B-class lifeboat

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{{Use British English|date=March 2017}}

A B-class lifeboat is any of a series of inflatable boats operated by the Royal National Lifeboat Institution (RNLI):

Boats in this series include:

• Atlantic 21-class lifeboat, the first generation RIB operated by the RNLI
• Atlantic 75-class lifeboat, the second generation RIB operated by the RNLI
• Atlantic 85-class lifeboat, the third generation & current production model RIB operated by the RNLI

{{RNLI lifeboat classes}}