Was the Spitfire really that short ranged? Once the UK point defence role was passed, the later Spitfires gained range without surrendering protection or firepower through installing increasingly powerful engines.
The Spitfire could have been very long ranged if all the communication equipment, armour, self sealing tanks, bullet proof windscreen, had mauser 20mm instead of Hispano's, had both rear and underseat unsealed tanks and the pilots flew over France doing 130mph at 10,000ft, but you would have to have a very robust pilot training program to keep up and the Luftwaffe would have many more pilots with over 100 kills to their name.
The Spitfire could have been very long ranged if all the communication equipment, armour, self sealing tanks, bullet proof windscreen, had mauser 20mm instead of Hispano's, had both rear and underseat unsealed tanks and the pilots flew over France doing 130mph at 10,000ft, but you would have to have a very robust pilot training program to keep up and the Luftwaffe would have many more pilots with over 100 kills to their name.