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
Diamond D-Jet financing from an unnamed source and started recalling its workers, indicating that it would build an extra test aircraft and resume flight testing. Flight testing started again in early September 2011. During February 2013, having not located further operational funding after the failed sale of the company to Medrar in 2011, the company laid off the majority of its Canadian staff and suspended work on the D-Jet program, indicating that the company needed to reorganize. By May 2014, work on the D-Jet remained suspended, but the project had not been cancelled. The program remained suspended in February 2016. Following the