The supersonic masterpiece that vanished into thin air

Cultures · Published 3 October 2026 Swipe more like this →

In short: In 1957, Canada unveiled the CF-105 Arrow, a delta-winged interceptor capable of Mach 2 speeds. It was a marvel of engineering, yet months after its debut, the government ordered its total destruction. How did one of aviation's greatest achievements simply disappear?

Designed by Avro Canada to defend North American airspace from Soviet long-range bombers, the CF-105 Arrow was a technological leap forward. The aircraft featured a sophisticated delta-wing design, which provided the necessary lift at high altitudes and internal space for fuel and weaponry. To handle the immense physical forces of supersonic flight, engineers implemented a pioneering 4,000 psi hydraulic system and an 'artificial feel' mechanism to compensate for the lack of mechanical connection between the pilot's stick and the flight controls.

The program followed the ambitious Cook-Craigie plan, where the production line was established before the prototype phase was complete. This allowed for rapid development but introduced significant engineering risks. While the initial Mk. 1 models utilized the Pratt & Whitney J75 engine, the future of the fleet relied on the powerful Orenda Iroquois engine. However, the project faced mounting complexities, including the transition to the RCA-Victor Astra fire-control system and the replacement of various weapon systems.

The end came abruptly on 20 February 1959, when Prime Minister John Diefenbaker halted development. In a move that remains a subject of intense historical debate, the government ordered the destruction of the assembly lines, tooling, plans, and existing airframes just two months later. This decision effectively ended Avro Canada's involvement in the industry, scattering a highly skilled workforce and leaving behind a legacy of 'what might have been' in the annals of aerospace history.

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