Paul, this must be a pretty rare image of the British Centaur after her change of ownership and renaming as Earl Of Sky, given that the conversion project never got off the ground.
As you suggest, the Centaur was one of a number of crude carriers ordered in 1957 by BP Tankers. There were 5 C class ships built of 67.000 DWT, including the Centaur. A further 2 had their size increased from their original orders and became the 75,000DWT British Mariner, (John Brown) and British Ensign, (Cammell Laird). Finally 2 more had their original size dramatically increased and became BPs first 100.000 DWT + ships. These were British Admiral, built by Vickers, & British Argosy built by Swan Hunter. They both ended up as 112,000 DWT.
The 5 C class were British Confidence, (John Brown), British Captain, (Cammell Laird), British Commerce, (J.L. Thompson), British Centaur, (Harland & Wolff) and British Commodore, (Fairfield SB). The first two named had steam turbine main engines and were found to be uneconomical in service lasting only 10/12 years before being scrapped in 1976. The motor ships were more successful, Commerce & Centaur giving 18 years service and the Commodore 16. Details of the Centaur are as follows:
Call Sign GQMH. 67,741DWT, LOA 815.75, Summer Draught 42.32. Built by Harland & Wolff, Belfast, in 1966; 9-cyl 2 S.C.S.A. (840x1800mm) B&W type oil engine by builder developing 18.000 bhp @ 110 rpm and giving a service speed of 16 knots. Tank configuration 6 centre and 10 wing with a further 2 wing tanks for clean ballast only. 1 pump room with 3 main cargo pumps and a separate stripping system, maximum discharge rate 4,920 tw/hr. Butterworth tank cleaning equipment and permanently installed Gas Freeing and Inert Gas systems.
Sold to Harrisons (Clyde) Ltd. 1983, 28.06.1984 arrived Ulsan for demolition.
I never sailed on the Centaur but did do a couple of trips on the Commodore as ex 3/O. Comfortable ship running Finnart, Gulf, Finnart or, for a change, Angle Bay!