Hawker Siddeley P.1127 Hawker Siddeley P.1127 The Hawker P.1127 and the Hawker Siddeley Kestrel FGA.1 are the experimental and development aircraft that led to the Hawker Siddeley Harrier, the first "vertical and/or short take-off and landing" (V/STOL) jet fighter-bomber. P.1127 development began in 1957, taking advantage of the Bristol Engine Company's choice to invest in the creation of the Pegasus vectored-thrust engine. Testing began in July 1960 and by the end of the year the aircraft had achieved both vertical take-off and horizontal flight. The test program also explored the possibility of use upon aircraft carriers, landing on in 1963. The first three
Aurora Flight Sciences carrying a payload: Aurora proposed three drones taking off separately then joining up in flight, to form an efficient flat wing at night, and folding into a Z for the best solar energy collection in daylight. In 2009, as Aurora has developed its own line of small vertical take-off UAVs known as the Aurora Goldeneye, the third variant of this family, the GoldenEye-80, was first flown publicly at Association for Unmanned Vehicle Systems International's Unmanned Systems North America trade show. On October 5, 2017 Boeing announced that it would be acquiring Aurora Flight Sciences. In April 2018, as DARPA allowed