 RNLB Edmund and Mary Robison (ON812), 6th of 13 in the Watson 41 Class. Off Princes Dock, Liverpool, on the occasion of her naming ceremony.
| |
| Class overview | |
|---|---|
| Name | 41ft Watson-class |
| Builders |
|
| Operators |  Royal National Lifeboat Institution |
| Preceded by | Various |
| Succeeded by | 42ft Watson |
| Cost | £5,600-£20,700 |
| Built | 1933-1939, 1948-1952 |
| In service | 1933-1982 |
| Completed | 13 |
| Lost | 2 |
| Retired | 11 |
| General characteristics | |
| Class and type | 41ft Watson-class motor lifeboat |
| Displacement | 14-15 tons |
| Length | 41 ft (12 m) |
| Beam | 11 ft 8 in (3.56 m) - 12 ft 3 in (3.73 m) |
| Draught | 3 ft 8 in (1.12 m) |
| Propulsion | (As built) 2x35bhp Weyburn AE6 6-cylinder petrol |
| Speed | 71⁄2 knots |
| Crew | 8 |
The 41 ft Watson-class was a non self-righting displacement hull lifeboat built between 1931 and 1952 and operated by the Royal National Lifeboat Institution between 1931 and 1981.