The Royal Canadian Air Force (RCAF; French: Aviation royale canadienne - ARC, lit. 'Canadian royal aviation') is the air and space force of Canada. Its role is to "provide the Canadian Forces with relevant, responsive and effective airpower". The RCAF is one of three environmental commands
within the unified Canadian Armed Forces. As of 2020, the Royal Canadian Air Force consists of 12,074 Regular Force and 1,969 Primary Reserve personnel, supported by 1,518 civilians, and operates 258 manned aircraft and nine unmanned aerial vehicles. Appointed in 2025, Lieutenant-General Jamie Speiser-Blanchet is the current Commander of the Royal Canadian Air Force and Chief of the Air Force Staff.
The Royal Canadian Air Force is responsible for all aircraft operations of the Canadian Forces, enforcing the security of Canada's airspace and providing aircraft to support the missions of the Royal Canadian Navy and the Canadian Army. The RCAF is a partner with the United States Air Force in protecting continental airspace under the North American Aerospace Defense Command (NORAD). The RCAF also provides all primary air resources to and is responsible for the National Search and Rescue Program.
The RCAF traces its history to the Canadian Air Force, which was formed in 1920. The Canadian Air Force was granted royal sanction in 1924 by King George V to form the Royal Canadian Air Force. In 1968, the RCAF was amalgamated with the Royal Canadian Navy and the Canadian Army, as part of the unification of the Canadian Forces. Air units were split between several different commands: Air Defence Command (ADC; interceptors), Air Transport Command (ATC; airlift, search and rescue), Mobile Command (tactical fighters, helicopters), Maritime Command (anti-submarine warfare, maritime patrol), as well as Training Command (TC).
In 1975, some commands (ADC, ATC, TC) were dissolved, and all air units were placed under a new environmental command called simply Air Command (AIRCOM; French: Commandement aérien). Air Command reverted to its historic name of "Royal Canadian Air Force" in August 2011.
The Royal Canadian Air Force has served in the Second World War, the Korean War, the Persian Gulf War, as well as several United Nations peacekeeping missions and NATO operations. As a NATO member, the force maintained a presence in Europe during the second half of the 20th century.
The Canadian Air Force (CAF) was established in 1920 as the successor to a short-lived two-squadron Canadian Air Force that was formed during the First World War in Europe. Wing Commander John Scott Williams was tasked in 1921 with organizing the CAF, handing command over later the same year to Air Marshal Lindsay Gordon. The new Canadian Air Force was a branch of the Air Board and was chiefly a training militia that provided refresher training to veteran pilots. Many CAF members also worked with the Air Board's Civil Operations Branch on operations that included forestry, surveying and anti-smuggling patrols.
In 1923, the CAF became responsible for all flying operations in Canada, including civil aviation. In 1924, the Canadian Air Force, was granted the royal title, becoming the Royal Canadian Air Force (RCAF). Most of its work was civil in nature, with forest patrols of the northwest a major part of its operations; however, in the late 1920s other agencies took up most civil tasks, with the notable exception of aerial photography surveys, and the RCAF evolved into more of a military organization. After budget cuts in the early 1930s, the air force began to rebuild.
During the Second World War, the RCAF was a major contributor to the British Commonwealth Air Training Plan and was involved in operations in the United Kingdom, Europe, the north Atlantic, North Africa, southern Asia, and with home defence. Eight thousand, eight hundred and sixty-four Americans came north to volunteer for the RCAF and over 850 died in action. By the end of the war, the RCAF had become the fourth largest Allied air force.
During World War II the RCAF was headquartered at a six-storey office building at 20-23 Lincoln's Inn Fields (built 1937), London. A commemorative plaque can be found on the outside of the building.
After the war, the RCAF reduced its strength. Because of the rising Soviet threat to the security of Europe, Canada joined NATO in 1949, and the RCAF established No. 1 Air Division RCAF consisting of four wings with three fighter squadrons each, based in France and West Germany. In 1950, the RCAF became involved with the transport of troops and supplies to the Korean War; however, it did not provide RCAF combat units. Members of the RCAF served in USAF units as exchange officers and several flew in combat. Both auxiliary and regular air defence squadrons were run by Air Defence Command. At the same time, the Pinetree Line, the Mid-Canada Line and the DEW Line radar stations, largely operated by the RCAF, were built across Canada because of the growing Soviet nuclear threat. In 1957, Canada and the United States created the joint North American Air Defense Command (NORAD). Coastal defence and peacekeeping also became priorities during the 1950s and 1960s.
In 1968, the Royal Canadian Navy, Royal Canadian Air Force and Canadian Army were amalgamated to form the unified Canadian Forces. This initiative was overseen by the Defence Minister, Paul Hellyer. The controversial merger maintained several existing organizations and created some new ones: In Europe, No. 1 Canadian Air Group, operated Canadair CF-104 Starfighter nuclear strike/attack and reconnaissance under NATO's Fourth Allied Tactical Air Force; Air Defence Command: operated McDonnell CF-101 Voodoo interceptors, CIM-10 Bomarc missiles and the SAGE radar stations within NORAD; Air Transport Command: provided strategic airlift for the NATO and UN peacekeeping missions; and Training Command. Aviation assets of the Royal Canadian Navy were combined with the RCAF Canadair CP-107 Argus long-range patrol aircraft under Maritime Command. In 1975, the different commands, and the scattered aviation assets, were consolidated under Air Command (AIRCOM).
In the early 1990s, Canada provided a detachment of CF-18 Hornets for the air defence mission in Operation Desert Shield. The force performed combat air patrols over operations in Kuwait and Iraq, undertook a number of air-to-ground bombing missions, and, on one occasion, attacked an Iraqi patrol boat in the Persian Gulf.
In the late 1990s, Air Command's CF-18 Hornets took part in the Operation Allied Force in Yugoslavia, and in the 2000s, AIRCOM was heavily involved in the Afghanistan War, transporting troops and assets to Kandahar. Later in the decade-long war, AIRCOM set up a purpose-specific air wing, Joint Task Force Afghanistan Air Wing, equipped with several CH-146 Griffon and CH-147 Chinook helicopters, CC-130 Hercules, CU-161 Sperwer and leased CU-170 Heron UAVs in support of the Canadian Forces and ISAF mission. The wing stood down on 18 August 2011.
From 18 March to 1 November 2011, the RCAF was engaged in Operation Mobile, Canada's contribution to Operation Unified Protector in Libya. Seven CF-18 Hornet fighter aircraft and several other aircraft served under Task Force Libeccio as part of the military intervention.
On 16 August 2011, the Government of Canada announced that the name "Air Command" was being changed to the air force's original historic name: Royal Canadian Air Force (along with the change of name of Maritime Command to Royal Canadian Navy and Land Force Command to Canadian Army). The change was made to better reflect Canada's military heritage and align Canada with other key Commonwealth countries whose military units use the royal designation.
The RCAF adopted a new badge in 2013, which is similar to the pre-unification RCAF badge (although placed in the modern frame used for command badges). The Latin motto of Air Command – Sic itur ad astra – which was the motto of the Canadian Air Force when first formed after the First World War (before it became the Royal Canadian Air Force in 1924) was retained. Though traditional insignia for the RCAF was restored in 2015, there has been no restoration of the traditional uniforms or rank structure of the historical service (apart from a rank of "aviator", which replaced that of "private" in 2015).