A Drift Angle Calculator helps pilots and navigators determine the angle by which an aircraft or vessel deviates from its intended course due to crosswinds. The drift angle is essential for correcting navigation errors and maintaining an accurate heading.
Formula of Drift Angle Calculator
どこ：
- Drift Angle is measured in degrees
- Cross Wind Speed is the component of wind perpendicular to the heading (in knots or mph)
- Aircraft Ground Speed is the speed of the aircraft relative to the ground (in the same unit)
Drift Angle Table
| Cross Wind Speed (knots) | Aircraft Ground Speed (knots) | Drift Angle (degrees) |
|---|---|---|
| 10 | 100 | 5.71 |
| 20 | 100 | 11.31 |
| 30 | 100 | 16.70 |
| 40 | 100 | 21.80 |
| 50 | 100 | 26.57 |
| 10 | 200 | 2.86 |
| 20 | 200 | 5.71 |
| 30 | 200 | 8.53 |
| 40 | 200 | 11.31 |
| 50 | 200 | 14.04 |
Example of Drift Angle Calculator
A pilot is flying an aircraft with a ground speed of 150 knots. The crosswind component is 25 knots. Using the formula:
Drift Angle = tan⁻¹(25 / 150)
Drift Angle = tan⁻¹(0.1667) ≈ 9.46°
The pilot must adjust the aircraft's heading by approximately 9.46° to compensate for the crosswind and maintain the intended flight path.
最も一般的な FAQ
Calculating the drift angle is crucial for accurate navigation. It helps pilots and mariners adjust their heading to stay on course despite crosswinds or water currents.
Yes, an incorrect heading due to an unaccounted drift angle can lead to longer flight paths, increasing fuel consumption.