Some things from the Flower class site that might interest:
The dammage left when U-379 was rammed and sunk by a Flower:
A sub in it's last moments. I think this is most likely U-444, but could also be U-432.
The photos are taken in 1943 from a Free French Flower Class that sank no U-boats, however, there
was a major convoy/wolf pack engagement that I am 90% sure this Flower class was involved in. It took
place in May '43 and U-444 and U-432 where both sunk wit 4 and 20 survivors respectively.