Wehrmacht History 1935 to 1945


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M 471


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Service Data

In Service: 12 April 1943 to 25 April 1943

Production Data

Builder: v.d. Giessen & Zonens Scheepwerfen, Krimpen a/d Ijssel
Construction No:
Laid down:
Launched: 29 October 1942
Commissioned: 12 April 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 471 Minesweeper (Minensuchboot) was built in the 1940s by v.d. Giessen & Zonens Scheepwerfen shipyard located in Krimpen a/d Ijssel, 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 27. Minensuchflottille during World War II.


12 April 1943
The Minesweeper M 471 is commissioned.

The Minesweeper M 471 becomes operational with the 27. Minensuchflottille.

25 April 1943
The Minesweeper M 471 is sunk after being attacked by Allied aircraft at 1735 hrs, at Den Helder roads.



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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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