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Rockstone

General properties

Vessel type: 
SHD
Flag: 
UK
Built in: 
1907

Physical properties

Length (OA): 
62.2 m
Length (BP): 
60.66 m
Width: 
10.19 m
Depth: 
5.33 m
Draft (loaded): 
3.51 m
Number of engines: 
2
Engine specs: 
pump: Smit Bolnes 360D 750 hpx275 r.p.m. prop.: Smit Bolnes 306D 750hpx275 r.p.m.
Speed (loaded): 
10.5 knts
Hopper volume: 
688 m³
Dredging depth: 
19.81 m
Suction pipe diameter: 
0.7 m
Number of dredging pipes: 
1

Page review

Status: 
Historical
Timeframe: 
1907 - 1977
Review: 
Scrapped

Last Updated

6 years 29 weeks ago

History

TimeframeEquipmentManagerReview
Timeframe: 
1907 - 1964
Equipment: 
Review: 
original build for James contracting
Timeframe: 
1964 - 1977
Equipment: 
Review: 
Westminster Gravels

About this equipment

28 March 1907 Launched by Fleming & Ferguson Ltd, Paisley as Yard Nr 357 named THAMES CONSERVANCY HOPPER No 8 for the Conservators of the River Thames, London  May 1907 completed

1909 renamed PORT OF LONDON AUTHORITY HOPPER No 8 by the Port of London Authority, London

October 1916 chartered by the Admiralty, converted into a tanker and renamed RFA SILVEROL

1927 purchased by James Dredging, Towage & Transport Co Ltd, London and renamed JAMES No 47

March 1930 Re-engined with a T. 3 cyl 13” 21½“& 35” x 27” by A. Hall & Co Ltd, Aberdeen. 100 nhp

1947 purchased by James Contracting & Shipping Co Ltd, Southampton name unchanged

1952 purchased by Foremost Dredging Co Ltd, Southampton name unchanged

1955 re-engined with 2 x 12 cyl 178 x 184 mm diesel engines by Davey, Paxman & Co Ltd, Colchester

1964 was converted into a sand suction dredger and renamed ROCKSTONE by her owners.

1964 purchased by James Contracting & Shipping Co Ltd, Southampton name unchanged

December 1964 re-engined with 1 x 6 cyl 300 x 550 mm diesel engine by N.V. Smit & Bolnes, Zierikzee. 750 bhp

1967 purchased by Westminster Gravels Ltd, Southampton name unchanged.

March 1977 demolition begun by T.W. Ward Ltd at Grays, Essex

 

 

 

 

Images

rockstone

Technical files and datasheets

No files available