Between October 2002 and March 2009, she was the Pentland Ferries relief vessel on the Short Sea Crossing to Orkney.

MV Claymore was built by Robb Caledon, Leith for Caledonian MacBrayne and launched on 31 August 1978.

On 11 March 2003, in gale-force winds, Claymore was blown away from her intended berth in St Margaret's Hope Bay.

Her starboard propeller became entangled in the moorings of smaller vessels and the 12 passengers were disembarked safely by the Longhope Lifeboat.

[6] In March 2009 Claymore was sold to CT Offshore ApS,[7] a Danish shipping company and moved to Svendborg.

She became probably the most travelled member of the CalMac fleet, visiting twenty-four terminals in total in 1996, her last full year with the company.

[4] In May 1997 Claymore was sold to Argyll and Antrim Steam Packet Company, a subsidiary of Sea Containers (Scotland) Ltd. For three years Claymore operated a new summer sailing from Campbeltown to Ballycastle, Northern Ireland, providing winter overhaul relief for CalMac under charter.

[4] Andrew Banks of Pentland Ferries bought Claymore for the service between St Margaret's Hope, Orkney and Gills Bay, Caithness in October 2002, where she joined the former CalMac vessel, Iona, since renamed MV Pentalina-B.