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
Tyrolean Jet Services from Innsbruck to Vienna and Zurich. In the first year in business, 38,500 passengers took the flight, which justified a second machine from May 1981. In 1985 Tyrolean Airways operated a twin-engine de Havilland Canada Dash 8 with 37 seats and the company was renamed Tyrolean Jet Service. Tyrolean Air Ambulance was divided into the Tyrol Air Ambulance and the helicopter division Heliair which was split off. In 1988 Tyrolean became a public company and Leipnik Lundenburger AG acquired 25%. ÖAMTC acquired Heliair and in 1995, Austrian Airlines acquired the scheduled flight operations. Thereafter TJS focused exclusively on business travel.