You are conducting an operational test of your main steering gear system. The main steering gear must be capable of moving the rudder from 35 degrees on either side to 35 degrees on the other with the vessel at its deepest loadline draft and running at maximum ahead service speed, and from 35 degrees on either side to 30 degrees on the other in what minimum time frame?

Question

You are conducting an operational test of your main steering gear system.  The main steering gear must be capable of moving the rudder from 35 degrees on either side to 35 degrees on the other with the vessel at its deepest loadline draft and running at maximum ahead service speed, and from 35 degrees on either side to 30 degrees on the other in what minimum time frame?

Accepted Answer

Option B: 28 seconds. 46 CFR 58.25-45 requires the main steering gear to move the rudder from 35 degrees on one side to 30 degrees on the other in no more than 28 seconds at maximum service speed. This performance standard ensures the vessel maintains adequate maneuverability during emergency situations at full load.