A link to the build of our new lifeboat can be found by clicking HERE
The following has been extracted from the RNLI’s information sheet about the Shannon class lifeboat, and additional information and pictures from our station boat. Official RNLI page from their website
The Shannon class lifeboat is an all-weather lifeboat, and is designed to operate in the worst of sea conditions. The lifeboat is self-righting, and will automatically turn the right way up in the event of a capsize.
Range/endurance – 250 nautical miles
Engines – 2 x 13-litre 650hp Scania D13 engines, Twin Hamilton HJ364 water jets
Fuel capacity – 2740 litres
Hull – fibre-reinforced plastic
(This page is under construction.)
Foredeck and Bow
All lifeboats have a unique identification number. The first number (13) indicates the length and therefore the class of the boat (13 metres, Shannon Class). The numbers after the dash (34) refer to the build number, so our boat is the 34th Shannon production boat to be built. On the deck at the bow is the sea-catch which holds the boat in position on the carriage. This can be released at either of the steering positions, enabling the crew to all be seated comfortably inside in rough launch conditions.
A Frame lifter
Stern Deck area
The aft deck has a lot of space, giving the crew a good platform for performing casualty evacuation with rescue helicopters, and making it easier to set up tow lines. The floatable salvage pump is also stowed here.
Waterjets and trim tabs
The Shannon is the first modern-generation all-weather lifeboat to run on water jets rather than propellers. This allows the lifeboat to operate in shallow waters and to be intentionally beached. Water jets give the Coxswain greater control when alongside a casualty, in confined waters and in all sea conditions. The water jet intake is located below the transom and is protected by grilles to stop large debris damaging the impellers. At maximum power, the lifeboat pumps 1.5 tonnes of water each second from it’s water jets.
Upper steering position
The Shannon has a steering position in the wheelhouse, and also an upper steering position for all-round visibility.
The specially designed suspension seats protect the volunteer crew from the most extreme wave impacts. They provide a comfortable workstation and from the safety of the seat, the crew can control and monitor the SIMS system using an integrated tracker ball and multifunction buttons within the armrest, while the helm has full control of the steering, jet buckets and throttles additional on the helm arms.
A comprehensive suite of medical equipment is carried onboard, including oxygen and full resuscitation kit. There is also Entonox (Nitrous oxide) for pain relief, large and small responder bags for individual situations. There are 3 different stretchers. The basket stretcher can be securely mounted on the wheelhouse floor for close monitoring of a casualty.
Fuel tank space
Each engine has its own 1370-litre fuel tank. These can be refuelled at a rate of 200 litres a minute, so the lifeboat will never be out of action for long. The tanks can be linked or used individually to fuel both engines together if one tank of fuel is contaminated.
The 2 650hp Scania engines help the Shannon to achieve 25 knots. The boat only needs 80% of her power to do so, meaning the engines don’t have to work so hard, and should last longer. Our boat has actually achieved 32 knots on trials!
Tiller Flat waterjet controls, filters
The shape of a boat’s hull is the most important factor in how she’ll handle at sea. During the development of the Shannon class, a number of different hull types were trialled. The chosen hull gives the smoothest ride through rough seas.
SIMS (Systems and Information Management system)
The SIMS allows crew members to control the lifeboat and access information from their seats in the wheelhouse. It means they spend less time standing up and moving around the vessel, and are therefore less prone to injury in rough weather.
SIMS provides access to…..
All communications – VHF & MF radios, Direction finder (DF), intercom
Navigation – radar, chart plotter, Global positioning system (GPS)
Boat characteristics – boat depth and speed
Machinery monitoring – engines, transmission, fuel, bilge, fire alarms
Each seat has a monitor which has access via a trackball and buttons on the seat arms. Each screen is adaptable (depending on seat position) for multiple function, including the PTZ (pitch, tilt, azimuth) camera on the mast outside, which can record all aspects of the shout or exercise. The screens are adaptable for operation in direct sunlight or in darkness.