Why does it matter? If the Germans were planning to invade Britain the Royal Navy wouldn't care that much about zerg-rushing the invasion fleet, and there were simply too many approach vectors for the Luftwaffe to protect all or enough of the transports. This is also assuming that the Royal Navy had been significantly weakened in the ten-days the Luftwaffe had been hammering after they somehow defeated the Royal Air Force. Bear in mind it took nearly three years for the US Navy [with a higher tech advantage than RN vs. Luftwaffe] to whittle the Imperial Japanese Navy down to a manageable level.
teg
Just a quick reminder, the premise of this thead is about enticing the Germans onto British soil so that they can be crushed on land. So yes the Germans have to be tricked into believing that fighter command has been squashed and to avoid loses naval units must be wihdrawn to safer bases, but bases from which they can spring the trap and shut off the Channel behind the invaders. Also just pointing out the risks, even the poort on the east coast could be reached by the LW and resupply would only need one or two freighters to get through a day which may be possible given the circumstances.