Originally Posted by
fasteray
Thank you Mark. Sounds like a good option. I have two 20 mm cannons and six total red spots or coverings over the gun ports. Some of what I have read says six 303s or two 20mm. So it had me confused as if they are covers then the plane is configured as on the ground and not in flight for a fight or else they shot through them. See my confusion?
Thanks Ray
Building on what Chad said, you have to be sure of what version of the Spitfire you are modeling. For a WWII era fighter the Spitfire had a long production run and there are 40+ major variants. Even wikipedia has a nifty article that is an into to all the Spitfire variants. Somehow I read the OP as Mark 1 - X but now see that he meant Mark IX. It looks like there were at least three variations on the armament including as many as four Hispano cannons.