Which of the following is NOT identified as a critical area of a UAS flight physical?

• A. Visual acuity
• B. Color vision
• C. Depth perception
• D. Taste

Answer: (D)

In a UAS flight physical, the focus is on visual functions that directly affect safe piloting. Visual acuity matters because you need to clearly resolve details on displays, in the environment, and on the aircraft itself. Color vision is important since many indicators, lights, and warnings use color coding; if color discrimination is poor, critical cues could be missed. Depth perception is essential for judging distances, spacing, and relative motion, which influences takeoffs, landings, obstacle clearance, and traffic awareness. Taste, however, has no impact on flight safety or the ability to operate a UAS, so it isn’t identified as a critical area.