EASA NAV(A)intermediate
Place the steps for calculating an estimated time of arrival (ETA) in the correct chronological order, starting from the given route distance, true airspeed (TAS), wind velocity, and estimated time of departure (ETD).
Answer
Determine the wind component along the route, Calculate groundspeed using TAS and the wind component, Divide route distance by groundspeed to calculate flight time, Add flight time to the estimated time of departure (ETD)
Explanation
First resolve the wind relative to the route, then obtain groundspeed. Divide route distance by groundspeed to find flight time, and add that duration to the departure time. **Key takeaway:** Wind correction precedes time and ETA calculation. **Glossary:** ETD: estimated time of departure; ETA: estimated time of arrival.
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