero NOx end result (even the cooler thrust/exhaust is far less likely to create atmospheric reaction NOx) However, the solid win-win is once having the energy efficient and least NOx producing Mook Skylon at our disposal, is also when we can start thinking along the lines of accomplishing those spendy and somewhat time consuming to/from Venus expeditions in style. With a pair of fully reusable LRBs should more than get this spacecraft on its way with fuel and payload to spare, made even better once having the Chinese LSE-CM/ISS as offering the most efficient orbiting fuel oasis/depot and best possible exit or local gateway of getting such missions away from Earth's gravity. Perhaps these Usenet MI5/CIA spooks and moles need to rethink upon their Third Reich infowar tactics, of their always having to continually spew such infomercial and naysay crapolla, especially since not all the rest of us village idiots are nearly as snookered or as dumbfounded past the point of no return as they'd like to think. Lord only knows if our resident spook Mook might even have to get a for-real job and pay taxes like the rest of us, and learn to speak fluent Mandarin Chinese should go a long ways since China is most likely going to be in charge of future space travels, while our MI5/ CIA~NASA stays focused upon FOBS. - Brad Guth |
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Mook's Skylon @125 meters
The latest in fast human air-transport via eyecandy infomercial hype
(w/o airframe specifics, such at LOA, GLOW and inert mass) on using hydrogen fuel isn't quite telling us the whole truth and nothing but the truth. Lapcat's A2 w/Scimitar reaction engines is nothing but a substantial NOx producing alternative to what the Skylon's Sabre hybrid rocket engine can deliver as an even faster ride at nearly zero NOx, as well as Skylon having LEO capability via the same LH2 and self- made liquefied air w/o N2 that'll create the least NOx. Much of life on Earth can eventually adapt to higher levels of CO2, which is not the case with NOx. Mook's Skylon @125 meters, using his 100% renewable LH2/LOx Not that Skylon (SSTO hybrid jet/rocket plane) is ever going to achieve those set goals as based upon their existing design, but at least it's offering us another bold step in the right direction. All Skylon needs is either to incorporate greater fuel energy density or simply having more volume of such fuel without significantly increasing their inert mass. Perhaps a 125 meter by 9.6 meter composite hull with similar wings w/o those bulky and massive engine nacelles, and perhaps using a small aerodynamic V tail as coming off a single rear Sabre engine nacelle that's feeding something similar to the J2X that's offering 130 tonnes of thrust., with otherwise this SSTO composite craft using a primary SSME thruster. http://en.wikipedia.org/wiki/SABRE Of course there's always SPACEBUS that could use a good amount of Mook's cheap LH2. http://www.bristolspaceplanes.com/pr...spacebus.shtml Next client for Mook's cheap LH2 and LOx fuel is the SR-3/Blackstar http://en.wikipedia.org/wiki/Blackstar_(spaceplane) Last but not least is the JP-10 fueled scramjet that kept our SR71 kicking spy-plane butt. http://en.wikipedia.org/wiki/SR-71_Blackbird Worth noting is that rocket thrust as combusted along with h2o2 and cyclopropane orbits 140% the payload that h2o2/RP-1 can launch , whereas the SR-71 format doesn't even count when those air breathing engines run essentially as a scramjet from mach 2~3.2, unless otherwise becoming so much better off once hauling slush h2o2 and JP-5/ RP-1, not to mention the added payload boost of using cyclopropane. Black Horse: http://www.fas.org/spp/military/doco...2020/app-h.htm "Using in flight propellant transfer to reduce the Dv needed to fly to space makes it possible for a fighter-sized aircraft to achieve orbit. The enabling technology to do this is non-cryogenic, non-toxic rocket propulsion based on H2O2 and JP-5." Our old USAF Black Horse proposed operations and badly outdated fuel cost: · Each vehicle flies once per week; 400 total sorties per year · Base/site operations and maintenance are $10M per year · Additional site maintenance per flight is $25,000 · Overhead cost per person is $130,000 per year · Propellant cost is $0.20/lb for JP-5, $0.68/lb for H2O2 · 21,000 pounds of fuel are used per sortie (not including