Eyles of Basingstoke, joined the RAF as an Aircraft Apprentice in September 1932 and passed out in August 1935. He later applied for pilot training an was selected. 

Eyles completed his training at 11 FTS, Shawbury and he joined 92 Squadron at Tangmere on October 23 1939.

Over Dunkirk on June 2 1940, Eyles damaged a He 111. He claimed a He 111 destroyed on September 11. He was shot down on the 20th by Major Molders of JG 51. His Spitfire, N3248 went into the Channel off Dungness and Eyles was reported 'Missing'. He was 24 and is remembered on the Runnymede Memorial Panel 14.

Pilot Officer H P Hill in another Spitfire was lost in the same engagement.