: It could survey 100,000 square miles of territory per hour from its cruising altitude. Engineering & Design Innovations
: The aircraft used its fuel as a heat sink to cool the air-conditioning system and internal components before the fuel was burned. Legacy and Successors Aircraft Report: Lockheed SR-71 Blackbird LockheedSR71Blackbird.rar
: Its Pratt & Whitney J58 engines acted as a turbojet-ramjet hybrid, becoming most efficient at speeds above Mach 3. : It could survey 100,000 square miles of
