ABC Motors Limited (All British (Engine) Company) of Hersham, Surrey, England was a manufacturer of cars, aircraft, motor scooters, and engines for road and air. Hersham is a Village in Surrey, England, lying on the A244 between Esher and Weybridge. Surrey is a county in the South East of England and is one of the Home Counties. England is a Country which is part of the United Kingdom. Its inhabitants account for more than 83% of the total UK population whilst its mainland Established by Ronald Charteris in Byfleet, Surrey in 1912, it was bought by Sopwith in 1919 as that company attempted to diversify its activities following World War I. Byfleet is a village forming a suburb of Woking in Surrey, England. The Sopwith Aviation Company was a British Aircraft company that designed and manufactured aeroplanes mainly for the British Royal Flying Corps, Royal World War I (abbreviated WWI; also known as the First World War, the Great War, and the War to End All Sold again in 1921 when Sopwith was bankrupted, it continued its activities until it was absorbed into Vickers in 1951. Vickers was a famous name in British engineering that existed through many companies from 1828 until 2004 Its chief designer was Granville Bradshaw.
The ABC radial aero engines of the WW1 period were extremely advanced for their time, and were initially thought to be very promising indeed. The radial engine is a reciprocating type internal combustion Engine configuration in which the cylinders point outward from a central Unfortunately they were all more or less plagued by problems - and although a number of types for the Royal Air Force were designed around ABC engines (especially the ill-fated Dragonfly) none of these types were to see squadron service with the RAF.
ABC also made a large number of engines for electrical generators and other purposes - mostly with a flat twin cylinder layout and unusual exhaust-over-inlet valve configuration. A flat-twin is a two cylinder Internal combustion engine with the cylinders arranged on opposite sides of the crankshaft One of these holds the distinction of being possibly the first airborne APU when installed to power the searchlight of the Supermarine Nighthawk 'Zeppelin killer'. An auxiliary power unit ( APU) is a device on a vehicle whose purpose is to provide energy for functions other than propulsion The PB31E Night Hawk, the first project of the Pemberton-Billing operation after it became Supermarine Aviation Works Ltd A Zeppelin is a type of Rigid airship pioneered by the German Count Ferdinand von Zeppelin in the early 20th century based on designs he had outlined