[1] Educated at St George's College and Rhodes University in South Africa, Fletcher joined the Royal Rhodesian Air Force in 1939 and then transferred to the Royal Air Force.
258 Squadron and as Station Commander at RAF Belvedere in Southern Rhodesia before joining the Directing Staff RAF Staff College (Overseas) in Haifa.
[2] He was appointed Air Attaché in Oslo in 1953, a member of the Directing Staff at the Imperial Defence College in 1956 and Station Commander at RAF Abingdon in 1958.
38 Group in 1966, Vice-Chief of the Air Staff in 1967 and Controller of Aircraft in 1970 before retiring in 1973.
[2] In retirement he was a Director of Hawker Siddeley, Director of Corporate Strategy and Planning at British Aerospace and then a Member of the Airbus Industry Supervisory Board.