RNLB ON-1265 Ivan Ellen - Severn Class.

 

The Severn has a sheerline that sweeps down for ease of survivor recovery. She is inherently self-righting and should it be knocked over in extreme weather, it will automatically right itself within a few seconds. Her propellers and rudders lie in partial tunnels set into the hull that, along with the two bilge keels, provide excellent protection from damage in shallow water. In addition to her twin engines, the Severn is fitted with a hydraulic-powered bow thruster for improved manoeuvrability. The comprehensive electronics include VHF and MF radios with DSC functionality, VHF direction finder, DGPS with electronic chart system and radar. The Severn carries a small Y boat, which is an inflatable daughter boat complete with a 15hp outboard engine. This small craft can be launched with a crane and is used in moderate conditions to access areas where the lifeboat cannot reach. Comprehensive first aid equipment includes stretchers, oxygen and Entonox. Other equipment includes a portable salvage pump carried in a watertight container. The last Severn class lifeboat was built in 2004. The lifeboats undergo a regular condition-based maintenance regime to check their condition. 

Date introduced:​ 1995

On station:​ March 2003

ON: 1265

Launch type:​ Afloat​

Number in fleet:​ 35 at stations plus 9 in the relief fleet​

Last built:​ 2004​

Crew: Nominal 7

Length:​ 17.3m

Beam/width: ​5.9m​

Draught/depth:​ 1.78m​

Displacement:​ 42 tonnes​

Max speed:​ 25 knots​

Fuel capacity:​ 5,600 litres​

Operating range/endurance:​ 250 nautical miles​

Construction:​
Hull:
fibre-reinforced composite with single-skin section below the chine and 100mm thick foam-cored sandwich
Above deck and superstructure: 25mm foam-cored sandwich

Engines:​ 2 x Caterpillar 3412 TA marine diesel; 1,250hp each at 2,300rpm

Survivor capacity:​ Self-righting – 28 - Non self-righting – 124

Funded by: Mr Harold Ivan Leach