So I have seen in various places that for instance the Supermarine Spitfire was not an "All Weather" fighter, now I'm not sure why this would be the case; what would be needed for it to be all weather? Or am I barking totally up the wrong tree.
Secondly what other WW2 fighters (if any) were considered all weather?
Secondly what other WW2 fighters (if any) were considered all weather?