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What is the max skin temperature?
I heard/read somewhere that the reason the max skin temp of the real thing was 127℃ was because it made the maths easier for the engineers. Which makes sense after a little thinking.
I also heard about an SR-71 crew who were buzzing around the Caribbean being alerted to "Civilian traffic at your altitude" and being "WTF?"
Happy
Re: What is the max skin temperature?
What, so _skintemp could be stored as a 7-bit uint?
So... if any part of Concorde's skin ever reached 128°C, it would instantly flash-freeze?
Re: What is the max skin temperature?
127+273=400. (K)
Re: What is the max skin temperature?
Maximum skin temperature of 127ºC was set by the properties of the aluminum alloy used on the Concorde. Sustained exposures to temperatures above that would weaken the alloy. Sustained Mach 3 flight requires use of Titanium or stainless steel.
IIRC, the SR-71's typical operating altitude was a few km higher than the Concorde.
Re: What is the max skin temperature?
There's an interview with the SR71 pilot in the Omegatau podcast.
He was describing how he was pootling around over Cuba doing SR71 type things, when asked to look out for civilian traffic at his flight level
His observation was that he was wearing a space suit and peeing in a tube, while these businessmen flew past in shirt sleeves eating dinner and sipping champagne.