Displacement 840 t; length 82 m; beam 9 m; 31,000 hp for 36 kn.
Built 1938 by Schichau in Elbing for German Navy; in total 12 boats T1 – T12 belonged to that class;
Photo was taken after 11th September 1940 in Cherbourg, showing two boats of the class, however it is unclear, which boats are shown (could be clarified by navy logbooks). The bow on the left belongs to TANNENPERG (see posted photo of that ship); Photo scanned from color slide