Investigations of Delft Ship Structures Laboratory comprise general and theoretical considerations, experimental investigations under laboratory conditions, and measurements on derricks in real rigging conditions; report is given on comparative study of properties of conventionally stepped derrick and corresponding cylindrical boom; conclusions are not in favor of stepped derrick, so that further investigation on subject of "stepping" was made; it was found that cylindrical form is favorable.
Investigations into strength of ships' derricks -- 1
Int Shipbldg Progress
International Shipbuilding Progress ; 12 , n 129
1965
20 pages
Article (Journal)
English
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Investigations into the strength of ships’ derricks1
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