ATR 42

ATR 42
Czech Airlines ATR 42–500 landing at Václav Havel Airport Prague
Role	Regional airliner
National origin	France/Italy
Manufacturer	ATR
First flight	16 August 1984
Introduction	3 December 1985
Status	In service
Primary users	FedEx Feeder TRIP Linhas Aéreas Airlinair Aeromar
Produced	1984–present
Number built	436 as December 2014[1]
Unit cost	42–600: $19.5 million (2012)[2]
Variants	ATR 72

The ATR 42 is a twin-turboprop, short-haul regional airliner built in France and Italy by ATR (Aerei da Trasporto Regionale or Avions de transport régional). ATR and some Airbus models have their final assembly in Toulouse, and share resources and technology. The name "42" comes from the aircraft's standard seating, which varies from 40 to 52. The aircraft serves as the basis for the ATR 72.

Design and development

The ATR 42–300 was announced in 1981, making its maiden flight on 16 August 1984; French and Italian certification followed in September 1985 and its first revenue flight was in December with Air Littoral of France.^[3] This initial version of the ATR42 was in production until 1996. The next upgrade for the product was the ATR42-320 (also produced until 1996); this variant differed in that it was equipped with the more-powerful PW-121 engines for improved performance. The ATR42-300QC is a quick-change (convertible) freight/passenger version of the standard −300 series.^[4]

The current production version is the −500 series. It is a next-generation aircraft with new engines, new propellers, improved hot and high performance, increased weight capacity and an improved passenger cabin. The 50-seat ATR 42–500 was first certificated in July 1995.^[4]

As of December 2012 422 ATR 42s had been delivered worldwide.

Variants

There are six major variants of the ATR 42.

ATR 42–200

The −200 was the original ATR 42 prototype and only a few were built for testing purposes. It was powered by Pratt & Whitney Canada PW120 engines rated at 1,800 shp (1,300 kW).^[5]

ATR 42–300

The −300 was the standard production version. This model was manufactured until 1996. It was powered by Pratt & Whitney Canada PW120 engines rated at 2,000 shp (1,500 kW).

ATR 42–320

The −320 was an improved version of the −300 powered by PW121 engines (2100 shp). It was designed to have better performance especially in hot and high conditions.^[5]

ATR 42–400

The ATR 42−400 is an upgraded version of the −320 using six-bladed propellers on otherwise identical PW121 engines. Three ATR 42−400 were delivered to the Government of Italy as the ATR 42 "Surveyor" version. The only two civilian ATR 42-400 produced (msn 487 & 491) were delivered to CSA Czech Airlines in 1995/1996 as an interim upgrade prior to delivery of -500s. In 2006 these two aircraft were sold to Conviasa.

ATR 42–500

The ATR 42-500 is the current production version. The first delivery was in October 1995. It is a completely new design with many new improvements for performance and passenger comfort. It has new engines, new propellers, a newly designed cabin and increased weight capacity. It has six-bladed propellers turned by PW127E engines rated at 2,400 shp (1,800 kW) for improved hot and high performance and greatly increased cruise speed. The engines are flat rated for +45C. Propellers are electrically controlled and are made from composite. It has an increased maximum takeoff weight, allowing for more cargo and greater range (up to 1,500 nm). Due to the six-bladed propellers and better insulation, it has a much reduced noise level inside the cabin. The newest version have CATII capability and dual Honeywell HT1000 FMS installation.^[4][6]

ATR 42–600

On 2 October 2007, ATR CEO Stéphane Mayer announced the launch of the new −600 series aircraft at a press conference held in Washington, D.C.

The new ATR 42–600 and ATR 72–600 will feature technological enhancements to the current aircraft to increase its efficiency, dispatch reliability, low fuel burn and operating cost. It will include the new PW127M as standard engine (new engines provide 5% additional thermodynamic power at takeoff, thus improving performance on short runways, in hot weather and on high altitude; the incorporation of the "boost function" enables use of this additional power as needed, only when called for by the takeoff conditions), Glass Cockpit flight deck featuring five wide LCD screens that will replace the current EFIS (Electronic Flight Instrument System). In addition, a Multi-Purpose Computer (MPC) will further enhance flight safety and operational capabilities. The new avionics, to be supplied by Thales, will also provide CAT III and RNP capabilities. It will also include the new lighter and more comfortable seats and larger overhead baggage bins.

