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Musk remains on Advisory Council



 
 
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  #31  
Old February 13th 17, 02:54 AM posted to sci.space.policy
William Mook[_2_]
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Default Musk remains on Advisory Council

If hilarious that you think me admitting a mistake and correcting is is making excuses. hahaha..
  #32  
Old February 13th 17, 07:14 AM posted to sci.space.policy
Fred J. McCall[_3_]
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Default Musk remains on Advisory Council

William Mook wrote:

Consider the Lockheed AH-56 Cheyenne - a compound helicopter configuration that gave the aircraft tremendous range and speed for a helicopter. It was also heavily armed!


It also never entered production for good and sufficient reasons. Do
you have ANY point here other than MookJacking another thread for no
applicable reason? If you do, it certainly isn't obvious.


Specifications (AH-56A)
Data from Jane's Aircraft and WarbirdTech AH-56A
General characteristics

Crew: Two; one pilot, one copilot/gunner (front seat)
Length: 54 ft 8 in (16.66 m)
Rotor diameter: 51 ft 3 in (15.62 m)
Height: 13 ft 8.5 in (4.18 m)
Empty weight: 12,215 lb (5,540 kg)
Loaded weight: 18,300 lb (8,300 kg)
Max. takeoff weight: 25,880 lb (11,740 kg)
Rotor systems: 4 blades on main rotor, 4 blades on tail rotor, 3 blades on pusher propeller
Powerplant: 1 General Electric T64-GE-16 turboshaft, 3,925 shp (2,930 kW)


Note that the following numbers are largely bull****, since it was
never made to operate properly.


Performance

Maximum speed: 212 knots (244 mph, 393 km/h)
Cruise speed: 195 knots (225 mph, 362 km/h)
Range: 1,063 nmi (1,225 mi, 1,971 km)
Service ceiling: 20,000 ft (6,100 m)
Rate of climb: 3,000 ft/min (15.23 m/s)
Armament

Guns:
1 nose turret with either an M129 40 mm (1.57 in) grenade launcher or an XM196 7.6251mm machine gun and
1 belly turret with an XM140 30 mm (1.18 in) cannon
Hardpoints: 6
Rockets: 2.75 in (70 mm) FFA rockets
Missiles: BGM-71 TOW missiles


See the AH-64 for what actually got built.


There are 10 Cheyennes floating around, and with a 375 unit order cancelled, lots of spare parts and pieces as well.


No, there aren't. There are FOUR (not 10) Cheyennes left in
existence, none in anything close to flyable condition. Three are
static displays and the fourth is in a museum. Nobody keeps spare
parts around for half a century, so there are not "lots of spare parts
and pieces". In point of fact, there probably were no parts for that
"375 unit order" other than a few long lead time items, since that
order was never funded.


Boeing's unmanned Little Bird was brought to flight readiness in a matter of months. It should be possible to do the same with Cheyenne, but with better computing platforms, greater capabilities! Including automatic weapon control! Which could be useful for defence as well as collecting unpaid bills!

Furthermore, the GE T-64 turboshaft engine the powers the Cheyenne, has already been modified to operate with hydrogen fuel!


Perhaps THE SAME could be done if there was any reason to do so,
although the AH-56 had serious handling problems even with a man in
the cockpit. I love how you assume all the extra work (which
essentially amounts to an all new helicopter with the exception of the
basic airframe) just happens by magic.


https://www.netl.doe.gov/publication...y/Anderson.pdf

For anyone familiar with the Breguet Range Equation you know using a fuel with 141.8 MJ/kg specific energy to replace the 42.6 MJ/kg jet fuel, increases payload and/or range, with the hardpoints on the Cheyenne its easy to see a zero boil off cryogenic tank could easily be added to the system, and range could be increased to 6,000 km and more - with the same payload as now. Getting rid of the more expensive missile systems, and maintaining an automatic cannon, still makes this a formidable unmanned drone for exotic delivery missions!


And of course you've included the difference in fuel density between
kerosene and LH2 into your calculations, along with increased weight
and drag from the magical zero-boil-off tank?

And what's the point of all this, again?


--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn
  #33  
Old February 13th 17, 07:15 AM posted to sci.space.policy
Fred J. McCall[_3_]
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Posts: 8,870
Default Musk remains on Advisory Council

William Mook wrote:


If hilarious that you think me admitting a mistake and correcting is is making excuses. hahaha..


Where'd you admit you made a mistake, Mookie? You just tried to talk
your way out of it.


--
"Ordinarily he is insane. But he has lucid moments when he is
only stupid."
-- Heinrich Heine
  #34  
Old February 14th 17, 08:19 AM posted to sci.space.policy
Fred J. McCall[_3_]
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Posts: 8,870
Default Musk remains on Advisory Council

JF Mezei wrote:

Another possibility with Trump is that he will naively cut "pork" to
companies, and claim credit for saving taxpayers bilions. (He has done
so for the F35 by threatening to cut program and then announced the
manufacturer sharpened its pencil, and Trump took credit for saving
billions from American taxpayers.

So, when Trump is made aware of SLS, the same thing may happen.
Threatens to cut it alltogether, then the main contractors come back
with cost reductions that allow Trump to claim victory, but as a result,
SLS isn't killed.

Meanwhile, other NASA projects that are very cost efficient and can't
cut may get the axe because they can't give Trump what he wants: let him
take credit for cutting costs.


And monkeys might fly out my butt...


--
"Ignorance is preferable to error, and he is less remote from the
truth who believes nothing than he who believes what is wrong."
-- Thomas Jefferson
  #35  
Old February 14th 17, 03:05 PM posted to sci.space.policy
Bob Haller
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Posts: 3,171
Default Musk remains on Advisory Council

looks like trump wouldnt last as president. he is another dirty politician.......

resign or be fired

  #39  
Old February 17th 17, 04:07 PM posted to sci.space.policy
Bob Haller
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Posts: 3,171
Default Musk remains on Advisory Council



Bobbert, take your political ravings and shove them up your ass. They
don't belong here.



hey fred did you see trumps news conference? donald is insane. his adminstration isnt a well oiled machine.

he is utting our entire world at risk

he wants to restart the draft and put ground troops in syria. plus the wall.

there will be no money left for space exploration
  #40  
Old February 17th 17, 09:33 PM posted to sci.space.policy
Fred J. McCall[_3_]
external usenet poster
 
Posts: 8,870
Default Musk remains on Advisory Council

bob haller wrote:



Bobbert, take your political ravings and shove them up your ass. They
don't belong here.



hey fred did you see trumps news conference? donald is insane. his adminstration isnt a well oiled machine.


I saw enough of it to see that he's a lot more sane than, say, YOU.
Which part of "Take your political ravings and shove them up your ass.
They don't belong here." was it that left you confused?


he is utting our entire world at risk


You're an utting idiot.


he wants to restart the draft


The only proposals I've seen to restart the draft have come from
DEMOCRATS. Cite?


...and put ground troops in syria.


You'd rather hand it back to Assad and Turkey?


plus the wall.


How many illegals are you putting up, Bobbert?


there will be no money left for space exploration


Non sequitur. Additionally, the fact that money is spent on space and
money is spent on other things does NOT make this an appropriate forum
for discussing whatever bug happens to have currently crawled up your
butt.


--
"Ordinarily he is insane. But he has lucid moments when he is
only stupid."
-- Heinrich Heine
 




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