Charles Wallace Chapman (4 August 1897 - December 1979) was a British mechanical engineer, who designed the first diesel engine suitable for an automobile, the high speed diesel engine (compression ignition engine).
He was born in Lancaster, Lancashire.
On 7 June 1932 he jointly founded Perkins Engines in Peterborough (then in Northamptonshire) with Frank Perkins (engineer), who he first met in 1929. Perkins Engines was created to build high speed diesel engines. Francis Arthur Perkins was the businessman, and Charles Chapman provided technical skill.
During the Second World War, he designed the Perkins S6 marine diesel engine, which powered the Royal Navy's air-sea rescue craft. He also designed the T1 engine for boats, which was not made. He resigned from Perkins in November 1942. Frank Perkins died in 1967.
Second World War
During the Second World War he carried out work for the Air Ministry.
- Times obituary, 3 December 1979, page 14