|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system.
http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. |
#2
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On Friday, December 26, 2014 5:01:16 PM UTC+13, William Mook wrote:
A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. http://www.wolframalpha.com/input/?i...+configuration |
#3
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On Friday, December 26, 2014 5:05:49 PM UTC+13, William Mook wrote:
On Friday, December 26, 2014 5:01:16 PM UTC+13, William Mook wrote: A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. http://www.wolframalpha.com/input/?i...+configuration http://proto3000.com/assets/uploads/...S-Aluminum.pdf A 51 mm diameter rocket that is 283 mm long and is made of an additively manufactured aluminum alloy that's 48 um thick and masses 5.81 grams. It has a 48 mm diameter ring of MEMS bipropellant rockets that are 48 um wide and number 3,141 propulsive elements that produce a grand total of 2.5 Newtons.. Each produce 796 micro-Newtons of thrust. |
#4
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On 26/12/2014 3:01 PM, William Mook wrote:
A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. Where's the video of your proving flight? Sylvia. |
#5
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On Friday, December 26, 2014 10:31:04 PM UTC+13, Sylvia Else wrote:
On 26/12/2014 3:01 PM, William Mook wrote: A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. Where's the video of your proving flight? Sylvia. Qualified buyers may arrange demonstration. |
#6
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On Saturday, December 27, 2014 10:41:02 AM UTC+13, William Mook wrote:
On Friday, December 26, 2014 10:31:04 PM UTC+13, Sylvia Else wrote: On 26/12/2014 3:01 PM, William Mook wrote: A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. Where's the video of your proving flight? Sylvia. Qualified buyers may arrange demonstration. I will place an object into Sun Synch polar orbit in 2015 and recover it after 6 orbits 12 hours after launch at the launch point. All components are highly reusable. I will make a video of the entire Earth from orbit and upload that along with video of launch and recovery on a website I will create *after* the flight. |
#7
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On Saturday, December 27, 2014 10:45:44 AM UTC+13, William Mook wrote:
On Saturday, December 27, 2014 10:41:02 AM UTC+13, William Mook wrote: On Friday, December 26, 2014 10:31:04 PM UTC+13, Sylvia Else wrote: On 26/12/2014 3:01 PM, William Mook wrote: A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. Where's the video of your proving flight? Sylvia. Qualified buyers may arrange demonstration. I will place an object into Sun Synch polar orbit in 2015 and recover it after 6 orbits 12 hours after launch at the launch point. All components are highly reusable. I will make a video of the entire Earth from orbit and upload that along with video of launch and recovery on a website I will create *after* the flight. Supersonic propellers were developed in the late 1940s. Speeds of up to Mach 1.4 were proven to be possible. That's 475 m/sec. Or 0.475 km/sec. They were studied again in the 1980s as a means to improve fuel efficiency of supersonic transport planes. Now one interesting use of this technology is as a booster for a space launch system. That's because so much fuel is used during the first three minutes of a rocket's take off. As its rising slowly balanced on its rocket exhaust, that's when its using the most propellent! Consider that a hydrogen oxygen rocket with an exhaust speed of 4.2 km/sec at sea level burns 10.7% of its take off weight accelerating to this speed even when its not fighting gravity. Accelerating while flying straight up at 1.28 gees takes the rocket fights gravity all the way. It takes 173 seconds to get to Mach 1.4 which adds another 1.7 km/sec to the effective delta vee even though the ship is only moving at 0.475 km/sec! That is, the entire delta vee component to reach Mach 1.4 for a rocket after take off is 2.175 km/sec. This requires 40.4% of the vehicle's take off weight!!! Now, what if we had a rocket powered - or ram jet powered - supersonic propeller? This was the idea behind the ROTON rocket! In my view, the Roton folks had the propeller in the wrong place, and they were using