Johann-Friedrich Loos

Oberleutnant zur See (Crew XII/39)

No ships sunk or damaged.

Born  20 Apr 1921 Ulsnis, Schleswig
Died  16 Jan 1945(23)Central North Atlantic

If you can help with photo or any information on this Officer please contact us at


1 Dec 1939 Offiziersanwärter
1 Nov 1940 Fähnrich zur See
1 Nov 1941 Oberfähnrich zur See
1 May 1942 Leutnant zur See
1 Dec 1943 Oberleutnant zur See


U-boat Commands

U-248 1 Nov 1944 16 Jan 1945  (+)  1 patrol (45 days) 

Patrol info for Johann-Friedrich Loos

 U-boat Departure Arrival  
1. U-248 3 Dec 1944  Trondheim  16 Jan 1945    Patrol 1,45 days

Ships hit by Johann-Friedrich Loos

No entries found.

About ranks and decorations
Ranks shown in italics are our database inserts based on the rank dates of his crew comrades. The officers of each crew would normally have progressed through the lower ranks at the same rate.

Media links

German U-boat Commanders of World War II

Busch, Rainer and Röll, Hans-Joachim

Listing of all U-boat commanders