Using a temporary test registration F-WWLY the prototype ATR 42–600 first flew on 4 March 2010.^[7][8] The first aircraft was delivered to Tanzanian airline Precision Air in November 2012.^[9]

According to the ATR42 & 72 EASA Type Certificate Data Sheet TCDS A.084, Iss 3, 17-10-2012^[10] ), "ATR 42-600" is the manufacturer's marketing designation of ATR 42-500 aircraft model with the NAS (New Avionic Suite, or 'Glass Cockpit') modification installed. The "ATR 42-600" marketing designation is not recognised by EASA as any new certified aircraft model or variant, and must not be used on ATR certified/approved documentation, where only "Mod 5948", "ATR 42-500 with Mod 5948", "ATR 42-500 fitted with NAS", or ATR 42-500 "600 version" must be indicated.

Other versions

Cargo Variant 

Bulk (tube versions) and ULD freighter (large cargo door). An STC exists to convert all ATR-42 variants to all-cargo transport aircraft.^[11] FedEx, Aviavilsa, UPS, and DHL are major operators of the type.

ATR Surveyor 

The ATR-42 "Surveyor" is a maritime patrol version of the −400,^[12]

VIP transport and in-flight inspection versions of the −500 also exist.^[13][14]

Operators

Civil operators

The largest operators of the ATR-42 are FedEx Express, Airlinair, TRIP Linhas Aéreas,and Mexico City-based Aeromar. Operators with at least 5 aircraft as of 2014:

Military and government operators

 Colombia

• Colombian Air Force
• Colombian National Police

 Gabon

• Gabonese Air Force; India*Indian Coast Guard-Government of India

 Italy

• Italian Coast Guard (3 ATR 42 MPs)
• Guardia di Finanza (5 ATR 42 MPs)

 Libya

• Libyan Government (one ATR42 MP)

 Nigeria

• Nigerian Air Force (two ATR 42 MPs^[15]

Accidents and incidents

There have been a total of 23 hull-losses of ATR 42s.^[16]

• On 15 October 1987, an Aero Trasporti Italiani (ATI) ATR 42–300 crashed on Conca di Crezzo, Italy during flight from Milan-Linate to Cologne Bonn Airport, Germany. All 37 on board died. Icing conditions existed.^[17]

• On 21 August 1994, Royal Air Maroc Flight 630 crashed into the Atlas Mountains, killing all 44 people on board. It was claimed the pilot deliberately disengaged the autopilot and crashed the aircraft.

• On 30 July 1997, Air Littoral Flight 701, an ATR 42–500, overran runway 23 at Peretola Airport in Italy after a flight from Nice Côte d'Azur Airport in France. One of the crew was killed out of the 3 crew and 14 passengers. The aircraft was written off in the accident.^[18]

• On 11 October 1999, an Air Botswana captain boarded an ATR 42–320 aircraft at Gaborone Airport and took off. Once in the air, he asked by radio to speak to President Festus Mogae (who was outside the country at the time), Air Botswana's general manager and others. In spite of all attempts to persuade him to land and discuss his grievances, he stated he was going to crash into aircraft parked on the airport apron. After a flying time of about two hours, he performed two loops and then crashed at 200 knots (230 mph) into Air Botswana's two other ATR 42s parked on the apron. The captain was killed, but there were no other casualties. He had been grounded on medical reasons, refused reinstatement, and regrounded until February 2000.^[19]

• On 12 November 1999, Si Fly Flight 3275, an ATR 42-312 registration F-OHFV, was on a flight from Rome Ciampino Airport in Italy to Pristina International Airport Adem Jashari in Kosovo, operating on behalf of the UN. The aircraft crashed into a hill near Mitrovica in Serbia (now in Kosovo) as it was making a turn to the left. The accident killed all 24 passengers and crew on board.^[20]

• On 11 October 2000, an ACES Colombia ATR 42-500 registered as VP-BOF was destroyed when it collided with a Boeing 727 of the same airline while taxiing at El Dorado International Airport in Bogotá, Colombia. There were no fatalities.

