A compass rose (23) is arranged according to the magnet pole direction to determine North direction and azimuth. The support is free to rotate on the base and enables direct read-off of North direction.doi:DE202006001096Tsai
The most accurate method of determining gyrocompass error while underway is by(). A. Comparing the gyro azimuth of a celestial body with the computed azimuth of the body B. Comparing the gyro heading with the magnetic compass heading C. Determining from the chart the course made good ...