DHC-3 Otter
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DHC-3 Otter

DHC-3 Otter

 

The DHC-3 Otter is a short take off and landing (STOL) multipurpose aircraft developed by de Havilland Canada. This aircraft is built on the basis of 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.

The design of the DHC-3 Otter aircraft began in the late 1940s. The project was originally named "King Beaver" but was later renamed "Otter". The aircraft has the shape of a monoplane with an all-metal fuselage with a high-positioned straight wing with double-slotted flaps. The tail unit of the aircraft has a cruciform appearance. The landing gear of the aircraft, like that of the DHC-2, can have a wheel, float or ski base, which allows the aircraft to be used from various takeoff and landing sites. The DHC-3 Otter was powered by a 1340 hp R-1-S1H3-G / S1H600-G Wasp radial piston engine manufactured by Pratt & Whitney.

DHC-3 Otter fly

DHC-3 made its first flight on December 12, 1951. Otter received Canadian flight certificate in November 1952. And soon after that, the serial production of the aircraft began.

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 - a version of the aircraft equipped with a Pratt & Whitney Canada PT6A-34 or PT6A-27 turboprop engine.

DHC-3 Otter inside

Also produces other modifications DHC-3 Otter.

One of the largest operators of the DHC-3 Otter was the US Army. 184 aircraft were delivered there under the designation U-1A Otter. The aircraft was also supplied to the army of Australia and India. DHC-3, in addition to transport, expeditionary and search and rescue operations, is popular in 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 DHC-3 Otter aircraft

 

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 passenger seats: 11 seats

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