Complex sentence: The Orenda PS.13 Iroquois was an advanced turbojet engine for military use developed by the Canadian aircraft engine manufacturer Orenda Engines, part of the Avro Canada group.
Split into simpler sentences: The Orenda PS.13 Iroquois was an advanced turbojet engine designed for military use. It was developed by the Canadian aircraft engine manufacturer Orenda Engines, a part of the Avro Canada group.