Random Photos

BobNH

Member
View attachment 303715

I went to a presentation by Brian Shul...one of the very few who piloted the SR-71 Blackbird, still the fastest air breathing jet plane in the world. It still has the ability to burn fuel at 90,000 feet, and he claims to have flown it at Mach 3.2, (and hinted higher; its actual top speed and ceiling is still classified) which is about 2455 mph...

It's titanium body begins to expand by several inches when it heats up doing 3 times the speed of sound, and it has expansion joints that accommodate this...and by design, it begins to leak fuel which apparently is not very flammable until it slows down and the fuselage cools, stopping the leaks...
Amazing pic, and incredible aircraft. The leaking info is a surprise though, as I had always understood it to leak on the ground because it sealed itself back up through heat expansion at speed, not the other way 'round.

Sent from my SM-N910V using Tapatalk
 
Top Bottom