Revealing mistake: The ship set up for the capsize scene is supposedly mid channel and heading for England when it is bombed by the Heinkel, but it is at anchor.
Revealing mistake: In some of the shots where multiple British soldiers are together, most have their rifles (Short Magazine Lee Enfield, No. 1 Mk 3) slung or are holding them. Some of the rifles are dummy, toy rifles that look nothing like the Enfield and are just to stand in.
Answer: After running out of fuel, he kept his craft aloft as long as he could so he could shoot down the enemy plane. He then landed when and where he safely could, which was on the beach but in enemy territory. Ditching a plane in water is dangerous and would have meant far less chance of survival.
raywest ★