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ATR 42 Avions de Transport Regional
ATR 42
Regional Airliner

DESCRIPTION:
ATR was formed through a joint venture by Aerospatiale of France and Aeritalia (now Alenia) of Italy in 1980. Each company had been working on its own commuter aircraft, the Aeritalia AIT-230 and the Aerospatiale AS.35, before pooling resources to form ATR. British Aerospace later merged its commuter aircraft division with ATR as well to form Aero International Regional (AIR). The first design to result from this cooperation was the ATR 42 carrying 42 to 50 passengers. The aircraft utilizes a high-mounted wing, two Pratt & Whitney turboprop engines, and digital avionics. As of 1995, over 285 ATR 42s has been built for over 60 airlines. The ATR 42 proved so successful that an enlarged version, the ATR 72 was introduced in 1986.

Data below for ATR 42-300
Last modified 14 September 2010

HISTORY:
First Flight (42-300) 16 August 1984
(42-600) 4 March 2010
Service Entry

9 December 1985 (with Air Littoral)

CREW:

2 pilots, 2 flight attendants

PASSENGERS:

(typical) 42-50
(42-300) 42 in one-class

ESTIMATED COST:

unknown

AIRFOIL SECTIONS:
Wing Root RA 1843 (NACA 43018 mod)
Wing Tip RA 1343 (NACA 43013 mod)

DIMENSIONS:
Length 74.38 ft (22.67 m)
Wingspan 80.63 ft (24.57 m)
Height 24.90 ft (7.59 m)
Wing Area unknown
Canard Area

not applicable

WEIGHTS:
Empty 22,675 lb (10,285 kg)
Normal Takeoff unknown
Max Takeoff (42-300) 36,820 lb (16,700 kg)
(42-500) 40,920 lb (18,600 kg)
Fuel Capacity internal: 5,676 lb (2,580 kg)
external: not applicable
Max Payload

unknown

PROPULSION:
Powerplant (42-300) two Pratt & Whitney Canada PW120 turboprops
(42-500) two Pratt & Whitney Canada PW127E turboprops
Thrust

(42-300) 3,600 shp (2,685 kW)
(42-500) 4,800 shp (3,580 kW)

PERFORMANCE:
Max Level Speed at altitude: unknown
at sea level: unknown
cruise speed: 310 mph (500 km/h)
Initial Climb Rate 1,800 ft (550 m) / min
Service Ceiling 25,000 ft (7,630 m)
Cruise Altitude unknown
Range max fuel: 2,000 nm (3,700 km)
max payload: 1,050 nm (1,945 km) [42-300]
880 nm (1,630 km) [42-500]
g-Limits

unknown

KNOWN VARIANTS:
ATR 42-300 First production model
ATR 42-320 ATR 42-300 with more powerful PW121 engines
ATR 42-400 Version carrying 48 passengers, also includes sound-absorbtion material and six-bladed propellers
ATR 42F Cargo model with strengthened floor
ATR 42-500 Equipped with improved engines powering reduced size 6-bladed propellers at reduced rotation speed, uses advanced tip blades to reduce vibration and noise
ATR 42 MP Surveyor

Military variant developed for maritime surveillance duties including maritime patrol, search and rescue, and coastal defense; also capable of troop or cargo transport and medical evacuation

KNOWN OPERATORS:
Civil AeroMar
Air Littoral
Air Martinique
Air Pacific
Arkia
Continental Express
Conviasa Airlines
Czechoslovakian Airlines
Empire Airways
Eurowings
MacAir Airlines
Oman Air
Pacific Sun
Pan Am Express
Royal Air Maroc
Simmons
Tarom ATR
West Caribbean Airways
Zambia Airways
Government/Military Italy, Guardia Costiera Italiana (Italian Coast Guard)
Italy, Guardia di Finanzia (Italian Customs Service)
Libya, Al Quwwat al Jawwiya al Jamahiriya al Arabia al Libyya (Libyan Air Force)
Nigeria (Nigerian Air Force)

3-VIEW SCHEMATIC:

ATR 42


SOURCES:
  • Aboulafia, Richard. Jane's Civil Aircraft. Glasgow: Harper Collins Publishers, 1996, p. 102-103.
  • ATR 42 website





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