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,
Power tower (power take-off) Power tower (power take-off) A power tower is a type of mechanical power take-off (or pto) which resides on an auxiliary transmission. It is mounted to the top of an auxiliary transmission (also known as a brownie or joey box) and its vertical housing has earned it the name power tower. Unlike traditional transmission or engine mounted power take-offs the power tower can provide the engine's full rated power output. It is commonly used to drive large winches or hydraulic pumps. Unlike the power take-off of an agricultural tractor, the attachment of any device to the power tower is usually