IB1 class lifeboat

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D-Class IB1
Introduced:	2004
General characteristics
Length:	4.9 m
Beam:	2 m
Displacement:	338 kg
Construction:	FRC with Hypalon coated polyester collar
Engines:	50 hp Mariner Outboard
Speed:	25 knots
Endurance:	3 hours at top speed
Crew:	3 or 4

IB1 Class Lifeboat

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 successor to the D class lifeboat and as such are mainly called the "D-Class" also.

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.

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 `bleepers` going off..