SS Glentworth

SS Glentworth was a shelter deck cargo steamship built in 1920 by Hawthorn Leslie & Co. in Newcastle-upon-Tyne, England for R.S. Dalgliesh and Dalgliesh Steam Shipping Co. Ltd., also of Newcastle-upon-Tyne.[1] After the Great Depression affected UK merchant shipping in the first years of the 1930s, Dalgliesh sold Glentworth to a company controlled by Counties Ship Management (an offshoot of the Rethymnis & Kulukundis shipbroking company of London[4]) who renamed her SS Box Hill.[1]

History
United Kingdom
Name: SS Glentworth[1]
Owner:
Port of registry: Newcastle-upon-Tyne[2]
Builder: Hawthorn Leslie & Co, Newcastle-upon-Tyne[2]
Yard number: 490[1]
Launched: 1920
Completed: November 1920[2]
Out of service: 1934[1]
Identification:
Fate: Sold[1]
 
Name: SS Box Hill[1]
Namesake: Box Hill, Surrey
Owner: Surrey Hill Steamship Co. Ltd.[3]
Operator: Counties Ship Management Co Ltd, London[1]
Port of registry: London[3]
Acquired: 1934[1]
Out of service: 31 December 1939[1]
Identification:
Fate: Sunk by mine
General characteristics
Class and type: cargo ship[1]
Tonnage:
  • 5,677 GRT
  • tonnage under deck 5,310
  • 3,510 NRT[2]
Length: 450.0 ft (137.2 m)[2] p/p
Beam: 55.0 ft (16.8 m)[2]
Draught: 25 feet 6 1⁄4 inches (7.78 m)[2]
Depth: 26.4 ft (8.0 m)[2]
Installed power:
  • 620 NHP (as built);[2]
  • 586 NHP (after 1934)[3]
Propulsion:

Hawthorn Leslie reduction-geared turbine (as built);[2]

Hawthorn Leslie 3-cylinder triple expansion steam engine (after 1934)[3]
Speed: 11 knots (20 km/h)[1]
Crew: 20 or 22[1]

Details

The ship's stokehold had 12 corrugated furnaces with a combined grate area of 214 square feet (20 m2).[2] They heated three 200 lbf/in2 single-ended boilers with a combined heating surface of 8,655 square feet (804 m2).[2][3] She was built as a turbine steamer: two steam turbines with a combined power output of 620 NHP drove the shaft to the single propellor by reduction gearing.[2] However, when she changed hands in 1934 she was re-engined with a Hawthorn Leslie 586 NHP three-cylinder triple expansion steam engine.[3] The conversion retained her original boilers, but her furnaces were converted to oil burning.[3]

The ship was equipped with direction finding equipment and radio.[2]

Loss

Late in 1939 Box Hill sailed from Saint John, New Brunswick bound for Hull with a cargo of 8,452 tons wheat.[1] On New Year's Eve she was in the North Sea 9 nautical miles (17 km) off the Humber lightship when she struck a German mine.[1] The explosion broke her back and she sank almost immediately with the loss of all hands.[1]

Box Hill was Counties Ship Management's first loss of the Second World War. CSM's losses continued until just a week before the surrender of Japan in August 1945, by which time the company had lost a total of 13 ships.

Both sections of Box Hill's wreck were a hazard to shipping and showed above the water.[1] In 1952 the Royal Navy dispersed her remains with high explosive and Admiralty charts now mark her position as a "foul" ground.[1]

gollark: Neither, unless you count "running imagemagick" as A.
gollark: Video compression is very cool, though. It's basically how we have DVDs and streaming services and YouTube.
gollark: I guess so.
gollark: Videos aren't actually as big as equivalent image sequences because of very clever compression algorithms like H.264, VP9 and AV1, but still very large, especially 4K and such.
gollark: Images are *pretty* big, although new lossy compression stuff like AVIF can get really small sizes without horrible quality loss, and videos are gigantic since they're effectively images and audio stitched together at 60 frames a second (well, or 25, or various other ones).

References
  1. Lettens, Jan; Racey, Carl (30 December 2010). "SS Box Hill [+1939]". The Wreck Site. Retrieved 25 May 2011.
  2. Lloyd's Register of Shipping (PDF). London: Lloyd's Register. 1933. Retrieved 30 March 2013.
  3. Lloyd's Register of Shipping (PDF). London: Lloyd's Register. 1934. Retrieved 30 March 2013.
  4. Fenton, Roy (2006). "Counties Ship Management 1934–2007". LOF–News. p. 1. Retrieved 26 July 2010.

Sources & further reading
  • Sedgwick, Stanley (1993) [1992]. Kinnaird, Mark; O'Donoghue, K.J (eds.). London & Overseas Freighters, 1948–92: A Short History. World Ship Society. ISBN 0-905617-68-1.CS1 maint: ref=harv (link)
  • Sedgwick, Stanley; Sprake, R.F. (1977). London & Overseas Freighters Limited 1949–1977. World Ship Society. ISBN 0905617037.CS1 maint: ref=harv (link)

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