Floating sheerleg - Wikipedia
- ️Sun Feb 20 2022
A floating sheerleg (also: shearleg) is a floating water vessel with a crane built on shear legs. Unlike other types of crane vessel, it is not capable of rotating its crane independently of its hull.
There is a huge variety in sheerleg capacity. The smaller cranes start at around 50 tons[which?] in lifting capacity, with the largest being able to lift 20,000 tons. The bigger sheerlegs usually have their own propulsion system and have a large accommodation facility on board, while smaller units are floating pontoons that need to be towed to their workplace by tugboats.
Sheerlegs are commonly used for salvaging ships, assistance in shipbuilding, loading and unloading large cargo into ships, and bridge building. They have grown considerably larger over the last decades due to a marked increase in vessel, cargo, and component size (of ships, offshore oil rigs, and other large fabrications), resulting in heavier lifts both during construction and in salvage operations.
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22,000 short tons[1]
11,000 short tons[2]
5,800 short tons[3][4][5]
5,500 short tons[6]
Kaisho
4,500 short tons[7]
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4,400 short tons[8]
Yousho
4,400 short tons[7]
Yoshida No.50
4,100 short tons[9]
Musashi
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4,100 short tons[10]
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4,000 short tons[11]
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3,600 short tons[12]
3,500 short tons[3][4][13]
Fuji
3,300 short tons[10]
3,300 short tons[14]
Yoshida No.28
3,300 short tons[15]
2,400 short tons[a][4]
Suruga
2,400 short tons[10]
Kongo
2,260 short tons[10]
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2,000 short tons[17]
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1,873 short tons[18]
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1,800 short tons[3][4][19]
1,700 short tons[20]
Shin-kenryu
1,500 short tons[7]
Shin-hakuho
1,400 short tons[21]
1,300 short tons[4]
1,300 short tons[4]
1,100 short tons[22]
1,100 short tons[23]
1,000 short tons[24]
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990 short tons[25]
880 short tons[26]
900 short tons
880 short tons[23]
880 short tons[20]
880 short tons[27]
Izu
770 short tons[10]
Yamato
770 short tons[10]
Koei-go
660 short tons[10]
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660 short tons[28][29]
550 short tons[31]
500 short tons[32]
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490 short tons[33]
440 short tons[3][34]
440 short tons[35]
440 short tons[36]
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440 short tons[36]
440 short tons[17]
440 short tons[17]
440 short tons[37]
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330 short tons[38]
330 short tons[39]
330 short tons[40]