a subsonic variety of propeller. What if they had put the propeller in a ducted fan arrangement at the tail end of the craft and operated it as a supersonic type propeller? It would weigh more certainly, but you don't have to carry it to orbit. You can drop the propeller stage after you're done with it. That's another thing Roton got wrong! They carried their propeller to orbit and used it instead of parachutes to land. So, what would an effective rotor used for space launch look like? Well it would be supersonic, and be able to carry a vehicle through MaxQ and Mach 1.4 - that's 1.4x the speed of sound. It would have an effective exhaust speed of 0.9 km/sec and impart an effective delta vee of 2.175 km/sec as described above. This means that for each kg of take off weight 10.21 kg of air must be accelerated to move at 0.9 km/sec to produce thrust. This takes 4.14 MJ/kg of take off weight. With a propeller efficiency of 80% and using Newton's laws of motion we can figure out that this stage requires the combustion of 36.4 grams of hydrogen for each kg of take off weight to achieve this result. Contrast 36.4 grams of hydrogen burned in air, with a pure rocket stage that requires the combustion of 62.15 grams of hydrogen along with 341.85 grams of oxygen for each kg of take off weight! Even if the propeller assembly massed 50 grams per kg, it would be a huge savings to the vehicle! Turning that around, for a given take off weight, we get a huge increase in payload to orbit! So, a supersonic propeller driven ramjet powered hydrogen fuelled fly back booster that detaches at Mach 1.4 after 173 seconds of flight achieves an altitude of 40 km while travelling 10 km down range. This stage masses 86.4 grams for each 1000 grams of take off weight and produces 1.28 gees at lift off (12.6 Newtons/kg take off weight) and pushes the rocket through MaxQ using very little propellant in the process. The weight of the propeller and duct is a problem, but we jettison the entire assembly at 40 km altitude, and the entire assembly auto-rotates back to the launch centre. So, let's put some numbers on this. Let's imagine a self powered External Tank, equipped with a thermal protection system that lets it fly back, and with inflatable heat shield that let's it slow down. Its also equipped with an aerospike engine that adjusts performance with altitude, so operates efficiently at all altitudes. The aerospike engine is attached to the base of the tank and the heat shield is attached there as well. The inter-tank section - the space between liquid oxygen and liquid hydrogen, is stretched and used as a cargo area. Now that's a lot to take in, but I've discussed it in other posts, and have written extensively about it professionally. The take-away here is that we have an External Tank shaped flight unit that masses 29.5 kilograms empty, and carries 600.8 kilograms of LOX and 109.2 kilograms of LH2. From this we calculate using our numbers above the requirements of a supersonic propeller that operates at its base. We can see that propeller based booster masses 69.9 kilograms. This consists of 29.45 kilograms of LH2 and 40.45 kilograms inert weight. The ET shaped stage is 4690 millimeters long and 840 millimeters in diameter. The propeller has an 840 millimeter diameter bearing at its centre spinning within a 1240 millimeters diameter duct that is 1040 millimeters long. A central hydrogen tank attaches to the base of the zero height aerospike engine and it is 840 millimeters in diameter and 1040 millimeters long as well. It rests on a tripod landing gear that folds away. The tank has a 200 millimeter long 840 millimeter diameter cylindrical section with two spherical end caps. Around the cylindrical section rotates the hydrogen ramjet powered contra rotating supersonic propellers, resting in gas lubricated journal bearings that are maintained by a lightweight gas generator in the stage. When the base tank empties, the tank and props separate and auto rotate back to the launch centre for a soft touch down like a helicopter gliding in for a landing. A small amount of propellant permits a soft controlled touchdown. The cool part is that the vehicle, after separation of this stage must only achieve a delta vee of 7.025 km/sec instead of its usual 9.2 km/sec from a dead start. This means that with a 4.4 km/sec exhaust speed now (higher exhaust than at sea level