SM U-101 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-101 was engaged in the German campaign against Allied commerce (Handelskrieg) during that conflict. On 26 November 1917, U-101 torpedoed and damaged RFA Crenella, which managed to return to port with assistance from .
Summary of raiding history DateNameNationalityTonnageMerchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.Fate6 August 1917Rosemount3,044Sunk26 September 1917Jacqueline2,899Sunk9 October 1917Nervier1,759Sunk26 November 19177,035Damaged27 November 1917Notre Dame De Rostrenen186Sunk19 January 1918St. Clair621Damaged1 February 1918Kindly Light116Sunk2 February 1918Marie Magdeleine115Sunk2 February 1918Sofie354Sunk3 February 1918Nikolaos3,561Damaged5 February 1918Mexico City5,078Sunk20 March 1918Glenford494Sunk22 March 1918Trinidad2,592Sunk23 March 1918Jane Gray124Sunk24 March 1918John G. Walter258Sunk27 March 1918Allendale2,153Sunk30 March 1918Lough Fisher418Sunk2 April 1918Solway Queen307Sunk14 May 1918Embla157Sunk26 May 1918Princess Royal1,986Sunk27 May 1918Molière1,545Sunk28 May 1918Flora209Sunk29 May 1918Souvenir549Sunk30 May 1918Waneta1,683Sunk31 May 1918Pretty Polly19Sunk3 June 1918HMT St. John's208Sunk
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