If the towing bridle legs are not of equal length().
A、A.excessive strain is placed on the shorter leg
B、B.the shorter leg may fail
C、C.the longer leg is slack
D、D.All of the above
A、A.excessive strain is placed on the shorter leg
B、B.the shorter leg may fail
C、C.the longer leg is slack
D、D.All of the above
A、start towing by pushing ahead B、abandon the towing vessel C、retrieve the tow bridle D、relieve strain on the retrieving line
A、one-half the SWL of the main towing hawser B、three-fourths the SWL of the main towing hawser C、that of the main towing hawser D、twice that of the main towing hawser
A、A.passing a tow bridle to the tug B、B.passing a messenger line C、C.heaving in the tow bridle D、D.service lines with rocket line throwers
A、trim the tow by the bow B、trim the tow by the stern C、list the tow to windward D、adjust the length of the towing bridle
A、A.trim the tow by the bow B、B.trim the tow by the stern C、C.list the tow to windward D、D.adjust the length of the towing bridle
A、only if she is towing astern B、only if the tow exceeds 200 meters C、at any time when towing D、if the towing vessel is part of a composite unit