The early Liverpool-class lifeboats used by the Royal National Lifeboat Institution (RNLI) were 'Pulling and Sailing' types (P&S) and should not be confused with the later one or two engined Liverpool-class motorised lifeboats.

The Liverpool-class motorised lifeboat was a non-self-righting boat operated by the Royal National Lifeboat Institution (RNLI) from its stations around the coast of the United Kingdom and Ireland. The boats were designed for carriage launching and were developed from the Liverpool-Class Pulling and Sailing type of lifeboats - there were two types built, single and twin engined.