RNLI SEVERN CLASS ON1220

56' 9" | Berthon Boat Co | Severn Class

RNLI Trent Class Lifeboat Engineered for Ultimate Maritime Rescue.

The Severn class lifeboat stands as the pinnacle of all-weather search and rescue engineering. As the largest operational vessel in the RNLI fleet, this 17-metre powerhouse is built to conquer the most treacherous sea conditions.
Powered by twin MTU diesel engines, it delivers a commanding 25-knot top speed. Its advanced composite hull offers unmatched durability, while the legendary self-righting design guarantees crew safety in extreme capsizing events.

Her berth at Portland Marina is available.

Available for viewing, please call ... for further information.

MECHANICAL

2x Engine Marine MTU 10V2000 M94 1600HP (engines fitted in 2013 when boat was commissioned into RNLI service in 2013)
turbocharged and intercooled marine diesels, each producing 1,600 hp
Starboard engine has approx. 4330 engine Hours
Port engine has approx. 4343 engine hours.
Gearboxes: ZF BW 195 (2.03.1) gearboxes
Propulsion Twin shafts to fixed-pitch 5 bladed propellers (enclosed/protected design to allow grounding without damage)
Manoeuvring: Hydraulic bow thruster for enhanced close
quarters handling and casualty recovery
Fuel system: Twin tanks (approx. 2 Ã— 2,800 litres) with dual
filtration and transfer systems
Auxiliary systems: Comprehensive hydraulic power packs for bow thruster, deck equipment, and Y-class inflatable
Performance: Capable of sustained high-speed operations in heavy seas with excellent fuel efficiency at cruising

ELECTRICAL

Electrical system: 24V DC primary system with extensive distribution and monitoring
Power generation: Dual engine-driven alternators supplemented by additional generators as required
Integrated monitoring: Integrated bridge system allowing
monitoring and control of engines, bilges, electrics, and
alarms from shock-mitigating helm positions
Emergency power: Redundant battery banks and
emergency lighting throughout the vessel
Lightning and grounding protection designed to marine
rescue standards

NAVIGATION

Communications: VHF and MF/HF radios with Digital
Selective Calling (DSC)
Additional sensors: Weather sensors, autopilot, depth
sounder, and compass systems
Manual Compass:

DECK

Deck layout: Spacious working deck optimised for casualty recovery with low freeboard aft/side sections for easy access
Survivor recovery: Wide side and stern access points with dedicated recovery equipment
Deck fittings: Heavy-duty towing post and bollards, mooring points, and fendering system
Non-slip surfaces and drainage systems designed for heavy weather operations
Rails and guardrails: Robust stainless steel railings with removable sections for operational flexibility

SAFETY

Self-righting: Inherently self-righting design with rapid righting and engine restart capability
Damage stability: Five watertight compartments; remains afloat with any two compartments flooded
Hull design: Hard chine semi-displacement hull for superior seakeeping and stability
Crew protection: Shock-mitigating seats at all operational positions
Survivor safety: Dedicated survivor cabin with strapping points

ACCOMMODATION

Wheelhouse: Fully enclosed, heated wheelhouse with excellent all-round visibility and multiple shock-mitigating helm positions
Survivor cabin: Located below the main deck with seating for up to 12 people plus
Crew facilities: Dedicated crew rest areas, galley facilities, and toilet/washroom

CONSTRUCTION

Hull: Fibre Reinforced Composite
Deck and superstructure: 25 mm foam-cored sandwich composite
Design features: Semi-displacement hard chine hull optimised for speed and seakeeping in extreme conditions