Ships hit by U-boats


Dutch Steam merchant

Photo courtesy of Maritiem Museum, Rotterdam

Type:Steam merchant
Tonnage1,928 tons
Completed1921 - Dunlop, Bremner & Co Ltd, Port Glasgow 
OwnerNV Koninklijke Nederlandsche Stoomboot Mij (KNSM), Amsterdam 
Date of attack28 May 1942Nationality:      Dutch
FateSunk by U-155 (Adolf Cornelius Piening)
Position14° 35'N, 58° 19'W - Grid EE 4646
Complement32 (32 dead - no survivors)
RouteDemerara (23 May) - Port of Spain, Trinidad (26 May) - New York 
History Completed in March 1921 
Notes on event

On 26 May 1942 the Poseidon (Master W. Klijn) left Trinidad for New York where she was expected on 6 June, but did not arrive and was reported missing thereafter.

At 20.00 hours on 27 May, U-155 had sighted an unescorted steamer of estimated 5000 tons near Barbados and unsuccessfully tried to overtake the vessel, so Piening decided to attack surfaced during the night. At 05.00 hours on 28 May, a first spread of two torpedoes missed but at 06.30 hours another spread of two torpedoes was fired of which one hit the ship between the stack and the mast aft. Shortly thereafter a boiler explosion caused the ship to sink by the stern quickly. It is quite sure that his victim was the Poseidon.

Some sources claim that U-502 (Rosenstiel) sank the Poseidon in 36°N/71°W. This U-boat was lost when returning from patrol, but every attack carried out by her had been reported and the victims were identified.

On boardWe have details of 32 people who were on board

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