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Aviation History
1953
1953 - 0584.PDF
578 THE LATEST \ VAMPIRE TRAINER WING FUEL TANK 52 gal (15. FILLER) WING BOOM JOINT RING SINCE the Vampire T.n went into production, a num ber of modifications have been incorporated which, taken together, should materially enhance the efficiency of this already first-rate aircraft. Before these modifications are described, however, a brief historical note will be of value. The first two-seat Vampire was the D.H.113 night-fighter, the prototype of which flew in 1949. A limited number of production aircraft were built and delivered to the R.A.F. and the Italian Air Force. The second two-seater was the Venom night-fighter (D.H.i 12) which, broadly speaking, comprised a 113 fuselage with Ghost engine and Venom wings and tail. Various marks of this machine are now in production for the R.A.F., and for a num ber of foreign Air Forces. Another two-seater is the Sea Venom, in large-scale production in Great Britain and France. With such experience of the basic two-seat Vampire conception actually in hand, therefore, it was not surprising that de Havilland thoughts should turn to a trainer version: no firm M.o.S. order was received, but the company went ahead with the project as D.H.115 VAMPIRE TRAINER D.H. Goblin 3 turbojet of 3,350 lb thrust Span 38f Length 34ft Sin Height 6ft 2in Wing area ... 262 sq ft All-up weight 11,1501b All-up weight with two 100-gal external tanks ... ... 12,9201b Normal wing loading ... ... ... ... ... ... 42.6 Ib/sq ft Maximum speed 467 kt (538 m.p.h.) at sea level; 476 kt (548 m.p.h.) at 20,000ft and 452 kt (520 m.p.h.) at 40,000ft Limiting Mach number very nearly 0.8 without external tanks Range without external tanks, 685 n.m. at 30,000ft, or 325 n.m. at sea level Range with underwing tanks, 1,015 n.m. at 30,000ft, or 515 n.m, at sea level
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