The Orenda PS.13 Iroquois is an advanced turbojet engine that was designed for military use. It was developed by the Canadian aircraft engine manufacturer Orenda Engines, a part of the Avro Canada gro
Orenda Iroquois at the Canada Aviation Museum in Ottawa.
The de Havilland PS.23 or PS.52 Gyron, originally the Halford H-4, was Frank Halford's last turbojet design while working for de Havilland. Intended to outpower any design then under construction, the
de Havilland Gyron at the de Havilland Aircraft Museum