Incipient Thread Drift
AVRO Canada maintained a very close relationship with the "parent" Company in England. There would be a whole host of reasons for an Iroquois finding its way here. It seems unlikely that it was "a precursor to the Olympus" on time lines alone. The Bristol Olympus first ran in 1950 and first flew in '53. The Iroquois, on the other hand, completed detail design in May '54, first ran in December '55 and first flew in November '57. Interestingly, Charles Grinyer joined AVRO Orenda in Aprlil '52 to take charge of the Iroquois programme had previously been responsible certification of the Olympus at Bristol's