de Havilland DH112 Venom FB Mk.1

The DH112 Venom FB Mk.1 first flew from Hatfield in 1949. The Venom was a higher-performance development of the Vampire, retaining the same twin-boom layout. It differed primarily in having the larger, higher thrust DH Ghost turbojet, a new thinner wing (10% instead of 14%) with 17° leading edge sweep to achieve a higher Mach number, and 75 Imperial-gallon wing-tip jettisonable fuel tanks. Wind-tunnel tests had shown the latter to give a better lift-drag ratio than underwing tanks as used on the Vampire.

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de Havilland DH112 Sea Venom FAW.22

Designed and built at Hatfield and first flown in 1949, the DH112 Venom single-seat fighter was a progressive development of the Vampire. It had a fatter fuselage ‘pod’ to take the much larger, higher thrust DH Ghost engine, and a thinner wing (10% instead of 14%) with 17 degree leading-edge sweep for higher critical Mach number. It was the first RAF fighter to have wing-tip fuel tanks, the wing being stressed for combat with these tanks full. The Sea Venom FAW.20, 21 and 22 (Fighter, All-Weather) were successive two-seat radar-equipped variants for the Fleet Air Arm.

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de Havilland DH110 Sea Vixen FAW.2

Designed and built at Hatfield, the DH110 land-based two-seat, twin-engined all-weather fighter of 1951 was later adapted as the carrier-based Sea Vixen, the last and most advanced and comple of the de Havilland fighters.

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de Havilland DH115 Vampire T.11

The Vampire T.11 was the first advanced jet fighter trainer to use side-by-side seating. It was argued that having the instructor beside him gave the trainee a higher level of confidence, enabled each to see better what the other was doing, and gave both the same gun-sight view. So the existing broad fuselage ‘pod’ of the Vampire NF.10 two-seat radar night fighter was adapted for the dual control trainer. The wings, intakes, tail booms, undercarriage, engine installation, control, fuel tanks, identification light etc., are essentially similar to those of the Vampire FB.6.

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de Havilland DH100 Vampire FB.6

Designed at Salisbury Hall, and built and first flown at Hatfield in 1943, the Vampire single-seat fighter was the first de Havilland jet aircraft. It is of compact pod and twin-boom design, with a single DH Goblin centrifugal turbojet behind the cockpit, fed by wing-root air intakes. Given the modest thrust of the early turbojets, this configuration offered short intake ducts and jet pipe, for minimum propulsive losses, and with the hot exhaust passing below the tailplane. The rear engine freed nose space for a retractable tricycle undercarriage, giving an excellent forward view for the pilot, the raised tail avoiding jet exhaust damage to airfield turf and tarmac.

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