GSX PRO ATR 42/72-600 GROUND SERVICES PROFILES

Aircraft Description (ATR42)

The ATR 42 is a regional airliner produced by Franco-Italian manufacturer ATR, with final assembly in Toulouse, France. On 4 November 1981, the aircraft was launched with ATR, as a joint venture between French Aérospatiale (now part of Airbus) and Aeritalia (now Leonardo S.p.A.). The ATR 42-300 performed its maiden flight on 16 August 1984 and type certification was granted during September 1985. Launch customer Air Littoral operated its first revenue-earning flight in December of that year.

The high-wing airliner is powered by two turboprop engines, Pratt & Whitney Canada PW120s. The number "42" in its name is derived from the aircraft's original standard seating capacity of 42 passengers. Later variants are upgraded with new avionics, a glass cockpit, and newer engine versions. The ATR 42 is the basis for the stretched ATR 72, introduced in October 1989.

Design
The ATR 42 has a straight wing with a 11.1 wing aspect ratio, and retractable landing gear in fairings under the fuselage, with wheel sides visible in flight.  The ATR 42 is a straight high-wing airliner with twin turboprops and a T-tail, certified in the transport category, and powered by Pratt & Whitney Canada PW120s. It has deicing boots to fly in icing conditions and a retractable landing gear in fairings under the fuselage, with wheel sides visible in flight. It has no Auxiliary Power Unit (APU), but can still be autonomous in ground operations, as it has a propeller brake on the starboard engine, allowing the engine to remain running to provide power on the ground.

It has a pressurized cabin with a circular cross-section, with a 2.57 m (8 ft 5 in) inside width for four-abreast seating, allowing 48 seats at a 30 in (760 mm) seat pitch. It has a 54.5 m2 (587 sq ft) wing area and a 24.57 m (80.6 ft) wing span, for a 11.1 wing aspect ratio. It has a 18,600 kg (41,000 lb) MTOW, for a 341 kg/m2 (70 lb/sq ft) wing loading. It can reach a cruise speed of 300 kt (556 km/h) true air speed, with a fuel flow of 811 kg/h (1,788 lb/h):[21] a fuel economy of 1.46 kg/km (5.96 lb/nmi) or 3.8 L/100 km (62 mpg‑US) per seat with 48 seats and a jet fuel density of 0.8.

Aircraft Description (ATR72)

The ATR 72 is a twin-engine turboprop, short-haul regional airliner developed and produced in France and Italy by aircraft manufacturer ATR (French: Avions de transport régional or Italian: Aerei da Trasporto Regionale), a joint venture formed by French aerospace company Aérospatiale (now part of Airbus) and Italian aviation conglomerate Aeritalia (now Leonardo S.p.A.). The number "72" in its name is derived from the aircraft's typical standard seating capacity of 72 passengers.

During the 1980s, French aerospace company Aérospatiale and Italian aviation conglomerate Aeritalia merged their work on a new generation of regional aircraft. A new jointly owned company, ATR, was established to develop, manufacture, and market their first airliner, which was later designated as the ATR 42. On 16 August 1984, the first model of the series, designated as the ATR 42-300, performed the type's maiden flight. During the mid-1980s, the ATR 72 was developed as a stretched variant of the ATR 42. On 27 October 1989, Finnish airline Finnair became the first airline to operate the type in revenue service. The ATR 72 has also been used as a corporate transport, cargo aircraft, and maritime patrol aircraft.

To date, all of the ATR series have been completed at the company's final assembly line in Toulouse, France; ATR benefits from sharing resources and technology with Airbus SE, which has continued to hold a 50% interest in the company. Successive models of the ATR 72 have been developed. Typical updates have included new avionics, such as a glass cockpit, and the adoption of newer engine versions to deliver enhanced performance, such as increased efficiency and reliability and reductions in operating costs. The aircraft shares a high degree of commonality with the smaller ATR 42, which remains in production as of January 2023.

Design
The ATR 72 is a turboprop-powered regional airliner, capable of accommodating a maximum of 78 passengers. It is powered by a pair of Pratt & Whitney Canada PW100 turboprop engines, which drive an arrangement of four or six-bladed propellers supplied by Hamilton Standard. Earlier models of the ATR 72 are equipped with the older PW124B engine, rated at 2,400 shaft horsepower (1,800 kW), while later-built aircraft are powered by the newer PW127 engine, rated at a maximum of 2,750 shp to achieve improved "hot and high" takeoff performance. It can land and takeoff in high airports with short runways like Andorra Airport. It employs carbonfibres for 30% of the wing by weight, for a 20% weight reduction.

In a standard configuration, the aircraft does not have an auxiliary power unit; when present it is installed within the C4 cargo section. Most operators of the ATR 72 equip their aircraft with a propeller brake (referred to as "Hotel Mode") that stops the propeller on the No. 2 (right) engine, allowing the turbine to continue running and provide both airflow and electrical power to the aircraft while on the ground.

In the majority of configurations, passengers board the ATR 72 using the rear door, a relatively unusual configuration for a passenger aircraft, while the front door is typically used for the loading and unloading of cargo; early customer Finnair intentionally ordered its ATR 72s with a front passenger door so that it could utilize the jet bridges at Helsinki Airport, while operator Air New Zealand's standard rear door aircraft can use jet bridges at airports with this equipment.[citation needed] While passengers are boarding or disembarking the aircraft, a tail stand is set into place as standard procedure to guard against the aircraft nose lifting off the ground.

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