Was a German invasion of Britain in 1940 ever feasible?

[afleitch]

If we bear in mind that the fall of France happened so fast, that by the time of the Battle of Britain, Germany had European superiority, except in the Balkans (where 'diplomacy' more so than militarism secured that last piece of the puzzle)

The Battle of Britain was an extension of that 'diplomacy', designed to knock Britain out of the war. Even if it had succeeded, in terms of inflicting greater structural air and naval damage, even with 'superiority', the Germans would be hampered by geography from air supply to coastal tides.

I agree with Al's takeaway from the 1974 wargame. The only further point to make is that a few military historians have more recently pondered that a broad beach head, could have been secured and supplied for much longer than the game assumed; enough to see a formal diplomatic withdrawal rather than an evacuation, which could have been part and parcel of a wider 'peace' offered to Britain.