To survive the extreme heat generated by friction at Mach 3+, the aircraft required radical design solutions:
: Its Pratt & Whitney J58 engines acted as a turbojet-ramjet hybrid, becoming most efficient at speeds above Mach 3.
The Blackbird was engineered to outrun surface-to-air missiles by cruising at the edge of space. : Mach 3.3 (2,193 mph / 3,529 km/h). Service Ceiling : 85,000 feet (approx. 26,000 meters).
To survive the extreme heat generated by friction at Mach 3+, the aircraft required radical design solutions:
: Its Pratt & Whitney J58 engines acted as a turbojet-ramjet hybrid, becoming most efficient at speeds above Mach 3. LockheedSR71Blackbird.rar
The Blackbird was engineered to outrun surface-to-air missiles by cruising at the edge of space. : Mach 3.3 (2,193 mph / 3,529 km/h). Service Ceiling : 85,000 feet (approx. 26,000 meters). To survive the extreme heat generated by friction