Chinese Engine Development

G

gelgoog

Lieutenant General
Registered Member
SamuraiBlue said:
Yes and the US has ample test data from the 60's, 70's and the 80's that they had collected during the various X-projects and others requiring hyper speed projectiles and flying objects.
The US designed the SR-71 supersonic planes in the 60's and flown the X-15 at speeds of Mach 6.7 in the late 60's as well.
Those data are now used to calculate simulations.
Like I posted within my original post, computer SIMULATION is used for the DESIGNING PHASE to weed out bad designs. This is the same with any other CFD projects in any industry.
Once they have reached the final stage (prototype) it is more constructive to just strap it on to a rocket and fly it at hyper sonic stage then testing it in a wind tunnel that can only give you a mili-second worth of data since that is about the only amount you can get from a hyper sonic wind tunnel. (They basically blast an explosive charge and direct the blast force towards the test piece to obtain the testing speeds so it cannot sustain speeds for more than a few mili-seconds)
Click to expand...

In that case explain me this.
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O

ougoah

Brigadier
Registered Member
Wait a sec so Dr. Combs says the US has several Mach 16 capable facilities and a member here earlier claimed there is a difference between the Chinese hypersonic tunnels and the US ones. So what is the difference? Also if the American ones are much smaller and cannot even offer 50 millisecond test run up to mach 16 for short duration impulse runs, is there literature to suggest or prove this? further, is there literature to suggest Chinese and/or Russian ones can run test on models?
 
LCR34

LCR34

Junior Member
Registered Member
Any news on WS13? the supposed engine to replace RD33/93. Some Chinese news media said PAF chose RD93MK over WS13 or something.
 
O

ougoah

Brigadier
Registered Member
Skywatcher said:
Glenn only goes up to Mach 7.

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8 foot diameter High Temperatue in Langley goes to Mach 7

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Mach 30 LENS-X runs for only two milliseconds

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Click to expand...

Someone with twitter should respond to Dr. Combs lol seems like he's way off with those hypersonic tunnels in the US. So the Chinese tunnel offers at least 25 times greater duration impulse.
 
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