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The Navy converted four tugboats into minesweepers. These ships had been built by three different shipyards; Van der Kuyk & van der Ree in Rotterdam, Fa. Koopman in Dordrecht, and J & A van der Schuyt in Papendrecht.
Service history
All M class minesweepers were still in service during the Second World War, but none of them was able to escape to the United Kingdom; three of the four ships fell in German hands (M 3 was scuttled). After the war M 1 and M 4 were returned to the Netherlands, and re-entered service as tugboats.
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von Münching, L.L. (1978). Schepen van de Koninklijke Marine in de Tweede Wereldoorlog (in Dutch). Alkmaar: De Alk. ISBN90-6013-903-8.
Raven, G.J.A., ed. (1988). De kroon op het anker: 175 jaar Koninklijke Marine (in Dutch). Amsterdam: De Bataafsche Leeuw. ISBN90-6707-200-1.
Roetering, B., ed. (1997). Mijnendienst 1907-1997 90 jaar: feiten, verhalen en anekdotes uit het negentigjarig bestaan van de Mijnendienst van de Koninklijke Marine (in Dutch). ISBN90-90-10528-X.