AerodynamicsStability and Control
Lateral Stability
Lateral stability is the tendency of an aircraft to automatically return to a wings-level attitude after experiencing an uncommanded roll. Aerodynamic design features such as wing dihedral, sweepback, and a high-wing configuration are used to enhance this type of stability.
Key Points
- •Relates to the aircraft's stability about its longitudinal axis (roll).
- •Wing dihedral — the upward angle of the wings — is the most common design feature used to improve lateral stability.
- •Interacts closely with directional stability; an imbalance between the two can lead to spiral instability.
Exam Relevance
Required knowledge for understanding how aircraft design features counteract uncommanded roll and interact with directional stability to prevent spiral dives.
Related Terms
Learn More
Dive deeper into aerodynamics with our comprehensive study guide.
Aerodynamics Study Guide →Practice Aerodynamics Questions
Test your understanding with exam-style questions. Aerodynamics questions are free — no account needed.