What is the critical angle of attack for the given aircraft?

The critical angle of attack is the specific angle at which an aircraft wing reaches its maximum lift coefficient before stall occurs. At this angle, the airflow begins to separate from the upper surface of the wing, causing a significant loss of lift.

In the context of the question, an answer of 20° suggests that for the given aircraft, the maximum angle of attack that can be achieved before stall happens is indeed 20°. This value is consistent with many aircraft designs, especially those that are optimized for higher performance, as they may have a higher critical angle of attack due to their aerodynamic characteristics.

Understanding the critical angle of attack is crucial for pilot decision-making, as it influences stall speed, handling characteristics, and overall flight safety. By recognizing that the critical angle of attack for this aircraft is 20°, pilots can make informed choices during maneuvers and ensure that they operate within safe limits.

Consequently, the information regarding other angles does not align with typical performance data for many aircraft, which reinforces the appropriateness of 20° as the correct critical angle of attack in this context.