Good luck Abi, other thing is as a relative you could request his service records, or what they have.

See

http://www.raf.mod.uk/community/support/requestforinformationfromservicerecords.cfm

http://www.bbc.co.uk/history/familyhistory/get_started/archives_01.shtml

If you don’t get anywhere come back and repost. If you do, come back and post as well 🙂