SD Victoria

 SD Victoria is a  support ship operated by Serco Marine Services in support of the United Kingdom's Naval Service.

Hulin

 Tanker passing Greenock having been at the fuel terminal at Rothesay Dock.

Deo Gloria

 Deo Gloria suction dredger heading for Great Harbour Greenock.

SEA RANGER BRD632

 Sea Ranger passing the Isle of Kerrera off Oban Bay

SS Uganda

SS Uganda in Valetta Harbour Malta.

 SS Uganda was a British steamship that had a varied and notable career. She was built in 1952 as a passenger liner, and successively served as a cruise ship, hospital ship, troop ship and stores ship. She was laid up in 1985 and scrapped in 1992.

Barclay Curle and Company of Whiteinch, Glasgow built Uganda for the British-India Steam Navigation Company (BI). She was a passenger and cargo liner .

Notes courtesy of wikipedia.

Megan M

 Megan M workboat at Ardrossan Harbour.

HMS Mermaid

 Mermaid, built by William Denny and Brothers, Dumbarton, Scotland, was laid down on 8 September 1942, launched on 11 November 1943, and completed 12 May 1944.

HMS Mermaid was a Modified Black Swan-class sloop of the Royal Navy. Mermaid saw service as a convoy escort during the Second World War, taking part in the sinking of two German submarines while escorting Arctic convoys to and from the Soviet Union.

Mermaid was sold to Federal Republic of Germany in 1959, where she was renamed Scharnhorst and used as a training ship.