Ramsgate-class lifeboat

Class overview
NameRamsgate-class
Builders
Operators
Preceded byNorfolk and Suffolk-class
Succeeded by46ft 9in Watson-class
Cost£8,500
Built1925–1928
In service1925–1998
Completed3
Retired3
General characteristics
Displacement21–23 tons
Length
  • ON 697: 48 ft (15 m)
  • ON 704/5: 48 ft 6 in (14.78 m)
Beam13 ft (4.0 m)
Propulsion
  • ON 697: 1 x 80 bhp Weyburn DE6 6-cyl. petrol
  • ON 704/5: 2 x 40 bhp Weyburn CE4 4-cyl. petrol
Speed8 knots (9.2 mph)
Crew9

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 Norfolk and Suffolk and Watson design principles intended for the shallow waters of the Thames estuary.

The first boat, RNLB Prudential (ON 697), was 48 feet (15 m) long and single engined. The other two were 6 inches (15 cm) 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 46ft 9in Watson boats.[1]

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.[2]

The other two boats were substantially redesigned, being six inches (15 cm) 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.[2]

Fleet

ON[a] Name Built In service[1] Station Comments[2]
697 Prudential 1925 1925–1953 Ramsgate [Note 1] Sold November 1953.
Renamed Trimilia, at Ipswich Haven Marina, October 2023.[3]
704 Greater London
(Civil Service No.3)
1928 1928–1941 Southend-on-Sea [Note 2] Sold September 1957.
Renamed ADES 1 Francisco Alvarez with ADES Uruguay. See below.[4]
1941–1945 Reserve fleet
1945–1955 Southend-on-Sea
1955–1957 Reserve fleet
705 E.M.E.D. 1928 1928–1953 Walton and Frinton [Note 3] Sold January 1956.
Renamed Capitán Christiansen, with Bote Salvavidas de Valparaiso, Chile. See below.[5]
1953–1955 Reserve fleet
  1. ^ ON is the RNLI's Official Number of the boat.

Other fleets

RNLI ON[a] Name Built In service[1] Station Comments[2][1]
704
  • ADES 1 Francisco Alvarez
  • (ADES Uruguay)
1928 1957–1991 Retired September 1991.
In storage at Ercna UTU, Carmelo, Uruguay, December 2025
705 Capitán Christiansen
(Bote Salvavidas de Valparaiso)
1928 1955–1998 Valparaiso, Chile Retired 1998.
On display at Chile National Maritime Museum, Valparaiso, December 2025.
  1. ^ ON is the RNLI's Official Number of the boat.

See also

Notes

  1. ^ Gift of Prudential Assurance Co., built by S. E. Saunders of Cowes, with a single 80-hp Weyburn DE6 6-cyl petrol engine, costing £8,417.
  2. ^ Gift of the Civil Service Lifeboat Fund, built by J. Samuel White of Cowes, with twin 40-hp Weyburn CE4 4-cyl petrol engines, costing £8,668.
  3. ^ Legacies of Mr Dewhirst, Miss Yates, Mr Barnes and Miss Watkins, built by J. Samuel White of Cowes, with twin 40-hp Weyburn CE4 4-cyl petrol engines, costing £8,700.

References

  1. ^ a b c d Leonard, Richie; Denton, Tony (2026). Lifeboat Enthusiasts Handbook 2026. Lifeboats Enthusiasts Society. p. 28–29.
  2. ^ a b c d Morris, Jeff (2008). List of British Lifeboats Part 3 (Third ed.). Lifeboat Enthusiasts Society. p. 63.
  3. ^ "Trimilia". Retrieved 14 January 2018.
  4. ^ "Greater London (Civil Service No. 3), Southend-on-Sea". RNLI. Retrieved 25 December 2023.
  5. ^ "The Capitán Christiansen at Muelle Barón". Robert Cutts. Retrieved 25 August 2009.