due to lower atmospheric pressure) only 79.74% of the vehicle mass must be propellant. With 710 kilograms of propellant this means 890.3 kilogram stage weight at this point. Subtracting the propellant and inert weight (without the rotors which have separated) this means a single tank places 150.8 kilograms (332 lbs) into Low Earth Orbit! Ford Ranger, Chevrolet S-10, and GMC S-15 trucks are called quarter-ton trucks. (1⁄4-ton) That's 227 kg - which is close to the capacity of the vehicle just described! Now 29.45 kg of hydrogen for the prop along with 109.2 kg of hydrogen for the main tank - requires 1,247.85 litres of water be broken down into hydrogen and oxygen - and the hydrogen along with most of the oxygen - liquefied and loaded into the appropriate tanks. 1 MW of electrical power permits the filling of this highly reusable launch system every 12 hours. At $0.11 per kWh 12,000 kWh costs $1,320. The two stage vehicle masses 69.95 kg - and at $22,000 per kg it costs $1,539,120. Add in the cost of the launch centre and you have $2.5 million. With 4,000 uses you have $793 added to the costs - applying 8% discount rate over the vehicle's useful life. At 2 flights per day - you have a useful life of 5.5 years. At 4% per year cost each unit (and launch centre) costs $100,000 per year. At 2 flights per day this is another $137 per launch. $1,320 - propellant cost $ 793 - capital cost $ 137 - operating cost -------- $2,250 - total cost 150.8 kg - less than $15 per kg delivery cost! Now, launching a payload into a sun synchronous polar orbit will fly over every spot on Earth every 12 hours. The vehicle returns to the launch centre every 12 hours. So, you can fly to orbit, and land at the launch centre 12 hours later. Now, you can have another launch centre anywhere else on Earth. It can receive and refuel the launcher, (with its own supersonic prop launcher) and send it back to the launch centre, or send it on to another launch centre anywhere. So, in this way you can have a network that delivers anything anywhere in 12 hours. Who would pay $2.5 million for a launch site that cost $100,000 per year to deliver anything in hours anywhere? Someone with something expensive to deliver. At $10 per gram payload a 150 kg payload is worth $1.5 million. That's $3.0 million per day of produce. And $10 per gram is the low end! http://learni.st/users/SteveSegovia/...s-in-the-world http://coolmaterial.com/cool-list/24...veryday-items/ Ballistic delivery drones that feed aerial delivery drones that allows delivery of a package from anywhere to anywhere in 24 hours. http://en.wikipedia.org/wiki/Delivery_drone What about mail? Type Weight Length Width Thickness Reg. Letter 100g 240mm 165mm 5mm Large Letter 750g 353mm 250mm 25mm So, at $8.50 for delivery of a regular letter, and $1.25 for a large letter + $0.085 per gram - Type Weight Cost Regular 100 $8.50 Large 150 $14.00 200 $18.25 250 $22.50 300 $26.75 350 $31.00 400 $35.25 450 $39.50 500 $43.75 550 $48.00 600 $52.25 650 $56.50 700 $60.75 750 $65.00 This is $85 per kg and $12,750 per flight. Times 730 flights per year $9,307,500 per year per ship. With a 5.5 year life span this is $51.2 million over the product's life cycle. FedEx Corporation sells $45 billion in shipments per year. United Parcel Service (UPS) sells $54 billion in shipments per year. This is a total of $99 billion per year. This requires 10,637 ships of the size described here.. This is $26.59 billion worth of equipment. Now spread evenly over the land surface of the Earth, 10,637 ships are 136 km apart, centre to centre, with some overlap. A subsonic delivery drone transport operating at 942 kph takes less than 9 minutes to deliver and return to a launch centre where one of these rockets operates. |
#8
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On 27/12/2014 8:45 AM, William Mook wrote:
On Saturday, December 27, 2014 10:41:02 AM UTC+13, William Mook wrote: On Friday, December 26, 2014 10:31:04 PM UTC+13, Sylvia Else wrote: On 26/12/2014 3:01 PM, William Mook wrote: A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. Where's the video of your proving flight? Sylvia. Qualified buyers may arrange demonstration. I will place an object into Sun Synch polar orbit in 2015 and recover it after 6 orbits 12 hours after launch at the launch point. All components are highly reusable. I will make a video of the entire Earth from orbit and upload that along with video of launch and recovery on a website I will create *after* the flight. That will be impressive. I look forward to seeing it. Sylvia. |
