Wind correction

Disclaimer: 

▪︎This content is Not an official document and does not represent the views of Airbus or any other aviation authority.

▪︎The information provided may be incorrect or misinterpreted and should not be relied upon for decision-making. 

▪︎Always refer to official documents and consult with a qualified aviation professional before making any decisions based on the information provided in this blog post.

▪︎The information provided in this blog post is based on personal study and review.

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In modern times, commercial aircraft pilots no longer need to worry about wind correection angle, as most contemporary airplanes are equipped with flight directors that guide their maneuvers. 

However, there are instances when pilots may need to calculate a wind correction angle. This could occur, for instance, during a raw data approach in an IFR situation, either in a simulator or, in rare cases, in the real world when the system is degraded, necessitating a similar scenario to that encountered in the simulator.

 

Getting an Wind correction angle with E6B.

 

Let's consider a typical scenario with a crosswind of 30 knots and an aircraft speed of approximately 140 knots .

(taking into account a typical Category C aircraft approach speed).

According to E6B calculations, the wind correction angle is approximately 12 degrees.

Therefore, if the aircraft is on the final approach course for a runway with a heading of 360 (Runway 36), the correct heading to maintain the final approach track would be 012 degrees.

30kt crosswind wind correction with 140kt airspeed

 

When the aircraft is flying at 140 knots, which is the typical approach speed on an A320, 

a crosswind of 20 knots will result in a wind correction angle of about 8 degrees. 

Similarly, a crosswind of 10 knots will result in a wind correction angle of about 4 degrees.

 

 

Applying wind correction using PFD

 

Remember that the selected track is in blue, while the actual track is represented in green.
During a raw data approach, we adjust the heading (yellow) to align the track (green) with the desired direction in crosswind conditions

 

 

https://320study.tistory.com/15

Non-precision approach Tracking