The CHAIRMAN, in introducing the first of the two lecturers, said that Redifon, Ltd, to whom Mr HILL was Sales Manager, were very active in connection with the use of the flight simulator as a training aid to pilots Mr Hill was very well known to members, being a Founder Member and a Vice-President of the Association For many years he had been Chairman of the Council He was Sales Manager to the Flight Simulator Division of Redifon, Ltd, and he had held a pilot's licence for both fixed and rotary wing aircraft since 1936 He was commissioned in the General Duties branch of the Royal Air Force in 1941, and served with 1448 Flight and 529 Squadron (Meteorological Flight) After the war he was Air Adviser to British Electric Traction, Ltd, from 1947 to 1950, and he had the distinction of holding the Royal Aero Club's certificate No 8 He was well qualified to speak on this important topic