I was once in the middle of a convoy about to attack a large tanker and a whale factory ship. I made a little error in my approach calculation and ran into a small freighter that came across my path. Since my speed was only 2 knots, I sustained no damage but was forced deeper to about 20 m. Quickly I ordered PD and got the two tankers.
I wonder what the engine crew of the small freighter thought, once hearing the loud thud of my Uboat hitting the side of their merchant.
