4th U-boat Flotilla

The 4th U-boat Flotilla (German 4. Unterseebootsflottille) was formed in May 1941 in Stettin under the command of Kapitänleutnant Werner Jacobsen. Nearly 300 boats received their basic training here. It was disbanded in May 1945.^[1]

4th U-boat Flotilla
Active	Raised 1941, Dissolved 1945
Country	Nazi Germany
Branch	Kriegsmarine
Type	U-boat flotilla
Garrison/HQ	Stettin
Commanders
Notable commanders	Kapitänleutnant Werner Jacobsen (May 1941 – June 1942) Kapitänleutnant Fritz Frauenheim (July 1942) Fregattenkapitän Heinz Fischer (August 1942 – May 1945)

Commanders

Duration	Rank	Commander
May 1941 - June 1942	Kapitänleutnant	Werner Jacobsen
July 1942 - July 1942	Kapitänleutnant	Fritz Frauenheim[2]
August 1942 - May 1945	Fregattenkapitän	Heinz Fischer[3]

U-boats

U-37	U-38	U-78	U-118	U-119	U-129	U-130
U-131	U-153	U-154	U-155	U-156	U-157	U-158
U-159	U-160	U-161	U-162	U-163	U-164	U-165
U-166	U-167	U-168	U-169	U-170	U-171	U-172
U-173	U-174	U-175	U-176	U-177	U-178	U-179
U-180	U-181	U-182	U-183	U-184	U-185	U-186
U-187	U-188	U-189	U-190	U-191	U-192	U-193
U-194	U-195	U-196	U-197	U-198	U-199	U-200
U-219	U-220	U-233	U-290	U-317	U-318	U-319
U-320	U-321	U-322	U-323	U-324	U-325	U-326
U-327	U-328	U-351	U-370	U-459	U-460	U-461
U-462	U-463	U-464	U-475	U-487	U-488	U-489
U-490	U-504	U-505	U-506	U-507	U-508	U-509
U-510	U-511	U-512	U-513	U-514	U-515	U-516
U-517	U-518	U-519	U-520	U-521	U-522	U-523
U-524	U-525	U-526	U-527	U-528	U-529	U-530
U-531	U-532	U-533	U-534	U-535	U-536	U-537
U-538	U-539	U-540	U-541	U-542	U-543	U-544
U-545	U-546	U-547	U-548	U-549	U-550	U-579
U-676	U-801	U-802	U-803	U-804	U-805	U-806
U-821	U-822	U-841	U-842	U-843	U-844	U-845
U-846	U-847	U-848	U-849	U-850	U-851	U-852
U-853	U-854	U-855	U-856	U-857	U-858	U-859
U-860	U-861	U-862	U-863	U-864	U-865	U-866
U-867	U-868	U-869	U-870	U-871	U-872	U-873
U-874	U-875	U-876	U-877	U-878	U-879	U-880
U-881	U-883	U-889	U-901	U-925	U-926	U-927
U-928	U-929	U-930	U-1025	U-1221	U-1222	U-1223
U-1234	U-1301	U-1302	U-1303	U-1304	U-1305	U-1306
U-1307	U-1308	U-2321	U-2322	U-2323	U-2324	U-2325
U-2326	U-2336	U-2339	U-2343	U-2346	U-2347	U-2348
U-2349	U-2350	U-2351	U-2352	U-2353	U-2354	U-2355
U-2356	U-2357	U-2358	U-2359	U-2360	U-2361	U-2362
U-2363	U-2364	U-2365	U-2366	U-2367	U-2368	U-2369
U-2371	U-3001	U-3002	U-3003	U-3004	U-3005	U-3006
U-3007	U-3008	U-3009	U-3010	U-3011	U-3012	U-3013
U-3014	U-3015	U-3016	U-3017	U-3018	U-3019	U-3020
U-3021	U-3022	U-3023	U-3024	U-3025	U-3026	U-3027
U-3028	U-3029	U-3030	U-3031	U-3032	U-3033	U-3034
U-3035	U-3037	U-3038	U-3039	U-3040	U-3041	U-3044