Hi Rainer, thanks for the prompt reply, the reason I asked about U65 and the other boats, is because in Jak Mallmann-Showell's book 'U-boat Warfare' he shows from June 15th U25, U28, U30, U32, U47, U51 and U65 in a E - W patrol line at North Channel, and U29, U43, U46, U48 and U101 from the 17th also a E - W patrol line, at Western channel.Regards John