🔍 Key Concepts

• Set and drift of current and how they affect speed made good over ground versus speed through the water • Using Speed = Distance / Time to compare what you “should” make at 8.0 mph with what you actually make over the ground • How to read the current table/diagram at St. Catherine Bar Light (AHP mile 348.6) for the exact date and time (24 May, 0922)

💭 Think About

• If your engines are turning for 8.0 mph, are you looking for the speed through the water or the speed over the ground? How does current change the number you actually see over the ground? • What is the predicted current (set and drift) at St. Catherine Bar Light at 0922 on 24 May according to the AHP table/diagram? Is it helping you or opposing you? • Once you know the predicted current, how do you combine it (add or subtract) with the 8.0 mph to find the effective result that matches one of the choices?

✅ Before You Answer

• Verify the correct time zone and whether the table is in local time or zone time before picking the current value • Make sure you are reading the correct station (St. Catherine Bar Light, mile 348.6) and the correct date (24 May) in the AHP • Double‑check whether the current is with you or against you at 0922; this decides whether you add or subtract its value from 8.0 mph