Even more Top Secret than the Lockheed SR-71, the D-21 drone was a promising Cold War idea that could have eliminated the need for manned overflights, ...

During a fly-over request in England, the SR-71 Blackbird spy plane was able to hit speeds as low as 160 knots (equivalent to ...

Yes, the SR-72 Darkstar gets a lot of attention as the next spy plane. However, years back, the SR-91 was getting some of the ...

Later, this was upgraded to the S1030 Full Pressure Suit. The older S901 evolved through several improved models into the S1030 suit, which was developed in the 1970s for SR-71 Blackbird operations.

The SR-71 Blackbird flies at extremely high speeds and altitudes, adding Aluminum to its tires can help to prevent damage ...