RCAF 1915 – 1939

Growth and Preparations of the Royal Canadian Air Force (1925–1939)

The Transformation from Civil Aviation to Military Readiness

The interwar years were a period of quiet evolution for Canada’s air power, a time when the newly established Royal Canadian Air Force (RCAF) sought to find its footing amid competing demands for civil and military aviation. Created in 1924, the RCAF spent its early years largely focused on civil aviation tasks such as aerial mapping, forest fire patrols, and mail delivery. However, as tensions rose in Europe during the 1930s, Canada began to shift its air force’s focus toward military readiness. By the late 1930s, this transformation had taken shape. With an expanded fleet, a stronger organizational framework, and a cadre of skilled personnel, the RCAF was on the cusp of becoming a formidable force in the impending global conflict.

Bruce Catton might have described this period as one of profound transition, a time when the RCAF, like Canada itself, grappled with its identity. “It was,” he might have written, “a time of preparation—measured, deliberate, and essential—when the seeds of future greatness were planted in the quiet fields of training grounds and hangars.”


A Foundation in Civil Aviation

In the years following its official establishment on April 1, 1924, the RCAF’s role was largely defined by its contributions to civil aviation. The federal government saw aviation as a tool for national development, particularly in addressing the challenges of Canada’s vast and remote geography. Early RCAF operations included aerial surveys of the Canadian North, forest fire patrols, and the transportation of mail to isolated communities.

Aircraft such as the Curtiss HS-2L flying boatde Havilland DH.4, and Avro 504K were the mainstays of the RCAF during this period. These machines, many of them surplus from the First World War, were rugged and reliable, making them ideal for the civil tasks assigned to the fledgling air force. Historian Larry Milberry, in Sixty Years: The RCAF and CF Air Command, notes that “the RCAF’s early focus on civil aviation provided invaluable experience in operations, logistics, and training, even as it left the service underprepared for military missions.”

Despite its civil focus, the RCAF maintained a small military component during the 1920s and early 1930s. Training programs for pilots and mechanics continued, ensuring that the air force retained a basic level of readiness. However, limited budgets and public disinterest in defence meant that the RCAF’s expansion during this period was modest.


The Strategic Shift Toward Military Preparedness

By the mid-1930s, the geopolitical landscape was shifting dramatically. The rise of Nazi Germany, Japan’s militarization, and Italy’s expansionist ambitions signalled the growing likelihood of a major conflict. In response, Canada began to re-evaluate its defence priorities, including the role of the RCAF. The British Royal Air Force (RAF) also played a significant role in influencing Canadian military aviation, providing both guidance and pressure for Canada to enhance its air capabilities.

The Aerodrome of Democracy, as Canada would later be called during the Second World War, began to take shape in these years. The RCAF expanded its training programs, upgraded its fleet, and established new bases across the country. By the late 1930s, the air force was transitioning from its predominantly civil focus to a force designed for military readiness. Historian Hugh Halliday describes this period as “the quiet revolution of Canadian air power, when preparation for peace gave way to preparation for war.”


The Aircraft of the Late 1930s

A key element of the RCAF’s transformation during this period was the acquisition of modern aircraft suitable for both training and combat. Several aircraft became central to the RCAF’s fleet in the years leading up to the Second World War:

  • Fairey Battle: A British-designed light bomber, the Fairey Battle was introduced to the RCAF in the late 1930s as part of Canada’s growing emphasis on military aviation. While it would later prove vulnerable in combat, the Battle provided valuable experience for Canadian pilots and crews during its early service.
  • Westland Lysander: Known for its versatility and short take-off and landing capabilities, the Lysander was primarily used for reconnaissance and army cooperation roles. Its reliability in diverse conditions made it a valuable asset for the RCAF’s preparations.
  • Lockheed Hudson: A twin-engine light bomber and reconnaissance aircraft, the Hudson was among the most advanced planes in the RCAF’s fleet at the time. Capable of long-range patrols, it became a key component of Canada’s coastal defence strategy.

