Hawker Siddeley Harrier single lever added in the cockpit. For horizontal flight, the nozzles are directed rearwards by shifting the lever to the forward position; for short or vertical takeoffs and landings, the lever is pulled back to point the nozzles downwards. The Harrier has two control elements not found in conventional fixed-wing aircraft: the thrust vector and the reaction control system. The thrust vector refers to the slant of the four engine nozzles and can be set between 0° (horizontal, pointing directly backwards) and 98° (pointing down and slightly forwards). The 90° vector is normally deployed for VTOL manoeuvring. The reaction control
Sydney Camm aircraft built by Hawker before the Harrier, including what is probably his most significant aircraft after the Second World War, the Hawker Hunter. Camm was President of the Royal Aeronautical Society (RAeS) from 1954 to 1955. Since 1971 the RAeS has held the biennial Sir Sydney Camm Lecture in June, given by the current commander-in-chief of RAF Air Command. Camm retired as chief designer at Hawker in 1965 and was succeeded by John Fozard. He, however, remained on the board of its successor, Hawker Siddeley until his death. Before he died, Camm was planning the design of an aircraft to