Warplanes of the UK: Vickers Type 432

Vickers Type 432

(RAF Photo)

Rear view of the Type 432 displays the aircraft’s long engine nacelles and ventral pod for the six 20-mm cannons. Note how the aircraft’s tail resembles that of a de Havilland Mosquito. The completed aircraft was disassembled at Foxwarren and taken to Farnborough for flight testing.

The Vickers Type 432 was a British high-altitude fighter aircraft developed by the Vickers group during the Second World War. Intended to enable the Royal Air Force to engage the enemy's high-altitude bomber aircraft, it was to be armed with six cannons.

The origins of the Type 432 lay with a requirements set out in 1939 for twin-engined fighters with 20 or possibly 40 mm cannon. Vickers had set out a proposal for a Griffon-engined aircraft, equipped with a 40 mm cannon in a flexible mounting. This was subsequently encouraged by the Air Ministry. Further development was carried out for a design that could also meet F.6/39 for a fixed gun fighter with 20mm cannon. Specification F.22/39 was drawn up to cover the 40mm project as the Vickers 414 to meet Operational Requirement (OR) 76.[1][2] This was subsequently revised with aircraft redesigns to become specifications F.16/40 and then F.7/41[2] for OR. 108.In appearance it resembled a larger version of the de Havilland Mosquito and was known to some as the "Tin Mosquito".[3] The pilot had a pressurised cockpit in the nose, with a bubble dome, similar to an enlarged astrodome. The pressurised cockpit took up the nose section so the cannon would have been fitted in a fairing below the fuselage, to the rear of the aircraft.The aircraft's elliptical wing was built using a unique stressed-skin structure, designed by Barnes Wallis for lightness. The top and bottom were manufactured separately, and then clamped together at the leading and trailing edges, this being named "peapod" or "lobster-claw" structure.[4] This allowed a large internal space unobstructed by ribs, hence capable of housing large fuel tanks (similar to Wallis's geodetic designs).

The first prototype Type 432 DZ217 was flown on 24 December 1942.[5] Initial trials revealed serious handling difficulties on the ground, the aircraft snaking while taxiing, necessitating aft movement of the mainwheels to correct the bad tracking. In flight tests, the Type 432 was unable to be landed in a standard "three-point" stance resulting in the replacement of the Irving-type ailerons with new Westland types along with an alteration of tail settings. The estimated maximum speed of 435 mph (700 km/h) at 28,000 ft (8,535 m) was never attained as the Merlin 61 engines did not run satisfactorily above 23,000 ft (7,010 m).

When the competing Westland Welkin was ordered into production, the second prototype of the Vickers fighter, the Type 446, was cancelled, before completion, on 1 May 1943. The first prototype was retained by Vickers for test purposes until the end of 1944, when the aircraft was scrapped after completing only 28 flights. (Wikipedia)

(RAF Photo)

The Vickers Type 432 prototype DZ217 appears shortly after its completion at Foxwarren.

(RAF Photo)

During its initial taxiing tests at Farnborough, the Type 432 exhibited tracking issues and snaked from side-to-side. The landing gear was moved aft 3 in (76 mm) to improve handling. Flight tests revealed other undesirable characteristics, and modifications were made to the aircraft’s ailerons and tail to improve its handling.

(RAF Photo)

The Vickers Type 432 made only 28 flights in its two-year life. The aircraft was noted as having some handling deficiencies that were never completely resolved, because the project was a dead end. Note the slight forward sweep of the Type 432’s outer wing panels.

(RAF Photo)

Vickers Type 432.

(RAF Photo)

Vickers Type 432.

(RAF Photo)

Vickers Type 432.

(RAF Photo)

Vickers Type 432.

(RAF Photo)

Vickers Type 432.