Hi Jim

Very interesting

According to Lloyd's War Losses, the Amsterdam was sunk 6-miles SE by E of Coquet Island and that is the problem. There are no large wrecks in either of the positions suggested.

I can add :
Hans Kükenthal’s KTB for the 24 February 1918, states:
" - convoy steering south, in sight consists of six steamers and is protected by destroyer and fishing boat
- Convoy steering zig zag course
- Fired from first tube
- Hit on laden steamer of 2,500 tons
- Loud explosion - since destroyer is close behind stern of boat went to forty metres quickly”

That 2,500-ton steamer was the 806-ton SS AMSTERDAM (ex AVON 1877 - Rankine Line Ltd., Glasgow) which he torpedoed and sunk without warning.

Cheers Ron