De Havilland TWIN OTTER

The Twin Otter was derived from deHavilland’s successful single Otter design. It would be a bit simplistic to say it was merely a “twin Otter” but it did share many similarities to its smaller single engine brother. Depending upon the specific model, Twin Otters seated between 15 and 22 people. All models were powered by the P & W PT-6A series turboprop, which is a legendary engine in its own right. The Twin Otter typically cruised around 150 mph and, for a plane its size, could get in and out of remarkably tight strips. The design was an instant hit in the bush as it replaced many antiquated designs (such as the DC-3) that never were really designed for the bush in the first place. The only thing, other than size and acquisition cost, that initially limited its use in the bush was availability of jet fuel, with some remote areas not having any jet fuel supplies at all. In modern times the situation has come full circle, now piston fuel is becoming more and more scarce in remote locations. This is one of the reasons calls for resumed production are often heard.

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AURIGNY AIR SERVICE Ltd - The Alderney Airport, Channel Islands, 1982.
CC-138 TWIN OTTER, 440 Squadron, Canadian Armed Forces, CFB Edmonton, Alberta, Canada 1981.