Antonov Aircraft

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Antonov An-70 Transport

Transport Aircraft

Antonov Aircraft

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Antonov AN-70 Transport

The Antonov An-70 (Ukrainian: Антонов Ан-70) is a four-engine medium-range transport aircraft, and the first aircraft to take flight powered only by propfan engines. It was developed in the late 1980s by the Antonov Design Bureau to replace the obsolete An-12 military transport aircraft. The maiden flight of the first prototype took place in December 1994 in Kyiv, now independent Ukraine. Within months the prototype had suffered a mid-air collision. A second airframe was produced to allow the flight-test programme to proceed. Both prototypes were produced by the Kyiv Aircraft Production Plant.

Design

Following the dissolution of the Soviet Union in the early 1990s, the programme became a joint development between Russia and Ukraine. The former compounded the issue of a reduced market with its intermittent commitment to the project. Repeated attempts to start production have had limited success. Western European countries, including Germany, at one stage assessed the aircraft for procurement, but many later decided against it.

RoleMilitary transport aircraft
National originSoviet Union
Russia / Ukraine
Design groupAntonov Design Bureau
Built byAntonov Serial Production Plant
Kazan Aircraft Production Association
First flight16 December 1994
StatusCompleted state tests, open for production
Produced1991–1996
2012–2015
Number built2 prototypes

Development

The origins of the An-70 can be traced back to the mid-1970s, when Antonov Design Bureau began preliminary design work on a successor for the An-12 four-engine turboprop aircraft.[1] The Soviet Armed Forces, by the 1980s, were looking for a replacement for the An-12 and a complement to the Ilyushin Il-76 four-engine jet transporter; in 1987, the Ministry of Defence, with a new emphasis on air mobility, specified an aircraft with a quick loading time, the ability to operate from short unprepared airfields, could carry up to 300 troops, and have good operating economy.[2][3][4] The initial contract for work on the An-70 was concluded in May 1989;[5] Antonov began advanced design work on the new aircraft during the same year.

General characteristics

  • Crew: 3-4 flight crew (two pilots and flight engineer (optional navigator)) + loadmasters and cargo attendants
  • Capacity: 300 troops or 206 stretcher cases / 47,000 kg (103,617 lb) max payload
  • Length: 40.73 m (133 ft 8 in)
  • Wingspan: 44.06 m (144 ft 7 in)
  • Height: 16.38 m (53 ft 9 in)
  • Airfoil: TsAGI P-202[66]
  • Empty weight: 66,230 kg (146,012 lb)
  • Max takeoff weight: 145,000 kg (319,670 lb)
  • Powerplant: 4 × Progress D-27 propfan, 10,350 kW (13,880 hp) each
  • Propellers: 14-bladed Aerosyla Stupino SV-27, 4.5 m (14 ft 9 in) diameter contra-rotating propeller (8-bladed forward; 6-bladed rear)

Specifications (AN-70)

Performance

Performance

  • Maximum speed: 780 km/h (480 mph, 420 kn)
  • Cruise speed: 750 km/h (470 mph, 400 kn) at 9,100–11,000 m (29,856–36,089 ft)
800 km/h (500 mph; 430 kn) max
  • Stall speed: 113 km/h (70 mph, 61 kn)
  • Range: 1,350 km (840 mi, 730 nmi) with 47,000 kg (103,617 lb) payload from 1,800 m (5,906 ft) runway

Avionics

  • Service ceiling: 12,000 m (39,000 ft)
  • Rate of climb: 24.9 m/s (4,900 ft/min)
  • Power/mass: 0.316 kW/kg (0.192 hp/lb) max
  • Take-off field length: 1,800 m (5,906 ft)
  • Landing field length: 2,000 m (6,562 ft)
  • Take-off run STOL 30,000 kg (66,139 lb) payload: 600 m (1,969 ft)
  • Take-off run STOL 35,000 kg (77,162 lb) payload: 915 m (3,002 ft)

Aircrafttoaal encyclopedia

Antonov State Company is a Soviet, and later is a Ukrainian aircraft manufacturing and services company. Antonov's particular expertise is in the fields of very large aeroplanes and aeroplanes using unprepared runways.