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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, under the operating brand of DHC. The twin engine turbine-powered STOL 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 and the first flight took place 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 Air purchased the remaining tooling and type certificates for all out-of-production DHC aircraft, which gave it exclusive rights to manufacture new aircraft. The Series 400 Twin Otter production programme was started in 2008, giving the aircraft more powerful PT6A-34 engines, fully integrated Honeywell Primus Apex digital avionics suite and around 800 other modifications. Production was suspended in 2019 during the COVID pandemic.
June 2023 saw the launch of the DHC-6 Twin Otter Classic 300-G, the fifth generation of Twin Otter aircraft. It has the same rugged airframe, is propelled by P&W technology, but the lighter weight delivers increased payload range and decreased operating costs. It has an all-new cabin interior and the flight deck features a Garmin G1000 NXi fully integrated avionics suite.
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World fleet | Charter fleet | Typical pax | Cabin volume | Cruise | Range | Years | |
De Havilland DHC-6-100 | ●● | ● | ●● | ●●●●●●●●● | ●●●●●●● | ●●●●●● | ●●●●●●●●●● |
De Havilland DHC-6-200 | ●● | ● | ●● | ●●●●●●●●● | ●●●●●●●●●● | ||
De Havilland DHC-6-300 | ●●● | ●●● | ●● | ●●●●●●●●● | ●●●●●●● | ●●●●●● | ●●●●●●●●●● |
Viking DHC-6-400 | ●● | ●● | ●● | ●●●●●●●●● | ●●●●●●● | ●●●●●● | ●●●●●●●●●● |
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Why is this data obscured?26/07/2023 | EASA: 10082436. ●●●●●●●●●●
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20/06/2023 | EASA: 10082199. ●●●●●●●●●●
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24/04/2023 | EASA: 10069925. ●●●●●●●●●●
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13/04/2023 | EASA: 10040247. ●●●●●●●●●●
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18/05/2022 | EASA: 10079311. ●●●●●●●●●●
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18/03/2022 | EASA: 10042599. ●●●●●●●●●●
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18/02/2022 | EASA: 10078650. ●●●●●●●●●●
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10/02/2022 | EASA: 10078321. ●●●●●●●●●●
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