Ships berthing in Rothesay Dock are normally turned before they enter the dock, and use the mouth of the River Cart to execute the manoeuvre. To help them turn, the services of one of the Clyde's tugs is usually employed, and this afternoon, the tug assigned to TÄRNVÅG was the Svitzer tug SVITZER MALLAIG. Also standing by to help the ship berth was Clyde Marine Service's BRUISER. SVITZER MALLAIG was built in 2005 at the Baltija Shipbuilding Yard in Klaipeda, Lithuania. With a maximum bollard pull of 70 tons, she is the most powerful tug currently based on the river. She is 30.3 metres long, and 385 gross tons. Two Caterpillar 3516 main engines drive two Aquamaster azimuthing thrusters, giving her exceptional handling.