You want to transit Hell Gate, NY on 23 July 1983. What is the period of time around the AM (ZD +4) slack before ebb when the current will be less than 0.3 knot?

What will be the velocity of the tidal current 4.5 miles east of Smith Point, VA...

At 1423 you are on course 072°T at 12.2 knots, when you sight a rock awash beari...

At 2221 your course is 222°pgc at a speed of 11.2 knots, when radar detects a bu...

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...

While on a course of 019°pgc, a light bears 14° on the port bow at a distance of...

While on a course of 066°pgc, a light bears 13° on the port bow at a distance of...

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

You are on course 086°T, speed 11.7 knots. At 1013 you see a buoy bearing 088°T...

While on a course of 097°pgc, a light bears 8° on the port bow at a distance of...