Jock as a Fighter Pilot
For a good account of Jock's RAF flying there is an article 'on-line' on
Aviation Classics edition 9 (Mar 2011). It covers his time before during, and after his 77 Sabre missions with the Americans in Korea.
Not that you would know about it just talking to him.
As 'Mr Biggin' his contribution to getting people into Aviation is incalculable.