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STEPHENSON - IMO 7021429
Photo
details
Photographer:martin klingsick [ View profile ]
Captured:Apr 1, 1993
Title:Stephenson
Photo Category:General Cargo Ships Built 1970-1979 (over 3000gt)
Added:Dec 28, 2023
Views:307
Image Resolution:1,663 x 1,109
Description:
Built 1970 - Bremer Vulkan, Bremen
9055 gross
flag Panama
Hinton Marine(HK), Hong Kong
Vessel
particulars
Current name:SHENG DUN
Former name(s):
- Stephenson (Until 1993)
- Golden Cameroon (Until 1987)
Vessel Type:General Cargo
Gross tonnage:9,055 tons
Summer DWT:15,091 tons
Photos:8 photos by 7 photographers
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This ship exists in the following categories:
General cargo ships built 1970-1979 (Over 3000gt) - 8 photos
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2 photos
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these are reinforcement plates attached to the spreader/cross tree railing. When overhauling the cargo gear (which was usually done by the deck crew and not by any shipyard) the derrick was lowered on deck first. Before removing the upper tumbler the mast head span block with the topping lift wires had to be secured before they were lowered on deck. Due to quite a bit of weight when loosened the king post/mast railing had to be strong enough to hold this. This was normally not the case so these triangle plates were built in, one above each tumbler. With plenty of derricks and therefor the same number of mast head span blocks you need the same amount of reinforcements.
https://www.imorules.com/LAME_CH2_1.html
https://www.marinebook28.com/2023/02/parts-of-swinging-derricks.html
Here is a slightly different version of the same thing:
https://www.shipspotting.com/photos/3182939
Brgds, Manfred
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So basically the curved (-like struts I saw on tops of masts/kingposts on other vessels are also for hanging & lowering those blocks during maintenance.
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