sr 72 blackbird wikipedia?Advertisement
The Lockheed SR-71 "Blackbird" was an advanced, long-range, Mach 3+ strategic reconnaissance aircraft. It was developed as a black project from the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk Works division. Clarence "Kelly" Johnson was responsible for many of ... - read more
The Lockheed Martin SR-72 is a conceptualized unmanned, hypersonic aircraft intended for intelligence, surveillance and reconnaissance proposed by Lockheed Martin to succeed the retired SR-71 Blackbird. - read more
Please vote if the answer you were given helped you or not, thats the best way to improve our algorithm. You can also submit an answer or check other resources.