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The ATR 72 is a twin-turboprop short-haul regional airliner built by the French-Italian aircraft manufacturer ATR. It seats up to 78 passengers in a single-class configuration and is operated by a two-pilot crew.

Development



The ATR 72 was developed from the ATR 42 in order to increase the seating capacity (48 to 78) by stretching the fuselage by 4.5 m (14 ft 9 in), increasing the wingspan, adding more powerful engines, and increasing fuel capacity by approximately 10 percent. The 72 was announced in 1986, and made its maiden flight on 27 October 1988. Exactly one year after that, on October 27, 1989, Finnair became the first company to put the plane into service.

At least 408 ATR 72s have been delivered worldwide with orders pending on at least 28 more.

Design

Passengers are boarded using the rear door (which is rare for a passenger plane) as the front door is used to load cargo. Finnair ordered their ATR 72s with front passenger door so they could use the jet bridges at Helsinki-Vantaa airportmarker.

A tail stand must be installed when passengers are boarding or disembarking in the case the nose lifts off the ground, which is common if the aircraft is loaded or unloaded incorrectly.

The ATR aircraft does not have an Auxiliary Power Unit (APU), but it has a propeller brake (referred to as "Hotel Mode") that stops the propeller on the #2 (right) engine, allowing the turbine to run and provide air and power to the aircraft without the propeller spinning. This eliminates the need for the added weight and expense of an APU.

Variants



ATR 72-100

Two sub-types were marketed as the 100 series (-100)
ATR 72-101
Initial production variant powered by two PW124B engines and certified in September 1989.
ATR 72-102
PW124B powered variant certified in December 1989


ATR 72-200

Two sub-types were marketed as the 200 series (-200)The -200 was the original production version, powered by Pratt & Whitney Canada PW124B engines rated at 2400 shp.
ATR 72-201
Higher maximum take-off weight variant of the -101, a PW124B powered variant certified in September 1989
ATR 72-202
Higher maximum take-off weight variant of the -102, a PW124B powered variant certified in December 1989


ATR 72-210

Two sub-types were marketed as the 210 series (-210), the -211, (and with an enlarged cargo door, called the -212), is a -200 with PW127 engines producing each for improved performance in hot and high-altitude conditions. Difference between the sub-types is the type of doors, emergency exits.
ATR 72-211:
PW127 powered variant certified in December 1992
ATR 72-212
PW127 powered variant certified in December 1992


ATR 72-500

ATR 72-212A
Marketed as the -500 and certified in January 1997 with either PW127F or PW127M engines the -212A is an upgraded version of the -210 using six-bladed propellers on otherwise identical PW127F engines. Other improvements include higher maximum weights and superior performance, as well as greater automation of power management to ease pilot workload.


ATR 72-600

On Tuesday 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.marker.

The new ATR 42-600 and ATR 72-600 will feature the latest technological enhancements while building upon the well-known advantages of the current aircraft, namely its high efficiency, proven 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. The -600 series ATR aircraft will be progressively introduced during the second half of 2010.

Using a temporary test registration F-WWEY the prototype ATR 72-600 first flew on 24 July 2009, it had been converted from an ATR 72-500,

Specifications

Measurement ATR42-500 ATR72-500
Flight Deck Crew Two
Cabin Crew One Two
Passenger Capacity (Single Class) 44-50 68-78
Length 22.67 m
(74 ft 5 in)
27.16 m (89 ft 2 in)
Wingspan 24.57 m (80 ft 7 in) 27.05 m (88 ft 9 in)
Height 7.59 m
(24 ft 11 in)
7.65 m
(25 ft 1 in)
Empty Weight (kg) 11,250 12,950
Maximum takeoff (kg) 18,600 22,500 (Basic)
22,800 (Optional)
Takeoff Run at MTOW 1,165 m (3,822 ft) 1,290 m (4,232 ft)
Powerplants Pratt & Whitney Canada PW127E Pratt & Whitney Canada PW127F/M
Maximum speed 300 kn (555 km/h) 276 kn (511 km/h)
Range 1,611 km 1,500 km
Service ceiling 25,000 ft (7,600 m)


[36548][36549]

Other variants

ATR unveiled a large cargo door modification for all ATR 72 at Farnborough 2002, coupled with a dedicated cargo conversion. FedEx, DHL, and UPSmarker all operate the type.

A VIP version of the -500 is available with a luxury interior for executive or corporate transport.

An anti-submarine warfare (ASW) variant of the -500 (itself a version of the maritime patrol variant of the ATR 42-500) is also in production and has been selected by Turkish Navy and Italian Navy for ASW and anti-surface warfare (ASuW) duties. Ten aircraft will be delivered to the Turkish Navy beginning in 2010. Italy's order of four aircraft will begin deliveries in 2012. For ASW and ASuW missions, the aircraft will be armed with a pod-mounted machine gun, lightweight aerial torpedoes, anti-surface missiles, and depth charges. They will also be equipped with the AMASCOS (Airborne Maritime Situation and Control System) maritime surveillance system of Thales, as well as electronic warfare and reconnaissance systems, and will also be used for maritime search and rescue operations.

