On 27 June your 1905 ZT DR position is LAT 24° 35.0' N, LONG 50° 15.0' W. At that time, you observe Saturn bearing 211° pgc. The chronometer reads 10h 04m 26s and the chronometer error is 01m 20s slow. The variation is 4.5° E. What is the gyro error?

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 a true course of 129°. The variation is 7°E, magnetic co...

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

Determine the time after 0300 CST (ZD +6) when the velocity of the tidal current...

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 203°. The variation is 19°E, magnetic c...

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