According to Coast Guard Regulations (46 CFR), a power driven auxiliary steering gear for a vessel capable of a 20 knot service speed, must be capable of producing a specific range of rudder movement at which of the minimum speeds listed below?
⢠46 CFR requirements for steering gear on highâspeed vessels ⢠Definition of service speed vs. test or trial speed ⢠How minimum steering test speed relates to a vesselâs maximum service speed
⢠Think about why the Coast Guard would choose a particular minimum speed to test auxiliary steeringâwhat condition is most critical for safety? ⢠Consider whether the regulation is likely to require full steering performance at very low speed, at moderate speed, or at or near maximum service speed. ⢠Ask yourself: does the rule scale the required test speed as a percentage of service speed, or does it simply name a fixed test speed?
⢠Look up the exact wording in 46 CFR for auxiliary steering gear on vessels with a service speed of 20 knots or more. ⢠Verify whether the regulation specifies the test at âmaximum ahead service speedâ or at âa minimum of X knotsâ. ⢠Confirm if the rule mentions a percentage of the vesselâs maximum service speed (for example, 70â80%) when determining the speed at which the rudder performance must be demonstrated.
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