The British Commonwealth Air Training Plan (BCATP), often referred to as simply "The Plan", was a large-scale multinational military aircrew training program created by the United Kingdom, Canada, Australia and New Zealand during the Second World War. The BCATP remains one of the single largest aviation training programs in history and was responsible for training nearly half the pilots, navigators, bomb aimers, air gunners, wireless operators and flight engineers who served with the Royal Air Force (RAF), Royal Navy Fleet Air Arm (FAA), Royal Australian Air Force (RAAF), Royal Canadian Air Force (RCAF) and Royal New Zealand Air Force (RNZAF) during the war.
The history of the Royal Canadian Air Force begins in 1914, with the formation of the Canadian Aviation Corps (CAC) that was attached to the Canadian Expeditionary Force during the First World War. It consisted of one aircraft that was never called into service. In 1918, a wing of two Canadian squadrons called the Canadian Air Force (CAF) was formed in England and attached to the Royal Air Force, but it also would never see wartime service. Postwar, an air militia also known as the Canadian Air Force was formed in Canada in 1920. In 1924 the CAF was renamed the Royal Canadian Air Force (RCAF) when it was granted the royal title by King George V. The RCAF existed as an independent service until 1968.
The Army Air Corps (AAC) is the aviation arm of the British Army, first formed in 1942 during the Second World War by grouping the various airborne units of the British Army. Today, there are eight regiments of the AAC, as well as two independent flights and two independent squadrons deployed in support of British Army operations around the world. Regiments and flights are located in the United Kingdom, Kenya, and Canada. Some AAC squadrons provide the air assault elements of 16 Air Assault Brigade, through Joint Helicopter Command.
RAF Andover is a former Royal Flying Corps and Royal Air Force station in England, 2 miles (3.2 km) west of Andover, Hampshire. As well as RFC and RAF units, units of the Aviation Section, U.S. Signal Corps, Royal Canadian Air Force, United States Army Air Forces, and the Air Transport Auxiliary were also stationed at the airfield.
438 "City of Montreal" Tactical Helicopter Squadron is a unit of the Royal Canadian Air Force. The squadron operates the Bell CH-146 Griffon tactical helicopter from the Hartland de Montarville Molson Hangar of CFB St. Hubert in Quebec, Canada. Its tasks include armed and unarmed tactical utility transport, training aircrew personnel in basic and advanced aviation tactics, technical training of groundcrew personnel and flight engineers and the periodic maintenance of CH-146 fleet aircraft. They also include as residual capabilities search and rescue, reconnaissance and support to federal, provincial and local law enforcement agencies. A "total force" unit composed of members of the Regular Force, and both full time and part time reservists, the squadron is part of 1 Wing at CFB Kingston Ontario.
No. 666 Squadron AAC (V) is a former squadron of the British Army's Army Air Corps (AAC). It was previously No. 666 Squadron RAF, a unit of the Royal Air Force during the Second World War and afterwards became a Royal Auxiliary Air Force (RAuxAF) squadron between 1 May 1949 and 10 March 1957.
Army Aviation Centre (AAC) Middle Wallop is a British Army airfield located near the Hampshire village of Middle Wallop, used for Army Air Corps training. The base hosts 2 (Training) Regiment AAC and 7 (Training) Regiment AAC under the umbrella of the Army Aviation Centre. 2 (Training) Regiment performs ground training; 7 (Training) Regiment trains aircrew on AAC aircraft after they complete basic training at RAF Shawbury.
The Taylorcraft Auster was a British military liaison and observation aircraft produced by the Taylorcraft Aeroplanes (England) Limited company during the Second World War.
Article XV squadrons were Australian, Canadian, and New Zealand air force squadrons formed from graduates of the British Commonwealth Air Training Plan (1939) during World War II.
No. 428 Squadron RCAF, also known as 428 Bomber Squadron, and 428 Ghost Squadron, was first a night bomber squadron of the Royal Canadian Air Force engaged in strategic bombing during World War II, based in Yorkshire. At the end of the war the squadron moved to Nova Scotia before being disbanded in September 1945. In 1954 the squadron was reformed as 428 All-Weather (Fighter) Squadron, before being again disbanded in 1961.
No. 663 Squadron was an air observation post (AOP) unit, manned with Polish Army personnel, which was officially formed in Italy on 14 August 1944. Numbers 651 to 663 Squadrons were air observation post units working closely with Army units in artillery spotting and liaison. A further three of these squadrons, 664–666, were manned with Canadian personnel. Their duties and squadron numbers were transferred to the Army with the formation of the Army Air Corps on 1 September 1957.
No. 666 Squadron RCAF was originally an RCAF air observation post (AOP) squadron formed during the Second World War. It was manned principally by Royal Canadian Artillery (RCA) and Royal Canadian Air Force (RCAF) personnel.
No. 665 "Air Observation Post" Squadron, RCAF was formed in England during the Second World War. It was manned principally by Royal Canadian Artillery (RCA) and Royal Canadian Air Force (RCAF) personnel, with select British artillery pilots briefly seconded to assist in squadron formation. Numbers 651 to 663 Squadrons of the RAF were air observation post units working closely with Army units in artillery spotting and liaison. A further three of these squadrons – Nos. 664, 665 and 666 – were RCAF AOP squadrons manned by Canadian and British personnel.
The 1st Medium Regiment, Royal Canadian Artillery was one of six Canadian medium artillery regiments that served in the European Theatre of World War II. Medium regiments were armed with 5.5-inch and 4.5-inch guns.
An air observation post (AOP) is an aeroplane or helicopter used in the role of artillery spotter by the British Army and Commonwealth forces. In this role, either the pilot of the aircraft or another crew member acts as an observer watching for targets on the ground, and/or as a forward observation officer directing the fire, by radio, of artillery on the ground.
No. 652 Squadron AAC is a squadron of the British Army's Army Air Corps (AAC). It was previously No. 652 Squadron RAF, a unit of the Royal Air Force during the Second World War and afterwards in Germany.
No. 661 Squadron AAC is a squadron of the British Army's Army Air Corps (AAC). It was formerly No. 661 Squadron, a Royal Air Force air observation post squadron associated with the Canadian 1st Army and later part of the Royal Auxiliary Air Force. Numbers 651 to 663 Squadrons of the RAF were air observation post units working closely with British Army units in artillery spotting and liaison. A further three of these squadrons, 664–666, were manned with Canadian personnel. Their duties and squadron numbers were transferred to the Army with the formation of the Army Air Corps on 1 September 1957.
664 Squadron AAC is a squadron of the British Army's Army Air Corps. It was formerly No. 664 Squadron, a Royal Air Force air observation post squadron associated with the Canadian 1st Army during the Second World War and later part of the Royal Auxiliary Air Force. Numbers 651 to 663 Squadrons of the RAF were air observation post units working closely with British Army units in artillery spotting and liaison. A further three of these squadrons, 664–666, were manned with Canadian personnel. Their duties and squadron numbers were transferred to the Army with the formation of the Army Air Corps on 1 September 1957.
Canada 
Royal Canadian Air Force and Royal Canadian Artillery 
