“Ramsgate-class lifeboat”的意思、由来-开放百科全书

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Ramsgate-class lifeboat

释义

History
Description
Fleet
External links

{{Use dmy dates|date=October 2017}}{{Use British English|date=October 2017}}{{unreferenced|date=October 2014}}{{Infobox ship image

Ship image =

Ship caption =
}}{{Infobox ship class overview

Name = Ramsgate-class

Builders =*S. E. Saunders, Cowes

J. Samuel White, Cowes

Operators = RNLI

Norfolk and Suffolk}}

46ft 9in Watson}}

Cost = £8,500

Built range = 1925–1928

In service range = 1925–1955

Total ships completed = 3

Total ships retired = 3
}}{{Infobox ship characteristics

Hide header =

Header caption =

Ship Class =

Ship displacement = 21–23 tons

48|ft|m|abbr=on}}

ON 704/5: {{convert|48|ft|6|in|m|abbr=on}}

13|ft|m|abbr=on}}

Ship propulsion =*ON 697: 1 x 80 bhp Weyburn DE6 6-cyl. petrol

ON 704/5: 2 x 40 bhp Weyburn CE4 4-cyl. petrol

8|kn|mph|lk=in}}

Ship crew = 9
}}

The Ramsgate-class motor lifeboat was a special design produced by the RNLI for three stations covering the Thames estuary and required to operate in shallow waters.

History

Designed at a time when the RNLI was happy to build special boats for the particular needs of individual stations, the Ramsgate-class (named after the first station to operate one) was essentially an amalgam of {{Lbb|Norfolk and Suffolk}} and {{Lbb|Watson}} design principles intended for the shallow waters of the Thames estuary. The first boat, {{RNLB|Prudential|ON 697}}, was 48 feet long and single engined. The other two were 6 inches longer and twin engined. All three had long careers at their respective stations but when they were replaced between 1953 and 1955, it was with standard {{Lbc|46ft 9in Watson}} boats.

Description

The first Ramsgate was an open design with no cockpits and low end boxes. Powered by a single 80 bhp Weyburn built DE6 6-cylinder petrol engine driving a single screw, the boat retained an auxiliary sailing rig as well as six oars. The other two boats were substantially redesigned, being six inches longer and powered by two 40 bhp Weyburn built CE4 4-cylinder petrol engines driving twin screws. The sailing rig was much reduced and the boats had a shelter ahead of the cockpit covering the engine controls. Just ahead of this was a funnel for engine exhaust.

Fleet

ON is the RNLI's Official Number of the boat.	Name	Built	Builder	In service	Stations	Comments
697	Prudential	1925	S. E. Saunders, Cowes	1925–1953	Ramsgate}}	Sold November 1953
704	Greater London (Civil Service No.3)	1928	J. Samuel White, Cowes	1928–1941 1941–1945 1945–1955 1955–1957	Southend on Sea}} Relief fleet {{Lbs\|Southend on Sea}} Relief fleet	Sold September 1957
705	E.M.E.D.	1928	J. Samuel White, Cowes	1928–1953 1953–1955	Walton and Frinton}} Relief fleet	Sold January 1956

External links

RNLI

1 : Royal National Lifeboat Institution lifeboats

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