In Service: 21 October 1938 to 1945
                    
                    
                    
                    Ordered:
                    Builder: Flender-Werke 
                    AG, Lübeck-Siems
                    
Construction No: 242
                    
Laid down: 
                    Launched: 29 September 1937
                    
Commissioned: 21 October 1938
                    
                    
                    
                    Type: 1935/39 Type Minesweeper/Minensuchboot
                    
Class: M 1 Class
                    
                    
Displacement: 682 tons standard 874 tons full load
                    
Length: 68.1 m
                    
Beam: 8.7 m
                    
Draft: 2.65 m
                    
Propulsion: 2 × Lentz uniform expansion engines 
                    producing up to 3,200 shp
                    
Propellers: 2
                    
Speed: 18.3 knots
                    
Range: 5,000 nautical miles at 10 knots
                    
Crew: 90 men and officers
                    
Armament:
                    2 × 10.5 cm L/45
                    carried 480 rounds
                    2 × 3.7 cm L/83 SK C/30
                    carried 3000 rounds
                    2 × 2 cm MG L/65 C/30
                    carried 4000 rounds
                    4 × 2 cm MG L/65 C/30 after 1942
                    carried 6000 rounds
                    30 mines
                    
Armour 10 mm
                    
Aircraft:
                    Electronics: 
                    Operators: Kriegsmarine
                    
Variants: 
                    
                    Other: Minesweepers 
                    
                    Articles: 
                    
                    
                    
                    The M 7 Minesweeper (Minensuchboot) was built in the 1930s 
                    by 
Flender-Werke 
                    AG shipyard located in Lübeck-Siems, Germany as a 
                    minesweeper or escort vessel for the Kriegsmarine.
                    
                    Construction was longitudinal and ransverse frame of steel construction, 
                    which was partly welded, this vessel also had twelve watertight 
                    compartments and a double bottom. The superstructure, Bridge 
                    etc was made from light alloys. The propulsion system installed 
                    in these vessels was the two Lentz uniform expansion engines. 
                    And when used as minesweepers the Kabel Fern Raum Gerät 
                    (KFRG) system was employed, which used generators producing 
                    60 V, 20 kW to power the magnetic sweeping gear.
                    
                    This vessel went on to serve in the 1. Minensuchflottille during World 
                    War II. 
                    
                    
                    
                    21 October 1938
                    The Minesweeper M 7 is commissioned.
                    
                    
1938
                    The Minesweeper M 7 becomes operational with the 1. Minensuchflottille.
                    
                    
15 November 1945
                    The Minesweeper M 7 is seized as a prize of war by the Russians.
                    
                    
1945
                    The Minesweeper M 7 is transferred to the Black Sea fleet 
                    as a T 9 class minesweeper.
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    German Warships, 1815-1945: Major Surface Vessels.
                    ISBN-10: 0851775330
                    
                    German Warships, 1815-1945: U-boats and Mine Warfare Vessels.
                    ISBN-10: 155750301X
                    
                    German warships of the Second World War.
                    ISBN-10: 0668040378
                    
                    For a complete list of 
sources