On February 11, 1953, the Canadian newspaper Toronto Star published a sensational report that a fantastic vertical take-off and landing aircraft was being built at the Avro Canada plant in Molton, at the request of the military, with a speed of up to 2400 km / h. Five days later, under public pressure, the Canadian Department of Defense was forced to officially confirm the information, but refused to release the details of the project.
The first version of the apparatus, called Project Y, was by no means a plate. Frost considered the spearhead to be the ideal scheme for such an exotic vessel. In 1952, a wooden model of the Avro Ace deltoid wing was built. But this design had a lot of disadvantages, the main of which were poor visibility and instability in hovering during landing.
In 1953, Frost brought the project out of the impasse by starting construction of a disc-shaped craft, codenamed Avro Canada VZ-9A, with a centrally located jet engine of his own design and controlled nozzles distributed around the perimeter. The takeoff and landing of the car had to be very soft due to the formation of an air cushion near the surface. The climb was supposed to be accelerated with the help of the Coanda effect - the adhesion of the air jet from the engine to the curved surface of the wing when feeding through a narrow channel. The stream flowing around the wing creates a rarefaction above it, which carries the apparatus upward. The horizontal flight and maneuvering of the Frost disk ensured that the thrust vector was changed by the nozzles. The theoretical speed limit of the VZ-9A was estimated at 2400 km / h, and the calculated ceiling reached the lower layers of the stratosphere. The aviation of those times did not know such a thing yet.
