Labels:text | aircraft | fin | military aircraft | poster OCR: LOCKHEED " BLACKBIRD " SR-71 The layout of the SR-71A high altitude strategic reconnaissance aircraft is unique, with the engines mounted on the delta wing and twin canted fins on Carrying a the engine nacelles. Carrying a crew of two in tandem, the aircraft can fly at up to Mach 3 and a ceiling of over 80,000 Ft. A variety of cameras and electronic sensors are carried. The aircraft has been in service with the USAF for over 25 years. U.S.AR FORCE The SR-71 is powered by twin JT110 reheated turbo jets and has a wingspan of 55 7" and an overall length of 107 5". MM (C) 1989 ( Source / Jane's )