Vincent Black Knight Vincent Black Knight The Vincent Black Knight is a British motorcycle made between 1954 and 1955 by Vincent Motorcycles. A year before the factory closed in 1955, Vincent produced the enclosed range of "Black Knight" and "Black Prince". Known as the 'Series D', the Black Knight was an upgraded Vincent Rapide which was fully enclosed to keep the rain and dirt from the rider. As well as allowing Vincent to reduce production costs, the enclosure actually improved performance by directing more air to the rear cylinder. Phil Vincent described it as a 'two-wheeled Bentley' and the enclosed Vincents got a
Black Prince (tank) derivative; all had better mobility than the Black Prince and the Centurion had frontal armour of comparable effectiveness. The Black Prince had become redundant and the project was abandoned. The Black Prince marked the end of the development of the A22F Churchill Mk VII, and the end of the Infantry tank concept in British tank design. The only intact Black Prince is held by The Tank Museum in Bovington, UK; it is the fourth of the six prototypes that were built. It has recently been restored to running condition. A Black Prince hull recovered from Salisbury Plain is held by