Virgin Galatic Spaceship Two down in the Mojave.
About hypersonic aerothermodynamics complexity
Columbia's first flight might well have burned up ...
Space Shuttle Hypersonic Aerodynamic and Aerothermodynamic Flight Research and the Comparison to Ground Test Results
[...]
Center of Pressure Location
The STS-1 showed that significantly more body-flap deflection was required to trim the vehicle hypersonically at an alpha of 40 degrees than was presicted [...].
[...]
Center of Pressure Location
The STS-1 showed that significantly more body-flap deflection was required to trim the vehicle hypersonically at an alpha of 40 degrees than was presicted [...].
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So if an indicated airspeed of 130 was assumed someone could work out the altitude that the aircraft passed below mach one. That would set a lower bound to the altitude since the actual IAS might be lower.
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NTSB reports posted here http://www.ntsb.gov/news/events/Page...ship2_BMG.aspx
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This submission by Virgin for the executive summary is interesting reading.
NTSB Executive Summary of SpaceShipTwo Accident at Parabolic Arc
NTSB Executive Summary of SpaceShipTwo Accident at Parabolic Arc
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The last post sheds far more light than the NTSB preliminary report (slide show of all things!) from which I learn't nothing - other than detail related to permits which may, or may not, have been applied for.
Is it me, or are NTSB reports of late turning into a devalued product?
Is it me, or are NTSB reports of late turning into a devalued product?
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Virgin Galatic Spaceship Two down in the Mojave.
Yep the good old investigation from all angles is no more. Particularly GA reports are often so poorly written and jump to conclusions with some cheap 'learning points'.
What is the current status of SS2 "dash two" please?
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http://www.ntsb.gov/news/press-relea...R20150728.aspx
dash two
http://www.flightglobal.com/news/art...lactic-407537/
dash two
http://www.flightglobal.com/news/art...lactic-407537/
Last edited by henry_crun; 29th Jul 2015 at 14:23. Reason: add dash two link
