Hawker Siddeley Harrier as VTOL and STOL manoeuvres (where the traditional lift and control surfaces are useless) requiring skills and technical knowledge usually associated with helicopters. Most services demand great aptitude and extensive training for Harrier pilots, as well as experience in piloting both types of aircraft. Trainee pilots are often drawn from highly experienced and skilled helicopter pilots. In addition to normal flight controls, the Harrier has a lever for controlling the direction of the four vectoring nozzles. It is viewed by senior RAF officers as a significant design success, that to enable and control the aircraft's vertical flight required only a
Hawker Siddeley Company. In 2006 the product line was sold to a new company to be known as "Hawker Beechcraft", owned by Onex Partners and Goldman Sachs. The Hawker Siddeley name was not used to brand aircraft until 1963. Prior to this, aircraft were produced under the name of the subsidiary company (e.g. Hawker Hurricane, Hawker Sea Hawk, Gloster Javelin, Gloster Meteor). First flight date is in parentheses. The Canadian subsidiary produced rail cars, transit vehicles and engines (aircraft and ship). Hawker Siddeley Hawker Siddeley was a group of British manufacturing companies engaged in aircraft production. Hawker Siddeley combined the legacies of