In May 1937 the unit moved to Neustadt and was redesignated as the Unterseebootsschulflottille, ("U-boat School Flotilla"), commanded by Kapitänleutnant Heinz Beduhn.
The morning of 22 September found a single U-boat — U-9 (under the command of Kapitänleutnant Otto Weddigen) — passing through the Broad Fourteens on her way back to base.
In December 1944, twenty-five POWs escaped from Camp Papago Park into the surrounding desert, among them Knight's Cross of the Iron Cross recipient Kapitänleutnant Hans-Werner Kraus.
Her service was with the 6th Destroyer Flotilla in the Baltic Sea under the command of Kapitänleutnant Niels Bätge.
Hans-Jürgen Hellriegel (1917–1944) was a Kapitänleutnant with the Kriegsmarine during World War II
After the establishment of the Prussian Navy in 1849, he entered as an auxiliary officer, becoming a Kapitänleutnant in 1855 and a Korvettenkapitän in 1859.
On 31 January 1942 Spreewald was on her approach to Bordeaux in France when she was torpedoed by U-333, whose commander, Kapitänleutnant Peter-Erich Cremer, believed her to be a British ship.
UB-50 was commissioned later that same year under the command of Kapitänleutnant (Kptlt.) Franz Becker.
After the initial torpedo strike, the commander of U-123, Kapitänleutnant Reinhard Hardegen, surfaced his boat to finish the stricken tanker.
U-515 was sunk by the American task group 22.3, commanded by Daniel V. Gallery on April 9, 1944 and Kapitänleutnant Henke was captured along with about 40 of his crew.