Question 599Navigation General

The correct answer is B) speed error. The gyrocompass is affected by the vessel's speed and direction of movement. When the vessel is moving in a direction other than east-west, the gyrocompass will experience a speed error, which is caused by the changing latitude of the vessel. This speed error is proportional to the vessel's speed and the sine of the latitude. The other options are not directly related to the gyrocompass error resulting from the vessel's movement in other than an east-west direction.