The minimum separation above FL290 from the vertical limits of Special Use Airspace is measured in what unit?

The minimum separation above FL290 from the vertical limits of Special Use Airspace is measured in what unit?

• A. Feet
• B. Meters
• C. Miles
• D. Inches

Answer: (A)

Vertical separation in aviation is expressed in feet. Even when talking about how far a flight level is from the vertical limits of Special Use Airspace, the distance is given in feet (often feet MSL), ensuring consistency with how altitude and boundaries are published and communicated. Units like meters, miles, or inches aren’t used for this purpose in standard airspace references.

Vertical separation in aviation is expressed in feet. Even when talking about how far a flight level is from the vertical limits of Special Use Airspace, the distance is given in feet (often feet MSL), ensuring consistency with how altitude and boundaries are published and communicated. Units like meters, miles, or inches aren’t used for this purpose in standard airspace references.