#9
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On Tuesday, January 6, 2015 6:32:49 PM UTC+13, Fred J. McCall wrote:
Sylvia Else wrote: On 26/12/2014 3:01 PM, William Mook wrote: A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2..5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. Where's the video of your proving flight? He's going to tell you you have to put up $10 million before he'll show it to you. -- "You take the lies out of him, and he'll shrink to the size of your hat; you take the malice out of him, and he'll disappear." -- Mark Twain https://books.google.co.nz/books?id=...page&q&f=false All you have to do is be a qualified buyer. |
#10
|
|||
|
|||
RC Rocketry - Ready to Fly to Orbit
On Tuesday, January 6, 2015 9:23:09 PM UTC+13, Fred J. McCall wrote:
William Mook wrote: On Tuesday, January 6, 2015 6:32:49 PM UTC+13, Fred J. McCall wrote: Sylvia Else wrote: On 26/12/2014 3:01 PM, William Mook wrote: A 48 micron thick of Aluminum/Magnesium alloy formed into a miniature External Tank that's 51 mm in diameter and 283 mm long that carries 24.85 grams of LH2 and 136.75 grams of LOX - a total of 161.52 grams of propellant carried in a 5.81 gram tank system. http://www.keytometals.com/Article74.htm http://3dprintingindustry.com/aerospace/ This is 1/3 the thickness of soda can material made of slightly lighter materials. The thruster is a MEMS bipropellant rocket with a 425 second Isp. A 2.5 Newton rocket array masses 260 milligrams and covers 7.23 sq mm area. This produces 1.54 gees at lift-off http://cap.ee.ic.ac.uk/~pdm97/powerm...53_Epstein.pdf http://spaceflightnow.com/news/n0105/17trwmems/ The 1080i HDTV camera, laser and radio link, inertial guidance, and control system mass 14 grams and is powered by hydrogen and oxygen vented from the propellant system. A two kilowatt propellant management and deep space communications system that is comprised of a 1 kW electrolysis unit and a 1 kW MEMS based cryocooler, electrolyzes 225 ml of water into 24.85 grams of LH2 and 136.75 grams of LOX in less than 1 hour. The system holds 1 litre of DI water and can fuel three vehicles in three hours and put them on hold for up to 24 hours and automatically launch them when desired over that period. The entire system is controlled through a downloadable app from your iPhone6 which streams data from the launch unit via bluetooth and the unit streams from the vehicles via bluetooth when within 100 meters and via laser link at larger distances, including line of sight distances reaching into interplanetary space up to 1 Gbit/sec. http://www.space.com/22680-nasa-luna...fographic.html Three boosters may be launched individually or operated as a single clustered unit. The clustered unit may orbit a 35 gram satellite that carries a solar powered ion engine array capable of flying beyond Earth orbit to the Moon, Mars, Venus, Mercury, or the Asteroid belt. http://scmero.ulb.ac.be/project.php?..._membrane.html http://lmts.epfl.ch/MEMS-ion-source These units are available from Coeus Limited of NZ. Interested parties may reply to Prices for ready to fly systems that run on Water and AC mains range $225,000 and up. Where's the video of your proving flight? He's going to tell you you have to put up $10 million before he'll show it to you. -- "You take the lies out of him, and he'll shrink to the size of your hat; you take the malice out of him, and he'll disappear." -- Mark Twain https://books.google.co.nz/books?id=...page&q&f=false All you have to do is be a qualified buyer. Which means you need to pony up money. This is your usual stupid dodge, Mookie. Just how long do you think you can play it? -- "Ordinarily he is insane. But he has lucid moments when he is only stupid." -- Heinrich Heine Nonsense. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Relativistic Rocketry | William Mook[_2_] | Policy | 2 | October 10th 11 06:26 AM |
Venusian rocketry. | Ian Stirling | Technology | 5 | May 5th 04 02:16 AM |
British rocketry | [email protected] | History | 10 | January 23rd 04 07:57 PM |
Improved Isp Rocketry II | Mike Miller | Technology | 6 | December 15th 03 12:44 PM |
Jet-fueled Rocketry | Mike Miller | Technology | 3 | October 31st 03 08:42 PM |