[Jimbuna]

Originally Posted by Shakatan

Hi Jaeger.
This is U-A

Info from Uboat.net:
"The boat was almost ready as the Turkish Batiray (the second of 4 ordered from Germaniawerft, the first, Saldiray, had been delivered in June 1939) when the war in Europe broke out and she was not handed to the Turkish but rather commissioned into the German Navy.
The remaining two boats, Atilay and Yildiray, were laid down in Turkish yards under German supervision. Altiray was commissioned in 1940 but with the German engineers and designers gone due to the war Yildiray was much delayed and was not commissioned until Jan, 1946. Altiray was lost with all hands to a moored mine on 14 July, 1942.
She was briefly named Optimist by the Germans but given her UA name on 21 Sept, 1939. She was the most successful foreign U-boat in German service by far, credited with 7 of the 9 ships sunk by those boats. Cohausz sank all those 7 ships and Eckermann sank one."

I concur

This question/film link has also been posted on two separate occasions here this year so you can be assured the information from Shakatan is correct