• On September 14, 2002, a Total Linhas Aéreas ATR 42-312 registration PT-MTS on a cargo flight between São Paulo-Guarulhos and Londrina crashed while en route near Paranapanema. The crew of two died.^[21]

• On 21 February 2008, Santa Barbara Airlines Flight 518 crashed in the Andes near Mérida, Venezuela, during a flight from Mérida to Simon Bolivar International Airport in Caracas. The aircraft was carrying 43 passengers and 3 crew. All died.^[22]

• May 8, 2008 – N904FX^[23] and N905FX,^[24] two parked ATR 42-320s, were written off after they suffered substantial damage at Piedmont Triad International Airport when the airport was hit by an EF2 tornado.

• On 27 January 2009, an Empire Airlines ATR 42 freighter under contract to FedEx Express crashed on landing at Lubbock Preston Smith International Airport at 04:37 CT. The aircraft, which had been traveling from Fort Worth Alliance Airport, landed short of the touchdown zone and skidded off the runway amid light freezing rain. There was a small fire and two crew members were taken to the hospital with minor injuries.^[25]

• On 11 February 2010, Trigana Air Service Flight 168 made a forced landing in a paddy field at Bone, Indonesia. Two people were seriously injured.

• On 13 September 2010, Conviasa Flight 2350 crashed 10 kilometres (6.2 mi) west of Manuel Carlos Piar Guayana Airport, Ciudad Guayana, Venezuela, on a domestic scheduled passenger flight from Del Caribe "Santiago Mariño" International Airport, Porlamar, Isla Margarita.^[26] Of 51 passengers and crew on board, 34 survived the accident while 17 died.

• On 9 June 2012, ATR 42 OK-KFM named "Benešov", operated by Czech Airlines, burned in a hangar at Prague Ruzyně Airport following an explosion. The machine was a total hull loss.

• On 19 October 2013, ATR 42-300 P2-PXY of Air Niugini suffered an engine fire on take-off from Madang Airport, Papua New Guinea. The take-off was rejected but the aircraft overran the runway and ended up in a creek. All three crew were injured and the aircraft was substantially damaged by the fire, which spread to the starboard wing.^[27]

Specifications

^{[28] [29]}

	ATR 42-200	ATR 42-300	ATR 42-320	ATR 42-500	ATR 42-600
Flight deck crew	2
Seating, typical	42–52
Length	74 ft 5 in (22.67 m)
Wingspan	80 ft 7 in (24.57 m)
Height	24 ft 11 in (7.59 m)
Wing area	587 sq ft (54.5 m2)
Wing aspect ratio	11.1:1[30]
Wheelbase	28.8 ft (8.78 m)
Cabin length	45.4 ft (13.85 m)
Empty weight	23,148 lb (10,500 kg)			24,802 lb (11,250 kg)
Maximum takeoff weight (MTOW)	34,280 lb (15,550 kg)	37,258 lb (16,900 kg)	37,258 lb (16,900 kg)	41,005 lb (18,600 kg)
Cruise speed	267 knots (494 km/h) at cruise altitude			299 knots (554 km/h) at cruise altitude	300 knots (556 km/h) at cruise altitude
Range, loaded	480 nmi (885 km)			840 nmi (1,555 km)	842 nmi (1,560 km)
Maximum fuel capacity	1,486 US gal (5,625 L)
Service ceiling	25,000 ft (7,600 m)
Engines (×2)	Pratt & Whitney Canada PW120		Pratt & Whitney Canada PW121	Pratt & Whitney Canada PW127E	Pratt & Whitney Canada PW127M

See also

Related development

• ATR 72

Aircraft of comparable role, configuration and era

• Antonov An-140
• Bombardier Dash 8
• Dornier 328
• Embraer EMB 120 Brasilia
• Fokker 50
• Ilyushin Il-114
• Saab 340 and 2000
• Sukhoi Su-80
• Xian MA600

References

Notes

Bibliography

• Jackson, Paul. Jane's All The World's Aircraft 2003–2004. Coulsdon, UK: Jane's Information Group, 2003. ISBN 0-7106-2537-5.
• Taylor, Michael J. H. Brassey's World Aircraft & Systems Directory 1999/2000. London: Brassey's, 1999. ISBN 1-85753-245-7.

External links

Wikimedia Commons has media related to ATR 42.

• Official site

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