You get underway from the oil terminal at Marcus Hook, PA, at 0815 ZT (ZD +5) on 20 February 1983, enroute to sea. You will be turning for 11 knots. What is the approximate current when you are abreast Reedy Island?

Correct Answer: Option C — 2.0 knots ebbing

Evaluating Delaware River current tables and applying vessel speed of advance from Marcus Hook to Reedy Island establishes synchronous tidal flow. Time offsets and rate tables indicate an ebbing current velocity of approximately 2.0 knots during the transit.