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DHC-3 Otter
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DHC-3 Otter

DHC-3 Otter

 

DHC-3 Otter (Otter) is a multipurpose aircraft short takeoff and landing (STOL), developed by the Canadian company «de Havilland Canada». This plane is based on DHC-2 BeaverAnd it is designed to perform the same tasks as its predecessor, but it has lengthened fuselage, larger scale and area of ​​the wing, as well as an increase of nearly doubled capacity. DHC-3 Otter can accommodate in its interior 11 seats. The transport-cargo variant it is able to carry up to 1020 kilogram payload.

Design of aircraft DHC-3 Otter began in late 1940-ies. Initially, the project was known as the «King Beaver», but was later renamed as «Otter». The plane has the shape of an all-metal monoplane with a fuselage with high location right wing to double-slotted flaps. The tail unit of the aircraft has a cross look. The chassis of the aircraft, as well as at DHC-2, may have a wheel, float or ski base, which allows the use of aircraft with different runways. In DHC-3 Otter, was installed piston radial engine R-1340-S1H1-G / S3H1-G Wasp power 600 hp, manufactured by Pratt & Whitney.

DHC-3 Otter fly

Its first flight DHC-3 12 made in December 1951 years. Canadian flight certificate "Otter" received in November 1952 years. And shortly thereafter, began mass production of the aircraft.

DHC-3 has the following modifications:

- DHC-3 Otter - BASIC version, designed for passenger transportation.

- CSR-123 Otter - transport aircraft short takeoff and landing for the Royal Canadian Air Force.

- U-1A Otter - transport aircraft for the US Army

- U-1B Otter - transport aircraft of the US Navy. Before 1962 year was named UC-1 Otter.

- Airtech Canada DHC-3 / 1000 Otter - an upgraded version of the engine with the established Polish-made PZL Kalisz ASZ-62IR.

- DHC-3-T Turbo-Otter - version of the aircraft, equipped with turboprop Pratt & Whitney Canada PT6A-34 or PT6A-27.

DHC-3 Otter inside

Also produces other modifications DHC-3 Otter.

One of the largest operators of aircraft DHC-3 Otter became the US Army. There was delivered 184 aircraft under the designation U-1A Otter. The aircraft was delivered to the Army in Australia and India. DHC-3 besides transport, forwarding and search and rescue, popular and parachuting.

Serial production of aircraft DHC-3 Otter, continued to 1967 years. From the period of 1951 1967 466 year it was produced aircraft DHC-3. In today's time the aircraft continues to operate military, small transport companies and individuals as the transport and light passenger aircraft at short distances and in various remote regions.

 

Technical characteristics of the aircraft DHC-3 Otter

 

First flight DHC-3 Otter: 12 1951 December year

Production Years: c 1951 1967 year on year

Length: 12,75 m.

Height: 3,84 m.

Wingspan: 17,68 m.

Empty weight: 1895 kg.

Wing area: 34,84 sq.m.

Cruising speed: 225 km / h..

Maximum speed: 257 km / h..

Ceiling: 5730 m.

Range: 1500 km.

Engines: 1 PD P & W R-1340-S1H1-G / S3H1-G Wasp

Crew: 1-2 people

Number of seats: 11 places

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