The Belloc  was of a Standard Ship Design known as  SD 14. One of  four, of the Bronte, Boswell and Browning class.  All built by Austin Pickersgill 1979 to 1980 with a Four Cylinder Sulzer and single turbo-charger. ( It did look big. ) and conventional Sulzer fuel injection equipment. There were  initially a few little problems with vibration but it was soon resolved and generally were very good ships for their purpose.  Regrettably the trade situation was falling away and they did not get a lot of service before being laid-up in Liverpool and then sold, Belloc in 1981 and the others in 1983.