The 100-seat Boeing 717-200 twinjet was designed specifically for short-range, high-frequency flights. The aircraft was first rolled out on 10 June 1998 and its maiden flight was completed on 2 September 1998. Since entering service in September 1999, with launch customer AirTran Airways, aircraft have been delivered and are operating in Asia, Australia, Europe and North America with ten airlines and operators. 156 aircraft are currently in service worldwide. Boeing ended production of the 717 in May 2006.
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The aircraft was originally launched as the MD-95 in 1995 and was redesignated the Boeing 717 after the Boeing Company and McDonnell Douglas merged in 1997. The 717 has a distinctive appearance with low-wing, rear-mounted engines and a T-tail and is similar in size to its predecessor, the DC-9-30. The wingspan is 28.4m and length is 37.98m.
Boeing 717 variants
The current version of the aircraft is the 100-seat 717-200. A 130-seat version, the 717-300X, was also being considered.
A corporate shuttle variant, the Boeing 717 Business Express was launched at the European Business Aviation Convention & Exhibition (EBACE) in May 2003.
Boeing 717 cockpit and flight deck
The two-crew flight deck is equipped with an electronic flight information system (EFIS), with six interchangeable 8in × 8in (203mm × 203mm) liquid crystal displays showing flight, navigation and systems status. The 717 is fitted with the advanced air flight control system (AFCS) installed on the MD-11 aircraft. The controls are mounted on the glareshield. The windscreen is fitted with an electrical de-icing system.
The overhead instrument panel, the cockpit integrated flightcrew warning and alerting panel (IFWAP), is equipped with four liquid crystal displays (LCDs). A Honeywell Versatile Integrated Avionics VIA 2000 computer controls the avionics suite, which includes a Honeywell flight management system (FMS), a digital air data computer, a digital flight guidance system, an inertial reference system and a windshear detection system. An upgrade for the VIA system software added a head-up display (HUD) for the pilot. The upgrade received certification in late 2003.
The aircraft has CAT IIIa capability. A programme is underway for the installation of an improved global positioning system and other instruments for CAT III b certification.
Construction
Boeing subcontracts the manufacture of aircraft components and subassemblies to aerospace contractors worldwide. The components are shipped to the Boeing production facilities at Long Beech, California for final assembly and testing.
Subcontractors include: AIDC: empennage (tail unit); Andalucia Aerospacial: a range of subsystems; Aerospace Division of Korean Airlines: the nose section; Alenia: sections of the fuselage; Boeing Canada and Hyundai: wings; Auxiliary Power Corporation: auxiliary power unit; Fischer Advanced Composite Components: cabin interior furnishing; Honeywell: avionics, wheels and brakes; Goodrich: engine nacelles; Hamilton Sundstrand: electrical power generators; IAI SHL Servo Systems: landing gear; Labinal: electrical assemblies; Parker-Hannifin Corporation: hydraulics and control systems; Rolls Royce Deutschland: engines; and ShinMaywa Industries: engine pylons and sections of the tail.
Cabin
The cabin interior is manufactured by Austrian-based company Fischer Advanced Composite Components. The cabin typically accommodates 106 seats in a two-class configuration with four-abreast first-class and five-abreast standard-class seating. The cabin is air conditioned with digital cabin air controllers and a Honeywell dual air cycle air conditioning using engine bleed air.
The underfloor baggage and cargo holds, capacity 26.5m, are equipped with a conveyor system and movable bulkheads.
Turbofan engines
The engine nacelles, manufactured by Goodrich, are mounted on the rear of the fuselage. The engine pylons manufactured by ShinMaywa Industries Inc are based on the design for the MD-80 aircraft but are thinner and are strengthened with an extra frame.
The engines are Rolls-Royce Deutschland BR 715 A1-30 turbofan engines rated at 82.3kN to 93.4kN. The high bypass ratio engines give very high fuel efficiency.
There are three fuel tanks of 13,904l capacity installed in the wing roots and in the centre section of the fuselage. Two auxiliary fuel tanks can be installed in the cargo holds in the underfloor section, increasing the fuel capacity to 16,667l. A fuel recirculation system prevents ice formation and build up on the wing.
Boeing 717 landing gear
The landing gear is hydraulically operated retractable tricycle-type with twin wheels on all three units. The landing gear, manufactured by Israeli Aircraft Industries SHL Servo Systems, is fitted with an anti-skid system and all steel brakes.
Performance
The Boeing 717 can fly at a maximum speed of 811km/h. The maximum altitude and range of the aircraft are 11,278m and 2,645km respectively. The take-off and landing distances of the aircraft are 1,905m and 1,402m respectively. The aircraft weighs around 30,447kg and its maximum take-off weight is 49,845kg.