tanker) · 155,000 pounds of the h2o2 oxidizer are used per flight Mook's solar affordable H2 or LH2 economy is of course technically doable, although little is actually all that new or improved by way of Mook creating such cheap H2, much less of any H2 to LH2 or Air to LOx, and at best it's insulated volume is simply not compact enough for accommodating most forms of private transportation on any par with liquid fossil/synfuels using good old atmosphere, nor without a risk of creating its own fair share of NOx as whenever airbreating engines are having to consume so much of our mostly N2 atmosphere. Of course the Sabre hybrid reaction engine manages to exclude most of the N2, essentially capable of processing LOx while on the fly. "Best Books on Hydrogen Future Possibilities": whereas this topic holds some of Mook's better arguments against the established big- energy gauntlet of perpetual denials and naysayism imposed upon the use of any such energy alternative notions other than consuming fossil fuels and creating as much CO2 and NOx as possible. http://groups.google.com/group/sci.e...2257c46?hl=en& Affordable commercial space travel may be at best decades away, if ever, and of the Mook H2 helicopter notion may never fly in commercial service unless also incorporating those complex Sabre LOx producing engines, but perhaps the suborbital capable SST/Concorde/Skylon might actually stand a chance in hell if there's ever going to be such a cheap and renewable supply of LH2 along with a surplus of other clean Mook energy for the essential makings of LOx. Supposedly the pair of Sabre hybrid airbreathing/rocket engines are offering one viable method of extracting LOx on the fly(sort of speak). If combined along with Mook's cheap LH2 is where this Sabre form of obtaining its LOx feed via an airbreathing engine could become the best hybrid thrusting game in town of using the likes of those J2X thrusters. All that's needed is an extremely large amount of such fuel and oxidizer volume in order to accommodate those same 100 passengers plus 9 crew. This much larger Skylon of 125 meters by 9.6 meter of a primary aerodynamic composite shell is also going to represent at least 6400 kg worth of buoyancy offset once most of those LH2 tanks are empty. Skylon w/reaction thrust via two Sabre hybrid airbreathing/rocket engines. http://www.astronautix.com/lvs/skylon.htm "These engines employed liquid hydrogen fuel with atmospheric air up to Mach 5.5 and on-board liquid oxygen beyond that to orbital velocities. At take-off the vehicle carried approximately 66 tonnes of liquid hydrogen and approximately 150 tonnes of liquid oxygen for the ascent." http://www.reactionengines.co.uk/skylon_vehicle.html Length: 82m Fuselage Diameter: 6.25m Wingspan: 25m Unladen Mass: 41,000kg Fuel Mass: 220,000kg Maximum Payload Mass: 12,000kg (I'd give this 6,000 kg or roughly half the Concorde payload) "The thrust during airbreathing ascent was variable but around 200 tonnes. During rocket ascent this rose to 300 tonnes but was then throttled down towards the end of the ascent to limit the longitudinal acceleration to 3.0g." Two of the Saturn J2S engines are worth roughly 240 tonnes of thrust. Two of the new and improved 1650 kg J2X engines should accomplish 260 tonnes of thrust (roughly half of the SSME thrust but also at less than 2/3 the combined inert mass of one SSME). Apparently it takes at least 5 tonnes of LH2 just for getting Skylon down the tarmac, in order to accelerate and fly itself off the deck as headed towards the wild black yonder, and by way of burning off that cache of Mook's cheap slush hydrogen along with consuming vast amounts of atmosphere is unavoidably leaving a lethal trail of NOx most all the way (NOx being much worse than CO2 for our environment because, plants and most other life on Earth simply can not process NOx nor tolerate more than a few ppm, of which can become yet another environmental fiasco since nothing much breaks NOx down). In other words, it takes a great deal of applied energy in order to create LOx while on the supersonic or hypersonic fly, and if that energy is primarily obtained from H2 and atmosphere combustion is simply never going to avoid creating NOx unless the Sabre engine itself that's making its own LOx manages to divert the greater portion of N2 prior to combustion (technically doable in the