Vincent Black Shadow and C bikes having 1⅛" Amal 289 carburettors and Series D bikes having 1⅛" Amal Type 389/10 units. While other contemporary motorcycles tended to be polished and chromed, founder Philip Conrad Vincent (PCV) decreed that the Black Shadow engine itself be black. The engine's signature colour was achieved by applying a "pyluminising" coating of chromate anti-corrosion primer over which a layer of Pinchin & Johnson black enamel was added. The part was then baked in an oven for 2 hours at . Although some have claimed that the black finish increased the rate of heat rejection from the engine, its
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