Regulations require that OSV's under 100 GT must have a steering system that is capable of moving the rudder __________.
At one-half the maximum astern speed without damage
By a required auxiliary steering system under emergency conditions when duplicated main steering power systems are provided
From 15° on one side to 15° on the other side, in 30 seconds at 7 knots, or one-half the maximum speed
From 35° on one side to 30° on the other side, in no more than 28 seconds, while making maximum headway
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