Antonov An-74

https://en.wikipedia.org/wiki/Antonov_An-74

The Antonov An-74 (NATO reporting name: Coaler) is a Soviet/Ukrainian transport
aircraft, developed by Antonov. It is a variant of the An-72.

The An-72 and An-74 get their nickname, Cheburashka, from the large engine
intake ducts, which resemble the oversized ears of the popular Soviet animated
character of the same name.

The An-74 was initially an upgrade of the An-72 test aircraft, intended to be
used in the Arctic and Antarctica; and had the designation An-72A "Arctic". The
aircraft's main purpose is to deliver cargo, equipment and personnel over short-
and medium-range routes in any climatic conditions ranging from -60 °C to +45 °C
and at any latitude, including the North Pole, and high altitudes. It can
operate to and from low grade airstrips such as concrete, pebble, ice and snow
aerodromes.

An unusual design feature of the An-74 (as well as An-72) is the use of the
Coanda effect to improve STOL performance, utilizing engine exhaust gases blown
over the wing's upper surface to boost lift. The powerplant used is the Lotarev
D-36 turbofan engine. The An-74 bears a resemblance to the Boeing YC-14, a
prototype design from the early 1970s which had also used overwing engines and
the Coanda effect.

The rear fuselage of the aircraft has a hinged loading ramp with a rear fairing
that slides backwards and up to clear the opening. The An-74 has a payload of
7.5 tons including up to ten passengers in the cargo version, or up to 52 seats
in the passenger version; the operating ceiling is 10,100 metres (33,100 ft) and
cruising speed is 550 to 700 kilometres per hour (300 to 380 kn). The aircraft
may also be used for highly specialized operations:

pilotage and vessel escort;

establishing and servicing of drifting stations;

research operations in Arctic or Antarctic regions;

visual ice patrol;

fishery reconnaissance

Role
Transport aircraft

National origin
Soviet Union/Ukraine

Manufacturer
Antonov

First flight
November 1983

Introduction
1983

Status
In service

Primary users
Russian Air Force
Egyptian Air Force
Islamic Republic of Iran Air Force

Produced
1986–present

Number built
195 (An-72 & An-74)

Developed from
Antonov An-72

As of January 1, 2006, 23 out of 30 aircraft registered in Russia were in
operation.

Specifications

General characteristics
Crew: five (captain, first officer, navigator, flight engineer, loadmaster)
Capacity: up to 52 passengers
Length: 28.07 m (92 ft 1 in)
Wingspan: 31.89 m (104 ft 7½ in)
Height: 8.65 m (28 ft 4½ in)
Wing area: 98.62 m2 (1,062 ft2)
Empty weight: 19,050 kg (42,000 lb)
Gross weight: 34,500 kg (76,058 lb)
Powerplant: 2 × Lotarev D-36 series 1A, 63.9 kN (14,330 lbf) thrust each

Performance
Maximum speed: 700 km/h (435 mph)
Cruising speed: 550 / 600 km/h (342 / 373 mph)
Range: 4,325 km (2,688 miles)
Service ceiling: 10,100 m (33,136 ft)





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