Walker joined the
Royal Air Force in 1954 and was commissioned on 31 July 1956. He served as a pilot with
No. 66 Squadron flying
Hunters from 1957 until he joined
No.4 Squadron also flying Hunters in 1959. After attending the
RAF Staff College, Bracknell in 1966, he served as an exchange officer with the
Twelfth Air Force, a formation of the
United States Air Force, from 1967 to 1969. Walker died on 29 January 2025, at the age of 88. ==References==