I am reading a book called, Johnnie Johnson "Spitfire Top Gun" and in the book it mentions that the cannon armed Spitfire could fire machine guns only, cannons and machine guns, cannons only anyone got any more data on this?
As it seems to work on a 3 positioned switch/trigger, I did not realise that the Spitfire had this?
btw the book is very good reading:).
RGJ