From 1954 to 1957, Avro operated a free-flight testing program for the Arrow. The purpose was to obtain data on the design of the plane which couldn't be acquired through wind-tunnel testing.
The 1/8th scale models of the Arrow were mounted on Nike booster rockets and launched into the sky.
The rocket would then burn-out and separate from the model, allowing it to enter free-flight.
The models were tracked visually, as well as with radar, theodolites and film cameras.
In total, 11 models were tested - nine of which were fired from the Point Petre location known as the Canadian Armament Research and Development Establishment (CARDE).
The two remaining models were fired from an American research centre in Virginia.
At the time, the models were considered expendable by Avro, so no attempt was made to retrieve them.
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