[1] A crew member was Rudolf Finkler from Oberlinxweiler, Kreis St. Wendel, Germany.

2.5 nautical miles (4.6 km; 2.9 mi) north east of Funk Feuerschiff on position 51°55′N 1°41′E / 51.917°N 1.683°E / 51.917; 1.683.

The submarine was powered by one Benz six-cylinder, four-stroke diesel engine producing 80 metric horsepower (59 kW; 79 shp), an electric motor producing 175 metric horsepower (129 kW; 173 shp), and one propeller shaft.

When submerged, she could operate for 50 nautical miles (93 km; 58 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 910 nautical miles (1,690 km; 1,050 mi) at 5 knots (9.3 km/h; 5.8 mph).

She was built by AG Weser Bremen and her complement was fourteen crew members.