Operators

As of 16th November 2009:







































Major firm orders include:



Accidents and incidents

  • American Eagle Flight 4184 crashed due to icing on 31 October 1994 in Roselawn, Indianamarker. The accident had a significant effect on procedures for dealing with ATR in-flight icing as well as US airlines' utilization of ATR aircraft in specific geographical areas. After a period of mandatory grounding, American Eagle and Delta Connection permanently stopped using the plane on temperate routes. Since the Eagle incidents, ATR had improved the anti-ice boots, though ice-related incidents continued with the type, including a 2002 crash (see below) and a 2009 event where a smaller ATR-42 variant crashed during landing, in icy conditions. Despite this, ATRs are still used in European markets, including the climate of the Nordic countries.
  • TransAsia Airways cargo flight 79, an ATR 72-200, crashed due to icing on 21 December 2002 during flight from Taipei to Macau. Both crew members were killed. The plane encountered severe icing conditions beyond the icing certification envelope of the aircraft and crashed into sea 17 km southwest of Makung city. The Aviation Safety Council of Taiwan investigation found that the crash was caused by ice accumulation around the plane's major components, resulting in the aircraft's loss of control. The investigation identified that flight crew did not respond to the severe icing conditions with the appropriate alert situation awareness and did not take the necessary actions.
  • American Eagle Flight 5401 crashed on landing in San Juanmarker, Puerto Rico during a failed go-around attempt on 9 May 2004. Seventeen people were injured, but there were no fatalities.
  • On 6 August 2005, Tuninter Flight 1153, a Tuninter ATR 72 en route from Bari, Italymarker, to Djerbamarker, Tunisiamarker, ditched into the Mediterranean Seamarker about from the city of Palermomarker. Sixteen of the 39 people on board died. The accident resulted from engine fuel exhaustion due to the installation of ATR 42 fuel quantity indicators in the ATR 72.
  • On 24 August 2008, an Air Dolomiti ATR 72 en route from Munichmarker, Germanymarker, to Bolognamarker, Italymarker, abandoned take off after the pilot announced a smoke alarm. The airline treated the plane's evacuation as a mild incident. On 26 August, an amateur video, filmed by a bystander, showed 60 passengers jumping from and fleeing the burning plane before fire department workers extinguish the flames.
  • On 26 December 2008, a Mount Cook Airlines ATR 72-500 en route from Wellingtonmarker to Christchurchmarker, New Zealandmarker, lost power in its right engine one minute after takeoff. A passenger reported seeing something hit the engine and smoke from the engine filled the cabin through the air conditioning system. An Air New Zealand spokeswoman said the airplane's pilots saw a warning indicator light and shut down one engine. Air New Zealand engineers are investigating the cause of the engine failure.
  • On 4 August 2009, Bangkok Airways Flight 266marker, an ATR 72-212A from Bangkok Airways skidded into a disused tower at the airport on Koh Samuimarker.The pilot of the aircraft died and 10 passengers were injured.
  • On 31 October 2009 Jet Airways Flight 9W 2633, an ATR 72 from Jet Airways, made an emergency landing in the Amritsar Internation Airport due to failure of the right side engine. It appeared to some passengers that the crew noticed it only on being told by the passengers. The landing was eventless.
  • On 10 November 2009, Kingfisher Airlines Flight 4124, operated by ATR 72-212A VT-KAC skidded off the runway after landing at Chhatrapati Shivaji International Airportmarker subsequently damaging the nose section severly. The aircraft came to a halt just a few metres away from the fuel tanks of the airport. All 46 passengers and crew escaped unharmed.


See also

References

  1. Detailed Milestones
  2. ATR Profile
  3. Photos: ATR ATR-72-201 Aircraft Pictures | Airliners.net
  4. http://www.atraircraft.com/downl/ATR%2042-72%20The%20Regional%20Way%202005.pdf
  5. ATR 72-200
  6. ATR 42/72-600
  7. ATR 72-600 to fly early this summer
  8. Image of F-WWEY
  9. ATR Cargo Solutions
  10. ATR Corporate Version
  11. ASW variant
  12. http://www.strategypage.com/htmw/htnavai/articles/20081230.aspx
  13. ATR 72-500ASW
  14. Wings Air orders 15 ATR72-500 and 15 options for ATR72-600 at Dubai 09 airshow
  15. http://www.airliners.net/articles/read.main?id=17 ATR from the pilot's perspective
  16. CNN: FedEx plane crashes in Texas 27 January 2009
  17. Aviation Safety Council-Occurrence Investigations
  18. http://aviation-safety.net/database/record.php?id=20050806-0
  19. Amateur films flaming plane at Munich airport
  20. Engine fails on New Zealand airliner
  21. http://www.hindustantimes.com/hthorizons/punjab/Jet-engine-fails-flight-makes-emergency-landing-in-Amritsar/Article1-471344.aspx


External links




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