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Aviation History
1982
1982 - 0022.PDF
Boeing 757: introducing the big-fan narrow body of each outboard wing leading edge, but is thought unnecessary for fin and tailplane. As on the 767, electric signalling (fly by wire) rather than control cables operate the spoilers. Each of the six spoilers on each wing has its own electrical link, for redundancy. Current plans call for a 757 first flight in late February. The first air craft belongs to Boeing, and will be joined by four airline-owned ex amples for the flight test programme. About l,200hr of flight testing is planned, leading to certification of the RB.211-535C>powered aircraft in December. Boeing plans to begin flying PW2037 and RB.211-535E4-powered 757s in the first quarter of 1984. Two aircraft of each type will be used for flight testing, leading to certification about nine months later. Each type will fly several hundred hours before certification. First delivery of a Rolls-Royce powered 757 will be to Eastern Air Lines, which is due to receive two air craft in December. Delta Air Lines will be the first to operate PW2037- powered 757s, deliveries of which begin in October 1984. Commonality with the 767 should help 757 certification, because equip ment problems will probably be re solved first time round. In the mean time Boeing needs to net more sales to meet its profitability target of more than 300 orders in the first five years. One thing is sure, however. If the 757 sells anything like as well as the 727, Boeing will have another moneyspinner to its credit. E Boeing's first 757, seen shortly after the addition of Rolls-Royce engines. Note the containers on the right, which keep furnishings clean until needed. Easy access to the aircraft's interior is provided by the door-level platform at centre right Putting the 757 together BOEING will produce almost a half of the parts for the first 200 aircraft—the rest will be supplied by subcontractors, most of whom are in the USA (see sketch below). Boeing Military Airplane of Wichita, Kansas, assembles the 757 nose, while Boeing Vertol con tributes the wing leading edge. Wing skins, rudder, and elevators are made in-house. Assembly of the 757 is along side that of the 727 and 737 at Renton, and ties in nicely with the rapid tail-off in 727 production. Boeing plans to deliver two 757s in 1982, and just over 30 in 1983. Production rate is due to reach 2-5 aircraft a month by the end of 1983. Each 757-200 will cost $31 mil- lion-$34 million at 1981 prices. Boeing subcontracts just over a half of each 757 I Boeing, 2 Avco, 3 Coso, 4 Fairchild, 5 Grumman. 6 Hawker de Havilland, 7 Heath. 8 Rockwell, 9 Rohr. 10 Rolls-Royce (or Pratt & Whitney), II Shorts. 12 Vought, 13 Menasco
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