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'''IB1 class lifeboats''' are ]s serving in the ] ] Inshore Lifeboat (ILB) fleet. Although they are known as the "IB1" at times, they are the latest development of the D class lifeboat and as such are mainly referred to as a "D-Class". '''IB1 class lifeboats''' are ]s serving in the ] ] Inshore Lifeboat (ILB) fleet. Although they are known as the "IB1" at times, they are the latest development of the D class lifeboat and as such are mainly referred to as a "D-Class".


This class of lifeboat is one of the smallest operated by the RNLI, and they are becoming a common sight at Lifeboat Stations round the coast. Unlike other members of the ILB fleet the IB1 (D-class) does not have a rigid hull, all others with the exception of the Arancia, hovercraft & ALB Tenders are Rigid Inflatable Boats or '''RIBs'''. This class of lifeboat is one of the smallest operated by the RNLI, and they are becoming a common sight at Lifeboat Stations round the coast. Unlike other members of the ILB fleet the IB1 (D-class) does not have a rigid hull, all others with the exception of the Arancia, hovercraft & ALB tenders are rigid inflatable boats.


The IB1 normally has a crew of three or 4 and is primarily used for surfer/swimmer incidents as well as assisting in cliff incidents where the casualty is near the water. The very nature of its work requires a swift response, and the IB1 can normally be afloat within five minutes of the pagers going off. The IB1 normally has a crew of three or 4 and is primarily used for surfer/swimmer incidents as well as assisting in cliff incidents where the casualty is near the water. The very nature of its work requires a swift response, and the IB1 can normally be afloat within five minutes of the pagers going off.

Revision as of 19:16, 26 January 2014

IB1 class lifeboat
Class overview
Operators Royal National Lifeboat Institution
Preceded byD Class (EA16)
In service2004–
General characteristics
Displacement338 kg (745 lb)
Length4.9 m (16 ft)
Beam2 m (6.6 ft)
Propulsion1 × Mariner outboard engine, 50 hp (37 kW)
Speed25 knots (29 mph; 46 km/h)
Endurance3 hours at full speed
Complement3 or 4

IB1 class lifeboats are inflatable boats serving in the UK's RNLI Inshore Lifeboat (ILB) fleet. Although they are known as the "IB1" at times, they are the latest development of the D class lifeboat and as such are mainly referred to as a "D-Class".

This class of lifeboat is one of the smallest operated by the RNLI, and they are becoming a common sight at Lifeboat Stations round the coast. Unlike other members of the ILB fleet the IB1 (D-class) does not have a rigid hull, all others with the exception of the Arancia, hovercraft & ALB tenders are rigid inflatable boats.

The IB1 normally has a crew of three or 4 and is primarily used for surfer/swimmer incidents as well as assisting in cliff incidents where the casualty is near the water. The very nature of its work requires a swift response, and the IB1 can normally be afloat within five minutes of the pagers going off.

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Classes of Royal National Lifeboat Institution lifeboats
Operational fleet
All-weather lifeboats
Inshore lifeboats
Small inflatables
Historic lifeboats
Pulling and sailing lifeboats
All-weather motor lifeboats
Up to 10 knots
Above 10 knots
Inshore lifeboats
Experimental lifeboats
Royal National Lifeboat Institution
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