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?

Correct Answer: Option C — 0943 to 0953

Hell Gate tidal current analysis requires utilizing the specific slack-water adjustment tables provided in the NOS current tables to determine the precise symmetrical time bracket where current speeds remain under 0.3 knot.