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M 438


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Service Data

In Service: 10 June 1943 to 8 August 1944

Production Data

Builder: Nederlandse Scheepsbouw Mij, Amsterdam
Construction No:
Laid down:
Launched: 27 June 1942
Commissioned: 10 June 1943

Technical Data

Type: 1940 Type Minesweeper/Minensuchboot
Class: M 261 Class

Displacement: 543 tons standard 775 tons full load
Length: 62.3 m
Beam: 8.9 m
Draft: 2.82 m
Propulsion: 2 × vertical 3 cylinder triple expansion engines producing up to 2,150 shp
Speed: 17.2 knots
Range: 4,000 nautical miles at 10 knots
Crew: 65 men and officers
1 × 10.5 cm L/45
carried 120 rounds
1 × 3.7 cm L/83 SK C/30
carried 2000 rounds
2 × 2 cm MG L/65 C/30
carried 4000 rounds
7 × 2 cm MG L/65 C/30 after 1941
carried 14000 rounds
30 mines
Armour 10 mm
Operators: Kriegsmarine

Other: Minesweepers


The M 438 Minesweeper (Minensuchboot) was built in the 1940s by Nederlandse Scheepsbouw Mij shipyard located in Amsterdam, The Netherlands as a minesweeper or escort vessel for the Kriegsmarine.

Construction was transverse frame of steel construction, which was partly welded, this vessel also had eleven watertight compartments and a double bottom with hard chine foreship and tug stern. The superstructure, Bridge etc was armored up to 10 mm in thickness. The propulsion system installed in these vessels was the two vertical three cylinder triple expansion engines. And when used as minesweepers the Kabel Fern Raum Gerat (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 10. Minensuchflottille during World War II.


10 June 1943
The Minesweeper M 438 is commissioned.

The Minesweeper M 438 becomes operational with the 10. Minensuchflottille.

8 August 1944
The Minesweeper M 438 is sunk after being attacked by Allied aircraft at 1840 hrs, near Noirmoutier along with M366, M 367 and M428.



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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

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