The draught for the Ramillies class was very similar to that of the and subsequent, with the only realdifferences to be found in the shape of the underwaterhull. There were two distinct sub-groups; four ships were built in the Royal Dockyards to the original design, approved on 25 April1760 – although the name-ship Ramillies had originally been ordered as a Bellona-class unit. Slade subsequently amended his design for the ships which were to be built by commercial contractors – this modified design, with slightly amended dimensions, being approved on 13 January1761.