Hello nijinski,
RAF records are kept @
ACOS Manning (RAF Disclosures)
Trenchard Hall, RAF Cranwell
Lincolnshire NG34 8HB
You will need to ask them for a form to apply for your Dads records then prove your right of access.
Your Birth Cert & other info (its explained on the form) will cost about £50 to obtain full service record,
Regards John