The Vickers Windsor was a Second World War British four-engine heavy bomber, intended for high altitude flight.

The official position was that the Wellington was becoming obsolete but as the Vickers factories were set up only for geodetic construction any design would need to be based on that method.

Vickers could take the work already done along and fit the four-engine wing to a new design of fuselage and a contract was raised for what would become the Windsor.

B.3/42) for a high-altitude heavy bomber with a pressurised crew compartment and an ability to fly at 345 miles per hour (555 km/h) at 31,000 feet (9,400 m).

The defensive guns were mounted in barbettes at the rear of each outboard nacelle, which were to be remotely operated by a gunner in a pressurised compartment in the extreme tail.

The Windsor used Wallis's geodetic body and wing structure that Vickers had previously used in the Wellesley, Wellington and Warwick bombers.

In these aircraft the wing structure flexural strength in bending and the torsional stiffness were calculated (and designed) as being controlled separately by a single spar and the geodetic lattice construction respectively.

To limit the deflection at the wing tip Wallis added an extra landing gear leg in the outboard engine nacelles.

Instead of doped Irish linen covering used on the earlier geodetic aircraft, a stiff and light skin was used on the Windsor.

This was due to refinements in the existing Lancaster bomber, rendering it suitable for the role for which the Windsor had been designed.

The production contract had been cut back to 100 though by November 1944, then reduced to 40 and with the end of the war against Japan cancelled completely.

Followed in January 1944 by pressurised designs, one with a stressed skin fuselage and the other covered by Geosteel, with the pressure cabin being a rubberised bag within the structure.