TC 220°, TAS 220 kt, wind 270°/50 kt. What is approximate GS?
Answer
185 kt
Explanation
The wind is from 270°, creating a strong headwind component against a 220° track, along with a crosswind component. The along-track wind reduces the 220 kt TAS to approximately 185 kt GS. **Key takeaway:** Only the wind component along the track directly increases or decreases GS. **Glossary:** **Along-track component**: Wind component parallel to the aircraft's ground path.