Atlantic 21, 75 and 85 (B class)
The Atlantic (B class) lifeboat is a rigid inflatable lifeboat which was introduced originally as the Atlantic 21 in 1972. In 1993 a slightly larger Atlantic 75 was introduced and in 2006 the Atlantic 85 became the latest development of the B class to be placed on station.
All Atlantics have manually operated self-righting mechanism and are capable of being beached in an emergency without sustaining damage to engines or steering gear. Amongst their equipment they carry VHF radios and a GPS plotter. They can be operated safely in daylight in a force 6/7 and at night in a force 5/6. In addition the new Atlantic 85 is fitted with radar and VHF direction finding equipment and has seating for a fourth crew member.
Atlantic 21 Atlantic 75 Atlantic 85
- Introduced 1972 1993 2005
- Length 21 feet 7.3m 8.5m
- Range All atlantics have a range of 3 hours at maximum speed
- Speed 30 knots 32 knots 35 knots
- Engines HP 50 (later 70) 70 (two stroke) 115 (four stroke)
- Weight 1.6 tonnes 1.8 tonnes
- Crew 3 3 4
- Construction Fibre Glass Hull Reinforced Composite (FRC) hull
- all with inflatable sponsons
Atlantic class lifeboats can be launched from Drive On Drive Off carriages (as at Criccieth), flatbed trolleys, floating boathouse or davits.
Atlantic 21 B531 "Foresters" stationed at Criccieth December 1993 to June 1994 sets out on trials November 1993
Atlantic 75 B707 "Mercurius" stationed at Criccieth June 1994 to Non exercise 22nd January 2006
Atlantic 85 prototype lifeboat on trials at Criccieth 16th June 2005
Atlantic 85 Lifeboat B823 "Doris Joan" stationed at Criccieth since November 2007