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In development - Shannon class lifeboat

The Shannon class lifeboat is set to replace the Mersey class lifeboat, which first came into service in 1989 and is now nearing the end of its planned 25-year life span. Like the Mersey, the Shannon is designed to be launched and recovered from a beach – but can also lie afloat if necessary.

The new Shannon class lifeboat is due on station in 2013. The naming of the class follows a 45-year tradition of naming lifeboats after rivers. It is the first time an Irish river has been chosen. The River Shannon is 240 miles in length and is the longest river in Ireland.

Until the class becomes fully operational it will still be known by its codename FCB2. Then it will gradually replace the Mersey class.

The Shannon was designed in-house by RNLI naval architects who have harnessed cutting-edge technology to ensure the new lifeboat meets the demands of a 21st century rescue service, building on systems developed for its big sister, the Tamar class. A prototype is currently undergoing sea trials.

The introduction of the Shannon class lifeboat into the RNLI’s fleet will be the final step in enabling the RNLI to fulfil its commitment to ensure that all its operational all-weather lifeboats have a top speed of 25 knots.​

Key features

  • Systems and information Management system
  • Self righting
  • Righting and restarting
  • Navigation and communication

The Shannon class lifeboat:

  • will be the first all-weather lifeboat to be powered by twin waterjets instead of propellers, making it more manoeuvrable and safer to operate in shallow waters, and reducing the risk of damage during launch and recovery

  • will have a top speed of 25 knots (the Mersey is capable of 17 knots)

  • will be inherently self-righting, returning to an upright position in the event of a capsize

  • will be 13m long

  • will be equipped with SIMS (System and Information Management System), which allows crew members to monitor and operate many of the boat's functions from the safety of their seats

  • will be launched from a specially designed tractor-borne carriage

  • will be recovered onto the carriage bow first after grounding on the beach.

The Shannon class will be launched and recovered from beaches independent of slipways and harbours. The vehicle allows a faster launch and recovery time than the present Mersey system by utilising a turntable to rotate the Shannon ready for its next launch.

Image of Illustration of planned fast carriage boat 2 (FCB2), to be named the Shannon class lifeboat

Date introduced​

Due on service 2013​

Launch type​

Carriage and afloat​

Number in fleet​

Planned to be 50+​

Crew​

6 (including doctor)​​

Length​

13.6m​​

Beam/width​

4.5m​

Draught/depth​

1m​

Displacement​

18 tonnes (maximum)​

Max speed​

25 knots​

Fuel capacity​

2,740 litres

Range/endurance​

250 nautical miles​

Construction​

Fibre-reinforced plastic​

Engines​

Scania D13 650hp engines

Hamilton 364 waterjets​

Survivor capacity​

Self-righting: 6 seated + 17 standing inside

Non self-righting: still to be determined during trials​

 

 ​

Boatbuilders working on the prototype Shannon class FCB2 lifeboat at Berthons boatyward, Lymington.

​Over the last year the RNLI has been focusing on requirement for the deck layout and upper steering position design. Wheelhouse interior design considerations have included seat positions, engine controls, SIMS screen, air conditioning casualty handling and more.

The prototype hull was completed at SAR Composites boatbuilding facility in Lymington, Hampshire, in May 2010. It was then transferred to Berthon where fit out of all items and systems is taking place including:

  • engines, waterjets, electrical looms and SIMS
  • the wheelhouse is being painted after which the internal fit out will take place
  • the hull and wheelhouse will be joined
  • 13-litre engines and waterjets will be used to propel FCB2.
  •  

Supacat Ltd has designed the new launch and recovery vehicle in conjunction with the RNLI. This vehicle can cope with many different beach and sea conditions found around our coasts.

The Supacat system chosen for launch and recovery of FCB2 has been completely refitted since trials with the experimental boat, including a redesign of the cab. The cab is now made of composite material with larger windows to improve the driver’s visibility.

Trials took place in June and July and a new cradle will be built to accommodate the hull shape of the prototype FCB2.

The prototype is planned to be launched in November 2011 with sea trials before the end of the year. It is hoped that operational acceptance will take place by March 2012 with the first operational Shannon class on station in 2013.

SIMS

The integrated electronic Systems and Information Management System (SIMS) offers the crew the ability to monitor, operate and control many of the boat’s systems directly from the safety of their seats.

SIMS provides access to all communications (VHF, MF, DF, intercom), navigation (radar, chart, DGPS, depth and speed) and machinery monitoring including engines, transmission, fuel and bilge.

Waterjets

The Shannon will be the first modern generation all-weather lifeboat to run on waterjets rather than propellers. This will allow the vessel to operate in shallow waters and to be intentionally beached.

Waterjets will give the coxswain greater control when alongside other craft, in confined waters and in all sea conditions. Flat out, this revolutionary craft pumps 1.5 tonnes of water per second from its waterjets.

Shannon class lifeboat FCB2 with supercat

First locations to receive new Shannon class

Dungeness

Exmouth

Hoylake

Ilfracombe

Lowestoft

Montrose ​

Scarborough

St Ives

 

Relief fleet
2 lifeboats​

  • Illustration of planned fast carriage boat 2 (FCB2), to be named the Shannon class lifeboat Image of Illustration of planned fast carriage boat 2 (FCB2), to be named the Shannon class lifeboat
  • Construction of FCB2 Boatbuilders working on the prototype Shannon class FCB2 lifeboat at Berthons boatyward, Lymington.
  • Engine room of FCB2 Engine room of the prototype Shannon class FCB2 lifeboat at Berthons boatyward, Lymington.
  • Construction of prototype Image of construction of prototype FCB2.
  • FCB2 model on launch day FCB2 launch day - hull 03 (the RNLI design) was chosen as the new hull for the FCB2 lifeboat. Photo taken at QinetiQ s Ocean Basin and Ship Tank at Haslar, Gosport on the launch day.
  • Boatbuilders Boatbuilders working on the prototype Shannon class FCB2 lifeboat at Berthons boatyward, Lymington.
  • Construction of FCB2 hull Construction of prototype FCB2 lifeboat.
  • Boatbuilders at work Boatbuilders working on the prototype Shannon class FCB2 lifeboat at Berthons boatyward, Lymington.
  • Boat builders working on the FCB2 Boatbuilders working on the prototype Shannon class FCB2 lifeboat at Berthons boatyward, Lymington.
  • FCB2 model FCB2 launch day - hull 03 (the RNLI design) was chosen as the new hull for the FCB2 lifeboat. Photo taken at QinetiQ s Ocean Basin and Ship Tank at Haslar, Gosport on the launch day.
  • Shannon prototype and launch equipment Prototype FCB2 Shannon class lifeboat in Poole Bay during the Shannon media day facility
  • Capsize trials Self-right trial of Shannon FCB2 prototype lifeboat at Berthoins marina, Lymington.
  • Recovery on to beach Prototype Shannon class lifeboat during launch and recovery trials at Dungeness. Number 6 in sequence of lifeboat being beached.
  • Rough weather trials Prototype Shannon class FCB2 lifeboat in rough seas off Portland Bill.

Out on a shout

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