Aircraft manufacturers had, for some four a long time, tried to design the elusive DC-three substitute with completely different powerplant sorts, including the piston-engined Convair 240/340/440 and Martin 2-0-2/4-0-4 sequence and the turboprop Vickers Viscount, Fokker F.27 Friendship, and Hawker Siddeley HS.748. Of the 2, de Havilland, with its earlier Rapide, Dove, and Heron pistonliners, had had considerable regional aircraft expertise and had designed the world’s first pure-jet airliner in the type of the quad-engined DH.106 Comet. An preliminary examine for such a DC-3 replacement, designated the DH.123, had featured a 60.6-foot general length, an 81.3-foot wingspan, two 1,a hundred and fifty shp Gnone turboprops hooked up to a high wing, and a 22,100-pound maximum take off weight. 1. Suitable pure-jet engine availability.
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The bottom pace had pinnacled at 411 knots. Descent, initiated with fifty four miles remaining on its flight plan, had been attained by dialing in 5,500 ft within the cockpit’s “ALT SEL” autopilot, leading to a 2,000-fpm descent rate. Emerging from the ceiling mist over the baby blue of Lake Kariba, which had been outlined by its dry, tan and brown scrub shoreline, the captain consulted his landing flap chart corresponding to a 34,500-kilo weight.
Leaning right into a right financial institution over the brown and tan African expanse at 4,200 toes, the BAe-146 retracted its flaps from the 24- to the 0-diploma position, finishing its “After Take Off” checklist. Ascending by means of 7,600 toes, at which time a 291-knot ground velocity had been registered, it maintained a 1,800-fpm climb fee. Its NAV indicated a 135.4-mile distance to Kariba.
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