While proceeding up a channel on course 010° per gyrocompass, you notice a pair of range lights in alignment with the masts of your vessel when viewed forward. A check of the chart shows the range to be 009°T and the variation to be 15°W. If the ship's course is 026°psc, what is the deviation for the present heading?

You are on course 079°T, speed 11.2 knots. At 0904 you see a daymark bearing 078...

While on a course of 138°T, a light bears 14° on the starboard bow at a distance...

While on a course of 159°T, a light bears 11° on the starboard bow at a distance...

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

The moon is full and at perigee on 20 January 1983. What is the maximum current...

The predicted time that the flood begins at the entrance to Delaware Bay is 1526...

You are steaming on a course of 246°T at 17 knots. At 2107 you observe a lightho...

You are steaming on a course of 198°T at 18.5 knots. At 0316 you observe a light...

You are underway on course 241°T at a speed of 18.2 knots. You sight a daymark b...