Harry,
You must have been reading my mind! I was trying to ident the destroyer. Again, I didn't think of the Russian navy. I have to say the Tashkent looks much more American than Russian.
I stopped by the library today and checked the caption on the picture. Singularly uninformative and actually deceptive - I doubt that either the ships or the aircraft had much to do with the U Boat War:
"A flying boat flies over two escort vessels in harbour. The air element of escorts proved to be fundamental in the defeat of the U-Boats."