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SR-71 Speed Check


Doc Shapiro

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A useless piece of trivia.   Apparently what limited the max speed of the SR-71 was the temperature of the epoxy holding that held the glass in the canopy.

 

I think it is safe to say having the epoxy melt and the canopy glass come loose at Mach 3+ would fall into the category of having a "very bad day".

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Met a Habu (what they were called on Okinawa, not Blackbird) pilot one time who claimed that the inside of the cockpit glass got so hot that a flight glove would be "welded" to it.  Someone asked if friction could really do that and he was told "I don't know, but air compression can at that speed."

 

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Have you seen the account of the triangular-shaped hypersonic aircraft that Lockheed-Martin built for the movie Top Gun Maverick?  It seems they parked it outside and the Chinese thought it was real.  I also recall a story that one of the commercial earth-observation satellites caught an image of a triangular-shaped "something" under a cover, either at L-M or Area 51.  I wonder if that is what both saw? Puts one in mind of the rubber tanks that were placed around England just prior to D-Day... :ph34r:

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