47ft Watson-class lifeboat

RNLB Margaret (ON 947) at Dunbar, 1981.
Class overview
Name47ft Watson class
Builders
OperatorsRoyal National Lifeboat Institution
Preceded by46ft 9in Watson-class
Succeeded byTyne-class
Cost£34,346–£40,500
Built1955–1963
In service1956–1991
Completed18
Lost2
Retired16
General characteristics
Class & type47ft Watson
Displacement23 tons
Length47 ft (14 m)
Beam13 ft (4.0 m)
Draught4 ft 5 in (1.35 m)
Propulsion2 × 60-bhp Gardner 5LW 5-cyl. diesel
Speed9 knots
Range280 nmi (520 km; 320 mi)
Crew8

The 47 ft Watson-class was a class of non-self-righting displacement hull lifeboat, built from 1955 to 1963 and operated by the Royal National Lifeboat Institution (RNLI) between 1956 and 1991.