For straight-in non-precision approaches, the angle deviation threshold is no greater than how many degrees?

• A. 40° or less
• B. 10° or less
• C. 20° or less
• D. 30° or less

Answer: (D)

Straight-in non-precision approaches rely on following a published final approach course without vertical guidance. Because there’s no vertical guidance to help you, the procedure provides a lateral protection area that allows you to be offset from the final approach course by a certain angle and still remain on the approach. That angle deviation threshold is 30 degrees or less. Staying within 30 degrees helps ensure you remain inside the protected final-approach airspace and can reliably identify the runway and continue to the minimum descent altitude. Exceeding this deviation would place you outside the designed protection, typically requiring a re-intercept or missed approach.