AUS-WKD-Y-L3.5

The magnetic and gyro compass; errors, and checking them

AUS-WKD-Y-M3 · Navigation in Practice · AUS-WKD-Y-M3-A Position, chart, radar, tide

The gyro is precise, tireless and electrically dependent. The magnetic compass is imprecise, cantankerous and utterly independent of your generators. That is exactly why the magnetic one is still bolted to the deckhead, and why the oral examiner will ask you about it.