lab but not quite as commercially airworthy viable as of their existing technology). Supposedly at supersonic or scramjet velocity, along with cold enough air, is when the Saber engine manages to create its own LOx in excess of its needs, and thereby minimizing the risk of directly creating NOx within it's primary LH2/LOx rocket thrust combustion process, although indirectly the substantial exhaust will have to interact with the surrounding atmosphere, and as such it should still create some NOx no matters what unless the exhaust/thrust is moderated with good old h2o/ steam, so as to pull it's core or plume temperature down to below the point of creating NOx.. In other words, burning of plan old water or perhaps using h2o2 as an afterburner sort of notion might actually do the trick, making Mook's Skylon a tri-propellant SSTO solution that'll produce the least amount of NOx. Therefore, perhaps instead of a pair of complex Sabre hybrid engines (including their bulky Nacelle, Inlet, Bypass) at 13,200 kg, whereas one 6,600 kg SSME: offers the Mook suborbital or even orbital LH2/LOx Concorde/Skylon on 1xSSME or 2xJ2X, as offering nearly twice the initial Skylon thrust at half the inert mass by not having to incorporate those bulky engine nacelle drag coefficients, which should actually work a whole better than any original Skylon with those complex Sabre reaction thrusters, especially if we're down to using the one compact SSME for accomplishing that ascent thrust (@400,000+ lbs and 500,000+ lb at LEO altitude), or perhaps even using as little as one J2X is within spec for those suborbital applications. Engine mass: 6597 kg. Manufacturer Name: RS-24. (SSME) Designer: Rocketdyne. Developed: 1972. Propellants: LOx/LH2 Thrust(vacuum): 512,136 lbf (232,301 kgf). 104.5% SSME fuel follows: LOx 424 kg/s, LH2 70.3 kg/s As another point of commercial reference as been the fully terrestrial SST Concorde http://www.concordesst.com/techspec.html SST Concorde Rolls-Royce Olympus Engine thrust of 38,050 lb (x4), provides10,000 lb each (40,000 lbs) at supersonic cruising for accommodating 100 passengers +9 crew. Ideal fuel burn @47 lbs/mile and 1250 mph = 58,750 lbs/hr (26,649 kg/ hr excluding atmosphere tonnage) Minimum fuel consumption at 7.4 kg/s. (fuel load: 95,680 kg = 12,930 sec or 3.6 hours [maximum] not including anything such as takeoff, getting to their cruising altitude, of landing or tarmac standby w/ auxiliary APU, as in allowing for nothing but just the best possible cruise mode), with limited fuel reserves should allow for a maximum takeoff to landing of 3.5 hours flight time, possibly 3.75 hrs if having spent zero tarmac standby time and then mostly subsonic gliding in on near empty from 60,000' for accomplishing their minimum fuel consumption mode of a twin-engine landing, thereby leaving just barely enough tarmac to gate maneuvering fuel unless having headwinds to deal with, in which case their supposedly fuel efficient per passenger mile SST comes in shuttle like dead-stick(sort of speak) and it gets tractor towed to the gate. Instead of our continually making lots of spendy CO2 and NOx via fossil or synfuel and always having to consume our badly polluted atmosphere of mostly N2, whereas Mook's Skylon alternative offers us an LH2/LOx method on behalf of pushing such an SST a whole lot faster and further as simply by way of using a better thrust application for the energy demanding task, as well as best off for our badly failing environment. Of course this SSME powered SST or Mook Skylon needs to be at least four times the aerodynamic volume of the existing Concorde, and 90~95% of that volume being of its fuel and related infrastructure, as well as no matters what our lord all-knowing Mook never agrees with anyone, of which pretty much insures that nothing of any clean energy related consumer merit will ever come of anything associated with the all-or-nothing Mook mindset of his H2 global economy, even though I fully agree with the makings of such liquid fuels from his vast amounts of renewable solar energy has been technically doable and should eventually become better off in most every way for our badly failing environment and even saving most of us from having to spend so much of our hard earned loot. One more note of a well proven LH2/LOX fly-by-rocket application that'll directly benefit from Mook's fuel