[1] Salmaster was built by Hall, Russell & Company, Aberdeen, as Yard No.

[2] The ship was powered by two Ruston & Hornsby diesels, totalling 4,000 brake horsepower (3,000 kW), driving two screw propellers and giving a service speed of 15 knots (28 km/h; 17 mph).

Tasks included the laying and maintenance of underwater targets, navigation marks and moorings as well as marine salvage.

[1][2] Salmaster was sold in 2001 to British marine services and survey company Gardline of Great Yarmouth, converted for research and survey work, and was renamed Ocean Endeavour.

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