The General Dynamics F-16XL was a derivative of the F-16 Fighting Falcon, with a cranked-arrow delta wing. It was originally conceived as a technology demonstrator, later entered the United States Air Force’s (USAF) Enhanced Tactical Fighter (ETF) competition but lost to the F-15E Strike Eagle. Several years after the prototypes were shelved, they were turned over to NASA for additional aeronautical research. Both aircraft are currently stored at Edwards AFB.
Today in History – July 26, 1998 – Burt Rutan launches first flight of the Scaled Composites Proteus
26 July 1998 – Burt Rutan’s “Scaled Composites Model 281 Proteus is a tandem-wing high-altitude long endurance aircraft designed by Burt Rutan to investigate the use of aircraft as high altitude telecommunications relays. The Proteus is a multi-mission vehicle able to carry various payloads on a ventral pylon. The Proteus has an extremely efficient design,