is our space shuttle: Shuttle GLOW Mass (incl. ET and SRBs): 2,029,203 kg (4,474,574 lb) Shuttle 3XSSME Thrust: 1,181,400 lbf combined total, sea level liftoff (5.25 MN) · Shuttle empty weight: 151,205 lb (68,585 kg) · Gross Liftoff Weight: 240,000 lb (109,000 kg) Once again; those main engines of three Rocketdyne Block IIA SSMEs, each with a sea level thrust of 393,800 lbf (174,089 kgf) that only get better thrust results at altitude, whereas to never apply such on behalf any commercial transport seems worse than pathetic of us, not to mention such a waste of extremely good and proven as reliable technology of a relatively clean fuel burning energy usage. Mook's version of the suborbital SST for his rich and powerful friends will likely need to incorporate at least one J2X or SSME instead of those complex hybrid air breathing rocket engines, whereas Mook's Skylon would most likely have to incorporate at least one such conventional subsonic air breathing engine as his tarmac APU, landing thrust assist and surface maneuvering engine. Most of the extended and expanded composite aerodynamic frame will have to be capable of safely storing vast amounts of his LH2, plus a sufficient onboard cache of LOx, or quite possibly that of a hauling along a supersonic Sabre rated APU for the task of making our mostly N2 atmosphere into LOx. Of course, most all of this spendier than Skylon R&D and on behalf of creating his initial fleet will have to be paid at least indirectly with public loot, especially since Mook's claim that his solar made LH2 is going to become so vast and gosh darn dirt cheap that his profits will not likely ever become sufficient to pay for much of anything (poor Mook probably couldn't afford a ticket onboard his own suborbital SST, much less of any commercial LEO transport). I'm not nearly as all-knowing or as pro big-energy and forever in favor of bigger government, nor anywhere as brown-nose qualified as lord Mook, but I'd have to rethink that perhaps China is already doing us one better with their version of CATS(cheap access to space), plus showing us their good intentions of processing all sorts of nifty and valuable stuff (including 3He) out of our extremely nearby moon seems to represent the best kind of an advanced technology applied future, of where the vast bulk of such imported energy is going to happen in spite of whatever the terrestrial limited notions of Mook or even that of our NASA thinks is best. Unlike the usual Usenet gauntlet of all-knowing naysayers and deniers, I have never excluded the makings and use of hydrogen from clean and renewable solar energy, though having pointed out that a liquid form of H2 and O2 as formulated instead as h2o2(hydrogen peroxide) offers another good deal of stored energy density without some of the LH2+atmosphere or LOx demanding drawbacks, and h2o2+synfuel or even along with plain old fossil fuel offers us minimal CO2 and essentially a zero NOx end result (even the cooler thrust/exhaust is far less likely to create atmospheric reaction NOx) However, the solid win-win is once having the energy efficient and least NOx producing Mook Skylon at our disposal, is also when we can start thinking along the lines of accomplishing those spendy and somewhat time consuming to/from Venus expeditions in style. With a pair of fully reusable LRBs should more than get this spacecraft on its way with fuel and payload to spare, made even better once having the Chinese LSE-CM/ISS as offering the most efficient orbiting fuel oasis/depot and best possible exit or local gateway of getting such missions away from Earth's gravity. Perhaps these Usenet MI5/CIA spooks and moles need to rethink upon their Third Reich infowar tactics, of their always having to continually spew such infomercial and naysay crapolla upon everything that's not of their idea to start with, especially since not all the rest of us village idiots are nearly as snookered or as dumbfounded past the point of no return as they'd like to think. Lord only knows if our resident spook Mook might even have to get a for-real job and pay taxes like the rest of us, and learn to speak fluent Mandarin Chinese should go a long ways since China is most likely going to be in charge of future space travels, while our MI5/CIA~NASA stays focused upon FOBS. - Brad Guth |
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