NORTHROP YF-17 COBRA FLIGHT TESTS 1974 EDWARDS AIR FORCE BASE (SILENT) GG10261

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This silent footage showcases the Northrop YF-17 (nicknamed "Cobra") and primarily shows it during flight tests at Edwards Air Force Base. The YF-17 was a prototype lightweight fighter aircraft designed by Northrop aviation for the United States Air Force's Lightweight Fighter (LWF) technology evaluation program. The LWF was initiated because many in the fighter community believed that aircraft like the F-15 Eagle were too large and expensive for many combat roles. The YF-17 was the culmination of a long line of Northrop designs, beginning with the N-102 Fang in 1956, continuing through the F-5 family.

The first prototype (serial number 72-1569) was rolled out at Hawthorne on 4 April 1974; its first flight at Edwards AFB came on 9 June with Henry "Hank" Chouteau at the controls flying for 61 minutes reaching an altitude of 18,000 feet and a maximum speed of 610 miles per hour. The second YF-17 (s/n 72-1570) first flew on 21 August. Through 1974, the YF-17 competed against the General Dynamics YF-16. The two YF-17 prototypes flew 288 test flights, totaling 345.5 hours. The YF-17 attained a top speed of Mach 1.95, a peak load factor of 9.4 g, and a maximum altitude of over 50,000 ft (15,000 m). It demonstrated a maximum angle of attack of 68 degrees at 28 kn IAS.

Although it lost the LWF competition to the F-16 Fighting Falcon, the YF-17 was selected for the new Naval Fighter Attack Experimental (VFAX) program. In enlarged form, the F/A-18 Hornet was adopted by the United States Navy and United States Marine Corps to replace the A-7 Corsair II and F-4 Phantom II, complementing the more expensive F-14 Tomcat. This design, conceived as a small and lightweight fighter, was scaled up to the Boeing F/A-18E/F Super Hornet, which is similar in size and weight to the F-15 and ultimately replaced the F-14. A non-naval, export variant developed and marketed by Northrop, the F-18L failed to attract buyers; nevertheless, many air forces have operated the McDonnell Douglas F/A-18 as a purely land-based fighter.

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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com