Ships hit during WWI


TypeArmed merchant cruiser
GRT12,515 tons (one of the largest ships hit)
Country  British
BuilderFairfield Ship Building and Engineering, Glasgow
OperatorRoyal Navy
HistoryShe was taken over on 15 September 1914 and became an armed merchant cruiser. Peace-time operator: Allan Line SS. Co., Ltd. (Canadian Pacific Ocean Services, Ltd.), Glasgow

U-boat attacks on Armed merchant cruiser Calgarian

DateU-boatLoss typePositionLocationRouteCargoCasualties
11 Mar 1918U 19 (Johannes Spieß)Sunkoff Rathlin Island
55° 25'N, 6° 15'W


Hit by three torpedoes in the North Channel.

Calgarian had sailed from Halifax with convoy HS29 on 15 February 1918. She had left the convoy escorted by Beagle and Moresby and was in sight of convoy OB50 when hit. Rosemary was detached from the escort of OB50 to take Calgarian in tow, but the hawsers parted. Anchusa, also from OB50, was ordered to take over but she sighted U19’s periscope and carried out a depth charge attack.

Rosemary and Anchusa were ordered to rejoin OB50.

Position of attack on Calgarian

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