Maxburner,
In 2009 I obtained my late Father's RAF Service Record from RAF Disclosures, address below. You can also obtain details of any medals awarded, again address below. If service is after 1923 then the records can only be released to next of kin, or his/her nominee with their written consent. From memory I think the cost is £30. Best of luck.
Service Record:-
RAF Disclosures,
Room 221B, Trenchard Hall,
Royal Air Force Cranwell,
SLEAFORD, NG34 8HB
Tel (01400) 268165
Fax (01400) 268160
Medals:-
Ministry of Defence Medal Office,
Building 250, Imjim Barracks,
Innsworth Station,
GLOUCESTER, GL3 1HW.
ps I also obtained my Great Uncles Service History (1911-1915, Irish Guards) by writing to the Adjutant, 1st Bn, Irish Guards, very helpful he was, too.