With the success of the DHC-2 Beaver, DeHavilland Canada sought to expand their foothold into the Bushplane market by offering an aircraft with increased size and load capacity. This became the Otter. On floats, skis, or wheels, the Otter is truly a great bushplane.
All of the single engine Otters were built between 1951 and 1967 and were powered by an Pratt & Whitney Wasp [R-1340] 600 HP engine. The Wasp production ceased in 1960, so replacement engines have been sought out, as surplus engines waned. Most of the Otters that are still in service have been refitted with turboprop engines including: Pratt & Whitney Canada’s PT6A; Walter 601; and Garrett TPE331. These engines produce between 750 to 1000 horsepower.
This model depicts an Otter that was delivered to the US Navy in 1956. With the Navy it spent 10 years exploring Antarctica.
Afterwards it was transferred to Missouri National Guard, and then onto the Civil Air Patrol. Sold on the civil market in 1978 this airframe is still earning its keep as a Canadian bushplane registry: C-GGSL
With three pages of parts and photographic step-by-step instructions this model is rated at 2/5 for build difficulty.