SamuraiBlue
Captain
You can't simulate badly installed panels.
Chinese Hypersonic Developments (HGVs/HCMs)
- Thread starter A.Man
- Start date
You can't simulate badly installed panels.
shen
Senior Member
Skunk Work can't install panels? Twice?
AssassinsMace
Lieutenant General
Yet the US bans the sale of supercomputers and their components to China for fear of this very thing.
Either way, you have to conduct real physical tests for a reason.
TerraN_EmpirE
Tyrant King
Setting the record straight, the US has conducted at least 7 live hyper sonic flights in the forms of X43,X51 and HVT 2.
The two HVT2 hyper sonic glider tests were both terminated by the flight computers and both vehicles landed in the pacific.
X51 suffered the closest to panel failure once when one of its flight control surfaces failed to deploy, it also on another case failed to transition to JP7 from ethylene, failed to properly operate its air intake.... The final test in 2013 however successfully completed the set test.
The two HVT2 hyper sonic glider tests were both terminated by the flight computers and both vehicles landed in the pacific.
X51 suffered the closest to panel failure once when one of its flight control surfaces failed to deploy, it also on another case failed to transition to JP7 from ethylene, failed to properly operate its air intake.... The final test in 2013 however successfully completed the set test.
shen
Senior Member
Terran, I get what you are saying. my point was simply that computer simulation can't completely replace physical test.
about skin peeling off.
TerraN_EmpirE
Tyrant King
Well on that Shen I get another correction. NASA has a Hypersonic wind tunnel.
The Nasa Langley research center 8 -Foot High Temperature Tunnel
The Langley 8-Foot High Temperature Tunnel (8-Ft HTT) is a combustion-heated hypersonic blowdown-to-atmosphere wind tunnel that provides simulation of flight enthalpy (relationship of an object, its environment, and energy) for Mach numbers of 4, 5, and 7 and Reynolds numbers from 0.3 x 106 to 5.09 x 106 per foot, depending on the Mach number. The test section will accommodate air-breathing hypersonic propulsion systems and structural and thermal protection system components. A radiant heater system can be used to simulate ascent or re-entry heating profiles.
The Nasa Langley research center 8 -Foot High Temperature Tunnel
The Langley 8-Foot High Temperature Tunnel (8-Ft HTT) is a combustion-heated hypersonic blowdown-to-atmosphere wind tunnel that provides simulation of flight enthalpy (relationship of an object, its environment, and energy) for Mach numbers of 4, 5, and 7 and Reynolds numbers from 0.3 x 106 to 5.09 x 106 per foot, depending on the Mach number. The test section will accommodate air-breathing hypersonic propulsion systems and structural and thermal protection system components. A radiant heater system can be used to simulate ascent or re-entry heating profiles.
shen
Senior Member
yes, I agree. it would be more correct to say China has the largest hypersonic wind tunnel.
and the fact that wind tunnels are still needed supports the point that physical tests are still necessary.
To blackstone and counterprime, let's all try to keep away from the ideological stuff out of this thread... blackstone, I really do not think it is necessary to bring up Mao or other political or controversial figures or statements if you are merely trying to express skepticism. If you broaden your position too much, people are going to be justified in calling excessively ambitious claims out, and that tends to derail threads.
Skywatcher
Captain
The Chinese hypersonic tunnel also goes to higher speeds, I think.