Questions tagged [sr-72]

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4
votes
3answers
532 views

Is there currently any heat shielding and paint for speeds of up to Mach 6?

The Blackbird SR71 could travel faster than Mach 3 but its speed was limited to prevent its skin from melting. Its newer variant is said to be named the SR72 and it and other, civilian hypersonic ...
5
votes
2answers
419 views

SR-72 — is the speed reported in this story wrong?

I was just reading this story from Sky news and reported the following Lockheed Martin says it is close to developing a military plane that flies at Mach 6 - six times the speed of sound, which ...
3
votes
2answers
486 views

Is there an “SR-72” under development?

The Extreme Tech website reports that Lockheed Martin’s Skunk Works has confirmed that it is developing the SR-72 spy plane. The successor to the SR-71 Blackbird, which was capable of Mach 3.5, ...
4
votes
1answer
4k views

What advantages would a triangular shaped spy plane have over a an SR-71?

This is a picture of the supposed SR-72 Aurora. What kind of advantages would this have over the SR-71, in terms of its triangle design? Paper airplanes have the same shape, and fly really well. The ...