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The DHC-6 Twin Otter is a high winged, unpressurised, 19 passenger utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The STOL, twin turboprop DHC-6 replaced the single engine DHC-3 Otter, retaining its double slotted trailing edge flaps and ailerons. It has a high rate of climb and can be fitted with floats, skis or tricycle landing gear, making it suitable for remote areas with difficult flying environments or short field rural airports, as well as passenger, cargo, medical evacuation and skydiving operations. Its reliability across all environments and minimal maintenance requirements gave rise to the saying that the only thing that can replace a Twin Otter is another Twin Otter.
Development began in 1964 with the first flight on 20 May, 1965. The first six aircraft were prototypes, designated Series 1. The initial production run consisted of Series 100 aircraft, powered by 550 shp Pratt & Whitney Canada PT6A-20 turboprop engines. Series 200 production began in 1968, with improvements to the STOL performance, a longer nose and a larger door to the rear baggage compartment.
Series 300 was introduced in 1969, with improvements to performance and payload thanks to more powerful 680 shp PT6A-27 engines. Production in Toronto by de Havilland Canada ended in 1988.
On 24 February, 2006 Viking purchased the type certificates from Bombardier Aerospace for all the out of production DHC aircraft, and also attained exclusive rights to manufacture new aircraft.
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| De Havilland DHC-6-300 | ●●● | ●●● | ●● | ●●●●●●●●● | ●●●●●●● | ●●●●●● | ●●●●●●●●●● |
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| January 6, 2021 | BAS won’t be on thin ice thanks to Centrik |
| August 17, 2020 | Twin Otters supported for Peruvian Amazon ops |
| April 13, 2020 | SAS offers safe transfers while teaming with Loganair |
| April 2, 2020 | Acorn receives Transport Canada go-ahead for Otter exhaust |
| March 23, 2020 | De Havilland and Viking manufacturing shuts down |
| February 23, 2020 | Seaplane delivery brings Trans Maldivian fleet to 57 |
| February 17, 2020 | Twin Otter passes milestone for Viking |
| February 5, 2020 | Canada adds aircraft to marine surveillance programme |
| December 16, 2019 | Optical option broadens scope of the Guardian |
| December 1, 2019 | Twin Otter pair commence Chad operations for Avmax |
| November 10, 2019 | Trans Maldivian opts for rust-busting door handles |
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