Harrier Jump Jet two systems are fully interlinked but air is not supplied to the reaction control valves during conventional wingborne flight. Harrier Jump Jet The Harrier, informally referred to as the Harrier Jump Jet, is a family of jet-powered attack aircraft capable of vertical/short takeoff and landing operations (V/STOL). Named after a bird of prey, it was originally developed by British manufacturer Hawker Siddeley in the 1960s. The Harrier emerged as the only truly successful V/STOL design of the many attempted during that era, despite being a subsonic aircraft, unlike most of its competitors. It was conceived to operate from improvised bases,
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.