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 74 passengers in a single-class configuration, and is operated by a two-pilot crew. 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. Air New Zealands standard rear door aircraft can use jet bridges at airports with this equipment. 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 No. 2 (right) engine, allowing the turbine to run and provide air and power to the aircraft without the propeller spinning. General characteristics Crew: 2 Capacity: 68 (1-class, 31 in (79 cm) pitch) to 74 (1-class, 29 in (74 cm) pitch) passengers Length: 27.17 m (89 ft 2 in) Wingspan: 27.05 m (88 ft 9 in) Width: 2.57 m (8 ft 5 in) (maximum cabin width) Height: 7.65 m (25 ft 1 in) Wing area: 61.00 m2 (656.6 sq ft) Aspect ratio: 12.0:1[53] Empty weight: 13,010 kg (28,682 lb) Max takeoff weight: 22,800 kg (50,265 lb) Fuel capacity: 5,000 kg (11,000 lb) Typical payload: 7,500 kg (16,500 lb) Powerplant: 2 × Pratt & Whitney Canada PW127F turboprops, 1,846 kW (2,475 shp) each Propellers: 568F-bladed Hamilton Standard, 3.93 m (12 ft 11 in) diameter Performance Cruise speed: 509 km/h; 316 mph (275 kn) Range: 1,528 km; 949 mi (825 nmi) [51] Service ceiling: 7,620 m (25,000 ft) [53] Rate of climb: 6.88 m/s (1,355 ft/min) Takeoff Run at MTOW: 1,333 m (4,373 ft)
Posted on: Sun, 28 Dec 2014 11:55:09 +0000
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