You wish to check the deviation of your standard magnetic compass. You find a natural range that you steer for and note that the gyrocompass heading is 034°, and the heading by standard magnetic compass is 026°. The gyro error is 1°W. Variation is 9°E. What is the deviation for that heading?

On 6 June 1983, at 1719 EST (ZD +5), what will be the predicted height of tide a...

You are at anchor in the anchorage at the entrance to Delaware Bay. You weigh an...

The charted depth alongside the south face of Mystic Pier, Charlestown, MA, is 3...

You are on course 251°pgc and 241° per magnetic compass, when you observe a rang...

You desire to make good 152°T. The magnetic compass deviation is 4°E, the variat...

You desire to make good a true course of 129°. The variation is 7°E, magnetic co...

You desire to make good a true course of 132°. The variation is 10°W, magnetic c...

You desire to make good a true course of 203°. The variation is 19°E, magnetic c...

You desire to make good a true course of 223°. The variation is 2°E, magnetic co...

Determine the duration of the first PM slack water on 3 March 1983, east of the...