AC 120-109

Definition

AC 120-109 is an advisory circular issued by the Federal Aviation Administration (FAA) that provides guidance on stall prevention and recovery training for pilots. It outlines best practices for understanding stall phenomena, including aerodynamic principles and specific recovery techniques to ensure pilots are equipped to handle stalls safely during flight operations.

5 Must Know Facts For Your Next Test

1. AC 120-109 emphasizes the importance of understanding stall recognition and prevention in various flight maneuvers, including turns and slow flight.
2. The circular recommends regular stall training for pilots, encouraging proficiency in recognizing pre-stall symptoms to prevent unintended stalls during flight.
3. AC 120-109 outlines specific recovery techniques that should be practiced in simulators or real aircraft under controlled conditions to prepare pilots for real-life situations.
4. It highlights the role of aircraft design in stall characteristics, indicating that different aircraft types may have unique stall behaviors requiring tailored training approaches.
5. The guidance in AC 120-109 aims to reduce the risk of accidents related to stalls by fostering a culture of safety and continuous learning among pilots.

Review Questions

• How does AC 120-109 contribute to a pilot's understanding of stall phenomena?
  • AC 120-109 enhances a pilot's understanding of stall phenomena by providing detailed information about the causes and effects of stalls, along with preventive measures. The advisory circular focuses on the importance of recognizing pre-stall indications, emphasizing that awareness and proper training can significantly reduce the chances of experiencing a stall. By incorporating both theoretical knowledge and practical recovery techniques, AC 120-109 serves as a vital resource for pilots aiming to enhance their skills in managing stall situations.
• What specific recommendations does AC 120-109 provide regarding stall recovery techniques?
  • AC 120-109 provides clear recommendations for effective stall recovery techniques, emphasizing actions like reducing the angle of attack and smoothly applying power. It encourages pilots to practice these recovery methods in both simulators and actual flight scenarios to build muscle memory and confidence. The circular also stresses that recovery should be initiated promptly and without hesitation, as delay can exacerbate the situation and lead to more severe consequences.
• Evaluate the implications of AC 120-109 on pilot training programs and overall aviation safety.
  • The implications of AC 120-109 on pilot training programs are significant, as it sets a standard for incorporating stall prevention and recovery into curricula. By advocating for regular stall training and focusing on situational awareness, this guidance promotes higher safety standards within the aviation community. As pilots become more adept at recognizing and recovering from stalls, the overall rate of stall-related accidents is expected to decline, ultimately contributing to safer flying environments and enhancing public confidence in aviation.

Related terms

Stall: A stall occurs when an aircraft exceeds its critical angle of attack, leading to a loss of lift and potentially causing a dangerous situation if not recovered properly.

Angle of Attack (AoA): The angle between the chord line of an aircraft's wing and the oncoming airflow, which plays a crucial role in lift generation and stall conditions.

Recovery Techniques: Methods employed by pilots to regain control of an aircraft after a stall, typically involving reducing the angle of attack and applying power.