The ATR 72 is a Twin-Engine Turboprop short-haul regional Airliner built by the French-Italian aircraft manufacturer ATR. A stretched variant of the ATR 42, the aircraft 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 metres (15 ft), 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 27 October 1989, Finnair became the first airline to put the aircraft into service.Since then, 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 aircraft) as the front door is used to load cargo. Finnair ordered their ATR 72s with a front passenger door so that they could use the jet bridges at Helsinki–Vantaa airport. A tail stand must be installed when passengers are boarding or disembarking in 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) as normally equipped. The APU is an option and would be placed in the C4 cargo section. Most air carriers normally equip the aircraft with 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. The downside to the prop brake is improper usage; many airlines have burned out these brakes, so some companies have removed them from the aircraft entirely.[citation needed]
ATR 72 - Super ATR
The Super ATR can be found primarily in our Miami and San Juan operations where it is vitally important in its role serving the many Island Nations of the Caribbean, as well as the Bahamas and other important routes that are not feasible with jet service. The largest plane in the American Eagle fleet, the ATR is known for its flexibility and comfort.
ATR 72 - Super ATR Storage
While Carry-on capacity is limited to smaller briefcase and purse sized pieces, all American Eagle aircraft feature our popular planeside Valet service for those larger pieces of carry-on luggage.
Area Cabin Width Height Depth
Under seat Main 16 12" 11"
Overhead Bin Main 48" 14" 8"
ATR 72 - Super ATR Storage
While Carry-on capacity is limited to smaller briefcase and purse sized pieces, all American Eagle aircraft feature our popular planeside Valet service for those larger pieces of carry-on luggage.
Area Cabin Width Height Depth
Under seat Main 16 12" 11"
Overhead Bin Main 48" 14" 8"
ATR 72 - Super ATR Facts And Specs
Facts
The Super ATR serves more International routes than any other American Eagle fleet type, and can be seen throughout the Caribbean and Bahamas.
The Super ATR uses 1/3 less fuel than a similarly sized jet aircraft.
Specs
Number of Engines: 2
Engine Type: PW 127F
Engine Manufacturer: Pratt & Whitney
Wingspan: 88' 9"
Length: 89' 2"
Height: 25' 1"
Total Seats: 66
Seat Configuration: 2x2
Seat Width: 17.5"
Seat Pitch: 30"
Recline: 3 degrees
Typical Cruising Altitude: 20,000 ft.
Typical Cruising Speed: 300 mph
Cabin Pressure: Maximum 6.35 pounds per square inch
Aisle Width: Main Cabin: 17.5"
Aft Cargo Door opening: Height: 43"
Width: 20"
Acceptable Kennel Sizes: Type 400 series or smaller:
Width: 24"
Height: 26"
Depth: 36"
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 2,400 shp (1,800 kW).
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 2,750 shp (2,050 kW) 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
The ATR 72-500 is the latest development of the ATR 72. It draws from the in-service experience of more than 700 ATR aircraft flying worldwide, with a proven average dispatch reliability of more than 99%.
The ATR 72-500 fully meets the customer requirements in a rapidly evolving market and is playing a major role in the growth of regional carriers. It offers:
*The lowest seat-mile costs in its class
*Great efficiency and reliability, key to efficient regional operation
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.
The –600 series aircraft was announced in October 2007; the first deliveries were planned for the second half of 2010
The new ATR 42–600 and 72–600 feature a number of improvements over previous versions. They are powered by the new PW127M engines, which enable a 5% increase in takeoff power called for by a “boost function” as needed, only when called for by the takeoff conditions. The flight deck features five wide LCD screens (improving on the EFIS from previous versions). A multi-purpose computer (MPC) aims at increasing flight safety and operational capabilities, and new Thales-made avionics provide RNP capabilities. Finally, the aircraft feature lighter seats and larger overhead baggage bins.
The prototype ATR 72–600 (registered F-WWEY) first flew on 24 July 2009; it had been converted from an ATR 72–500.
The ATR 72–600 Series launch customer is Royal Air Maroc Express. Air New Zealand announced in October 2011 that it would purchase 12 new ATR 72–600 to add to their 11 ATR 72–500 regional Mount Cook Airlines fleet. Colombian Airline Avianca-Taca signed a contract for 15 ATR 72–600 in December 2012, with an option for 15 airplanes more, to replace older Fokkers.The largest –600 operator is Azul Brazilian Airlines, with 18 aircraft in its fleet.
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