مؤكدالثقة بالتاريخ: مؤكدمذكور على أنه قطعيمدى حزم المصدر في صياغة التاريخ: مؤكد أو مجدول أو تقديري أو متأخر أو غير موثّق.عرض كل الدبابيس: مؤكدثقة 81%الثقة الإجمالية: 81%مدى دعم مصدر الدبوس ومراجعه لتواريخه.متوسط مرجّح لمدى قوة دعم 5 مراجع، بما فيها المصدر، لوقتَي بدء الدبوس وانتهائه؛ ويقل وزن المرجع إلى النصف عن كل 180 يومًا يسبق بها أحدث مرجععرض كل الدبابيس بثقة 75% أو أعلى
This Day in Aviation: '19 February 1982: At Renton Municipal Airport, Boeing test pilots John H. Armstrong and Samuel Lewis ("Lew") Wallick, Jr., made the first flight of the prototype Model 757 airliner'; the Seattle Times[5] also dates it 19 Feb.Boeing 757 Prototype Makes Its First Flight at Renton
On 19 February 1982 Boeing's prototype 757-200, N757A, took off from Renton and landed at Paine Field after 2 hours 31 minutes, with an air restart of the number 2 engine on the way. It had been rolled out on 13 January 1982.
- Test pilots John H. Armstrong and Lew Wallick flew N757A (serial 22212) from Renton Municipal Airport and landed at Paine Field, Everett, after 2 hours 31 minutes; the number 2 engine needed an air restart[1]
- Armstrong and Boeing called it a "perfect first flight", though they later admitted a design problem, corrected afterwards, had made them shut down one of the two engines for part of the flight[5]
- The prototype was rolled out at Renton on 13 January 1982, by when the 757 had 136 orders from seven carriers (Air Florida, American, British Airways, Delta, Eastern, Monarch and Transbrasil)[4]
- The test plan drawn up at the end of 1978 called for 375 hours of flying from February to December 1982, a timetable that was met, even though an engine-icing problem later pushed the FAA approval to 21 December[5]
- Flight noted that Boeing aimed for a common type rating with the 767 and that the 757 had flown only twice when it visited Seattle in late winter[3]
Notable features
- 757-200: length 155 ft 3 in (47.32 m), wingspan 124 ft 10 in (38.05 m), height 44 ft 6 in, empty weight 127,520 lb, MTOW 255,000 lb[1]
- Prototype power: two Rolls-Royce RB.211-535C turbofans of 37,400 lbf; production aircraft later offered RB.211-535E4 or Pratt & Whitney PW2037 engines up to 43,734 lbf[1]
- Cruise Mach 0.80 (530 mph at 35,000 ft); Boeing's airport-planning layout seats 186 in two classes (16 first, 170 economy)[1][2]
- Range about 3,915 nmi (7,250 km) with 200 passengers[4]
بصفتها شريكًا في برنامج Amazon Associates، تحصل Chronopin على عمولة من المشتريات المؤهلة.
قد تحصل Chronopin على عمولة عند الشراء عبر روابط eBay.