FIELD: shipbuilding. SUBSTANCE: secured in fore portion of vessel is hydraulic wheel kinematically linked with hydraulic pump which actuates in turn quants which are in contact with river bottom. Quants are made in the form of rods of hydraulic cylinders of adjustment length. EFFECT: enhanced reliability. 2 cl, 2 dwg
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Authors
Dates
1996-10-27—Published
1991-12-20—Filed