" there must be dozens of aircraft down there " .
I think it would be Thousands . Dozens or Hundreds of Lancasters , etc , etc .
Read too many books , The No's of R.A.F. Typhoons , Spitfires etc ditched is appalling.
The notorious scenario of a Lanc comeing in , shot up , on one engine trying to get through
a gap or lowering of the Cliffs , if it can maintain hight is creepy enough, let alone poor
suckers sitting in a turret behind the little pop guns when the oppo's had cannon is attrocious.
Note the post war Lincolns had 2 x 20 mm Cannon Turrets .
Wasnt till Spits had 2 x .50 & 2 x 20 mm cannon that they could do any immediate damadge.
.303s had to be point synchronised and aimed surely by a marksman for anything other than
a chance shot to do any deciseive damadge.
37 mm Cannons worked pretty could , with the machine guns just used to register on the target
then letting loose a few rounds to disintegrate the opposition .
How Deep is the English Channel ?