Original sentence: Brandon entered his Cooper in numerous hillclimbs and sprints and in 1947, at Gransden Lodge airfield, he won Britain's first-ever 500cc circuit race.Brandon, whose business was electrical goods, had access to BTH magnetos for the JAP engines, which Cooper's father Charlie then acquired.Eric Brandon (18 July 1920 in East Ham, London – 8 August 1982 in Gosport, Hampshire) was a Formula One driver who raced Coopers.He also won the first Formula Three title.He continued to compete until 1954, and then became involved in hydroplane racing.When he and his boyhood friend John Cooper were released from military service after World War II they built two cars to the new National 500cc regulations
Edited sentence: Brandon entered his Cooper in numerous hillclimbs and sprints and in 1947, at Gransden Lodge airfield, he won Britain's first-ever 500 cc circuit race.Brandon, whose family business was electrical goods, had access to BTH magnetos for the JAP engines, which Cooper's father Charlie then acquired.Eric Brandon (18 July 1920 in East Ham, London – 8 August 1982 in Gosport, Hampshire) was a motor racing driver and businessman.He also won the first Formula Three title, in 1951.He continued to compete in cars until 1956, but had become increasingly involved in hydroplane racing and by 1957 had devoted himself entirely to this outlet for his competitive spirit.He was closely associated with the the Cooper Car Company, and was instrumental in the early development of the company.In 1955 he funded the construction of his own Halseylec sports car, named after his electrical supplies company.Later in the 1950s Brandon entered five World Championship Grands Prix in larger, Formula Two Cooper-Bristols, but failed to score any Championship points.When he and his boyhood friend John Cooper were released from military service after World War II they built two cars to the new National  regulations