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DHC-6 Twin Otter

The DHC-6 Twin Otter is a 19-passenger utility airplane: an all-metal, unpressurized twin turboprop with a high wing and fixed landing gear, flown by a single pilot. The original DHC-6 type approval in Canada dates from the 1960s, and the Series 400, with Pratt and Whitney Canada PT6A-34 engines and an integrated Honeywell Primus flight deck, was certified by Transport Canada in 2010. Every series files under the ICAO code DHC6, along with the military CC-138 and UV-18 and the Vistaliner sightseeing conversion. This site lists the Series 400.

The variants side by side

VariantRangeSeatsLengthFirst flightStatusFlights seen
DHC-6 Twin Otter Series 400––51 ft 9 in (15.77 m)–In service66

Flights seen in US airspace in the last 14 days (public flight data).