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Aviation History
1952
1952 - 2393.PDF
29 August 1952 *37 D.H. Vutnpire Single-senters THE Vampire is too well known in too many countries to demand description here; but an outline of the differences between the current marks may be acceptable. By far the most common variant is the F.B.5, which carries eight rocket projectiles and two 500-lb bombs or two 100-gal drop tanks; alternatively—without R.P.S—two 1,000-lb bombs can be handled. Except that the power plant is a Goblin 3 instead of a Goblin 2, the F.B.6, as built in Switzer land, is similar. Another structurally identical mark is the F.B.9, which has the refinement of Godfrey refrigeration equipment. The F.B.30 is an Australian-built version with Rolls-Royce Nene, and the Mk 50, for Sweden, is generally similar to the Mk 6. Another Nene-powered version is the F.B.51, produced in France; the Norwegian F.B.52, however, is similar to the Mks 6 and 50 in having a Goblin 3. A development of the Nene-powered F.B.51, with redesigned intakes, the F.B.53 Mistral has increased tankage and other refinements. The Sea Vampire F.20 basically resembles the F.B.5, ^d the Sea Vampire 21 has been adapted for experiments with flexible decks. D.H. \ampire TwO'Seaters ANSWERING to this description are the D.H.113 Night Fighter (Vampire N.F.10) and the D.H.115 Vampire Trainer (Vampire T.n). Both are similar in design, with side-by-side seating and long-span, Venom-type tailplane, but the night fighter has a special radar nose. This machine is one of the few modern military types for which detailed performance and handling data may be quoted without transgressing official regulations. Without auxiliary tanks it achieves its operational ceiling of 40,000ft in 16.3 min, and, with the tanks in place, a slightly longer time—17.5 min—is required to attain the reduced operational ceiling of 34,000ft. At 40,000ft, and at a Mach number of 0.7, the radius of steady turn is 1.95 nautical miles, though the machine can, in fact, be pulled round at the minimum radius of 0.95 n.m. At lower levels these figures are considerably improved. The Vampire Trainer is in production for the R.A.F. and for the R.A.A.F. and R.N.Z.A.F. Power plant Span Length Height Wing area D.H. Goblin 38ft 30ft ain 6ft 2in 263 sq ft
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