The Germans had little more than river barges to conduct a cross channel invasion in 1940. At least the balance of air power was in their favor at the time although it was slipping.
Britain was already out producing the Germans in pilots and aircraft when the war started in 1939.
By 1943 the Germans had little of a surface fleet left and it was in the Baltic and the Tirpitz in Norway.
They had fled in the 1942 'Channel Dash'.
Seriously, dude, get some focus.