These aircraft represented a significant improvement over the outdated planes of the 1920s, enabling the RCAF to modernize its operations and align with contemporary military standards.


Organizational Growth and Training

The expansion of the RCAF during the late 1930s was not limited to aircraft acquisition. The air force also focused on strengthening its organizational structure and training programs. New air bases were established across Canada, including key facilities in Trenton, Ontario, and Dartmouth, Nova Scotia. These bases served as hubs for pilot training, maintenance, and operational planning.

The RCAF’s training programs, modeled on those of the RAF, were instrumental in preparing Canada for the challenges ahead. Pilots were trained in advanced navigation, aerial gunnery, and bombing techniques, while mechanics and ground crews honed their skills in aircraft maintenance and repair. These efforts laid the groundwork for the RCAF’s pivotal role in the British Commonwealth Air Training Plan (BCATP), which would later become one of Canada’s most significant contributions to the Allied war effort.


The RCAF on the Eve of War

By 1939, the RCAF had grown into a force of over 4,000 personnel and more than 270 aircraft. While still modest compared to other Allied air forces, this represented a dramatic expansion from its early years. The RCAF’s dual focus on military and civil aviation during the interwar period had prepared it to play a versatile role in the impending conflict.

The air force’s transition to military readiness was underscored by its participation in joint training exercises with the RAF and other Allied forces. These exercises tested the RCAF’s ability to coordinate with international partners and operate under wartime conditions. As tensions in Europe reached a boiling point, the RCAF stood ready to defend Canada’s skies and contribute to the broader Allied effort.


Legacy and Significance

The period from 1925 to 1939 was one of transformation for the Royal Canadian Air Force. From its early focus on civil aviation to its preparation for war, the RCAF demonstrated remarkable adaptability and growth. The introduction of modern aircraft like the Fairey Battle, Westland Lysander, and Lockheed Hudson marked a turning point in its evolution, enabling the air force to transition from a peacetime service to a combat-ready force.

Bruce Catton might have captured the significance of these years with his characteristic blend of narrative and analysis, emphasizing the quiet determination of the individuals who built the RCAF: “In the workshops and airfields of a young nation, men and women worked with a sense of purpose, knowing that their efforts would one day shape the destiny of their country.”

The legacy of the RCAF’s interwar years is not merely one of preparation but of vision. The foresight to invest in training, infrastructure, and modern aircraft ensured that Canada would play a vital role in the Second World War, not only as a defender of its own territory but as a leader in Allied air power.


References

  1. Milberry, Larry. Sixty Years: The RCAF and CF Air Command, 1924–1984. Toronto: Canav Books, 1984.
  2. Halliday, Hugh. The Tumult in the Clouds: Canadians in the Air War, 1914–1945. Toronto: Lester & Orpen Dennys, 1989.
  3. Hatch, F.J. Aerodrome of Democracy: Canada and the British Commonwealth Air Training Plan, 1939–1945. Ottawa: Department of National Defence, 1983.
  4. Greenhous, Brereton, Stephen J. Harris, and William C. Johnston. The Crucible of War, 1939–1945: The Official History of the Royal Canadian Air Force, Volume III. Toronto: University of Toronto Press, 1994.
  5. Douglas, W.A.B. The Creation of a National Air Force: The Official History of the Royal Canadian Air Force, Volume II. Toronto: University of Toronto Press, 1986.
  6. Bliss, Michael. A Living Force: Canada’s Aviation Heritage. Toronto: McClelland and Stewart, 1991.
  7. Granatstein, J.L. Canada’s Army: Waging War and Keeping the Peace. Toronto: University of Toronto Press, 2002.
  8. Keshen, Jeffrey. “Preparing for War: The RCAF in the Late 1930s.” Canadian Historical Review, 81(2), 1998, pp. 212–234