Z1 Leberecht Mass
July 7, 1934: Ordered.
October 10, 1934: Laid down.
August 18, 1935: Launched.
January 1, 1938: Completed.
Sept 1, 1939: Blockade and guard duties in the Eastern Baltic(Danziger Bay – Hela) with F.d.T.
Sept 3, 1939: Z1 and Z9 investigates Polish forces present at Helaand takes DD Wicher and ML Gryl under fire from 14,000 yards. The Polesreturn fire along with a shore battery of several 150mm guns. The Polishguns shoot well, forcing the Germans to increase speed to 27 knots and totake evasive action. At 0657 the shore battery hits Z1 killing 4 andwounding 4. At 0735 the Germans break off the action without achievingany results (an air strike later in the day sinks both Polish vessels).
Sept 4, 1939: Left Pillau for Swinemünde, to undergorepairs.
Sept 9, 1939: Repairs were completed.
Sept 17, 1939: Z1 and Z2 arrived in Jade (1. ZD).
Sept 25, 1939: Escorted Z8 for trials in the GermanBight
Sept 26, 1939: Rescue duties in the German Bight
Sept 29, 1939: Replaced by Z16 (guard duties) and left for Pillau,for overhaul.
Dec 23, 1939 – Jan, 1940: Stationed in Swinemünde. Very littlemovement during the winter 39/40, due to severe ice conditions in theBaltic and NorthSea.
Jan 23, 1940: Arrived in Wilhelmshaven
Feb 2, 1940: Attached to 2. Zerstörer-Flotilla.
Feb 13-14, 1940: Began loading mines for a mining operation on theEnglish east coast,together with Z5 and Z7.
Feb 15, 1940: The mining operation was cancelled.
Feb 18, 1940: Operation Nordmark began (strike against Britishshipping from Norwayacross the North Sea) with the vessels: Gneisenau, Scharnhorst, AdmiralHipper, Z20 and Z21. Another formation: Z1, Z4, Z16, Z6, Z13 and Z3followed, butwould be detached the next day. All vessels left Wilhelmshaven on thisday.
Feb 19, 1940: The Z1 group left the main formation for merchantwarfare inSkagerak.
Feb 20, 1940: The Z1 group arrived back inWilhelmshaven.
Feb 22, 1940: Operation Wikinger began (capture/destruction ofBritish fishing vessels in the North Sea). Z1, Z4, Z16, Z6, Z13 and Z3 leftWilhelmshaven. Z1 was sunk northwest of Borkum, at 19.58hr, in theHeligoland Bight. Z1 was attacked in error and hit three times by He 111sof 4/KG26. While taking evasive action, she ran into a newly laid Britishminefield and was sunk. 282 crew drown and only 60 were rescued.