What is the maximum bank commanded by half-bank mode?

• A. 15 degrees
• B. 25 degrees
• C. 30 degrees
• D. 5 degrees

Answer: (A)

Half-bank mode constrains the aircraft’s roll command to half of the normal maximum bank angle. If the full-bank limit is 30 degrees in normal operation, half-bank mode caps the bank at 15 degrees. This keeps turns gentler and more controllable, especially during automated commands or approach transitions, reducing abrupt roll rates and the risk of overstressing the wings. That’s why 15 degrees is the correct maximum in half-bank mode. The other values align with either full-bank limits (like 30 degrees) or are impractically small for typical maneuvering (like 5 degrees), or would correspond to a different setting (like 25 degrees).