Much of this information, the data, the photos etc. comes directly from the veterans, the veterans' organizations and is the most accurate available anywhere..............much of this information is not even known elsewhere.

The 4. U-Bootflottille (4th U-Boat Flotilla) was an Ausbildung (training/discipline) flotilla that was formed at Stettin in May 1941 and remained there until war's end

Flotillenchefs were:
     Kapitänleutnant Werner Jacobsen from May 1941 to July 1941
     Kapitänleutnant Fritz Frauenheim July 1941 to August 1941
     Kapitänleutnant Werner Jacobsen interim
     Fregettenkapitän Heinz Fischer August 1941 to the end

Fritz Frauenheim

Sharkhunters Members get all this information and a whole lot more including a monthly Magazine with facts, veteran's memories and stories you cannot get anywhere else - and when you join, you may select one of our hand-signed photos of veterans of the war as your free gift.  Send us an email at with your name, and request a FREE sample of our KTB Magazine.  You will love it - and there is NO obligation!

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Many thanks to our friend and Sharkhunters Member since 1987 GEORG HÖGEL for all the conning tower emblems used in our monthly KTB Magazine and also here on the pages of our website.  GEORG was radioman aboard U-30, the first boat into combat, the first to sink a ship (the liner ATHENIA) and the first into an occupied French port.  When that Skipper (Lemp) took command of U-110, GEORG was one of the former crew to transfer to the new boat under Lemp.  After the war, he was Professor of Art at a major German university.