The British Aerospace BAE

Aircraft manufacturers had, for some 4 a long time, tried to design the elusive DC-3 substitute with different powerplant sorts, including the piston-engined Convair 240/340/440 and Martin 2-0-2/4-0-4 collection and the turboprop Vickers Viscount, Fokker F.27 Friendship, and Hawker Siddeley HS.748. Of the two, de Havilland, with its earlier Rapide, Dove, and Heron pistonliners, had had considerable regional aircraft experience and had designed the world's first pure-jet airliner within the type of the quad-engined DH.106 Comet. An preliminary research for such a DC-3 replacement, designated the DH.123, had featured a 60.6-foot overall length, an 81.3-foot wingspan, two 1,a hundred and fifty shp Gnone turboprops connected to a excessive wing, and a 22,100-pound most take off weight. 1. Suitable pure-jet engine availability.

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The bottom speed had pinnacled at 411 knots. Descent, initiated with fifty four miles remaining on its flight plan, had been attained by dialing in 5,500 toes within the cockpit's "ALT SEL" autopilot, resulting in a 2,000-fpm descent charge. Emerging from the ceiling mist over the child 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 into a proper bank over the brown and tan African expanse at 4,200 feet, the BAe-146 retracted its flaps from the 24- to the 0-degree position, finishing its "After Take Off" guidelines. Ascending by way of 7,600 feet, at which time a 291-knot floor velocity had been registered, it maintained a 1,800-fpm climb price. Its NAV indicated a 135.4-mile distance to Kariba.

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