so does anyone know the actual losses on the German side?, be interesting to know how they tally up with the claims

That’s where it gets difficult.

Chris Goss has researched those Luftwaffe units in his excellent book “Bloody Biscay” Crecy 1997 ISBN 0-947554 874

As Ross says above, Lt Friedrich Maeder of 13/KG-40 intercepted a Sunderland that day. Goss records that he claimed to have shot down a Sunderland 300 km NW of Brest at 18:58 – the timings match.

In his appendix for losses from III & V/KG-40, Goss does not record any aircraft lost on that day.

It is where these things get awkward. There was a battle – no doubt epic. There are claims on both sides but the detail is lost.

AllanK