Point of departure 1942, Prime Minister MacKenzie-King tires of signing letters of condolence to the families of dead Canadian airmen. He is appalled at the high casualty rates suffered by Canadian air crew assigned to RAF Bomber Command ... as bad as Great War trench-fighters. Recognizing that this might lead to a second Conscription crisis, MK forbids the BCATP sending any more Canadian graduates to RAF Bomber Command. Canadian bomber crew members already in the training pipeline are assigned to RCAF Ferry Command or RCAF Coastal Command. By 1944, RCAF CC routinely re-fuel in Iceland as they close the mid-Atlantic gap to U-boats. U-boat casualties soar while merchant ship sinkings dwindle.
MK orders Victory Aircraft to quit building Lancaster bombers, so they switch to building Avro York freighters ... by the hundreds. York Mark 2 are powered by Pratt & Whitney R-1830
radial engines, while York Mark 3 grow nose-wheels and narrow cargo hatches under the tail. The definitive York Mark 4 gets P&W R-2800 engines and a full-width cargo ramp under the tail. Elsie May MacGill is rumoured to be "the power behind the throne" during late-model York production.
After Elsie left Canadian Car and Foundry (Thunder Bay, Ontario) almost goes bankrupt building Curtiss Helldivers, but recovers by building Budd Conestogas under license.
With so much trans-Atlantic flying experience, Trans Canada Airways soon dominates the growing North Atlantic trade, initially with North Stars, then Britannias and Comets.
Post war, Hawker-Siddeley still buys Victory Aircraft and builds CF-100 interceptors. CF-100 Mark 6 test-fire Velvet Glove rockets before development shifts to the CF-105 Arrow. The RCAF tones down its demands so that a small batch of Arrow Mark 1 fly with American engines, missiles, fire control systems and 3,000 psi hydraulic systems. Arrow Mark 2 are powered by Orenda Iroquois engines, while the Mark 4 fires Canadian-made missiles. The definitive Arrow Mark 6 uses a Canadian-Marconi fire control system to launch Canadian-made missiles. Australia, New Zealand and Iran buy interceptor and recce-equipped Arrows.
RCAF squadrons flying out of Prince Rupert B.C. and Goose Bay do such a good job of "greeting" Bear bombers that the Alaska Air National Guard invite them for frequent "exchange visits."
Meanwhile, RCAF Transport Squadrons get a handful of Jetliners, which they use for training navigators, radar operators and flying VIPs. A few millionaire executives also buy Jetliners for personnel transport. Jetliners improve with successive Marks until they dominate medium-haul airline routes in North America.
Meanwhile deHavilland of Canada introduce insect-resistant glues and glass fibre reinforcements to late-model Mosquitos. DHC sells a batch of nose-wheel equipped Mosquitos to the Chinese National Air Force. DHC builds fibreglass fuselage shells for the parent company's first three generations of jet fighters.
Post-war, DHC refuses to license the parent company to build Chipmunks but still sells almost a thousand to other Commonwealth air forces.
DHC-2 Beavers prove wildly popular with bush pilots, but are soon over-shadowed by Fairchild Huskies. Husky Mark 1s are disappointing, Robert Noordyn helps work out the bugs (most notably doubling the size of the vertical fin). Later Marks of Huskies roar off short strips and lakes behind war-surplus R-1830 engines. Noordyn is rewarded with lucrative sub-contracts when Fairchild gets too busy building C-119s and C-123 for the Korean War.
DHC struggles to sell significant numbers of Otters until they bolt a P&WC PT6A turboprop on the front, then sales climb faster than an over-loaded Otter climbing out of a steep mountain valley! DHC adds a nose-wheel and Canadian-Marconi moving-map display just as the over-night courier business takes off during the 1980s.
DHC sells a few Cariboos to the US Army. After they LAPES thousands of tons of ammo into Khe Sanh, the USMC says "If the Army does not buy Buffalos, we will." During the 1960s and 1970s, retired RCAF pilots and Canadian Airborne Regiment instructors do a booming business teaching Third World air forces how to operate their Buffalos.
Post war, Canadair builds several batches of North Stars (DC-4) but after a RR Merlin powered prototype catches fire , they concentrate on radial engines. North Stars are succeeded by Bristol Britanias on the Canadair production line. Only the first batch of Argus ASW airplanes get radial engines. Later Argus get turboprop engines and pressurized cabins to reduce transit times to the submarine hunting grounds out in the mid-Atlantic Ocean. So many RCAF Argus crew members write gay love letters to Russian submariners that some of those “love letters” fall into the hands of their wives and girlfriends back home in Russia. Soviet submariners’ (already miserable) divorce rates double and they have to frequently stop in mid-ocean to replenish vodka supplies. Australia, New Zealand and several NATO nations add Arguses to their Aero Naval squadrons.