De Havilland Twin Otter
Description
Role	Transport
Crew	2
First Flight	may 20 1965
Entered Service
Manufacturer	de Havilland
Dimensions
Length	49 ft 6 in	15.1 m
Wingspan	65 ft 0 in	19.8 m
Height	19 ft 6 in	5.9 m
Wing area	420 ft²	22.57 m²
Weights
Empty	5850 lb	2653 kg
Loaded	10 500 lb	4763 kg
Maximum takeoff	lb	kg
Capacity
Powerplant
Engines	2 PT6A-20 turboprops
Power	578 shp	431 kW
Performance
Maximum speed	140 knot	297 km/h
Ferry range	771 miles	1427 km
Service ceiling	ft	m
Rate of climb	ft/min	m/min
Wing loading	lb/ft²	kg/m²
Avionics

The DHC-6 Twin Otter is the most successful aircraft program in Canada's history. Development of the aircraft began in 1964. The first aircraft produced were the Series 100s. Later the 200s improved the STOL performance as well as adding a longer nose and reconfigured rear storage compartment. The 300s further increased performance by adding more powerful PT6A-27 engines.

Twin Otters can have their landing gear replaced with floats or skis, and are popular as bush planes in Alaska and northern Canada.

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