Which statement best describes Coordinating Altitude (CA) in military airspace control?

Which statement best describes Coordinating Altitude (CA) in military airspace control?

• A. An ACM used to separate airspace users, typically defining the transition altitude between different control elements.
• B. A weather parameter used in flight planning.
• C. A ground-based communication frequency range.
• D. A radar-based separation technique.

Answer: (A)

Coordinating Altitude is an Airspace Coordination Measure used to separate airspace users and to define the transition altitude between different control elements. This altitude boundary helps ensure that as aircraft move between control areas or elements (for example, from one controller sector to another or between higher and lower control structures), there is a clear handoff point and maintained separation. It’s not a weather parameter, it’s not a ground-based radio frequency range, and it’s not a radar separation technique. The concept centers on agreeing at what altitude responsibilities shift so traffic flows safely and efficiently.

Coordinating Altitude is an Airspace Coordination Measure used to separate airspace users and to define the transition altitude between different control elements. This altitude boundary helps ensure that as aircraft move between control areas or elements (for example, from one controller sector to another or between higher and lower control structures), there is a clear handoff point and maintained separation. It’s not a weather parameter, it’s not a ground-based radio frequency range, and it’s not a radar separation technique. The concept centers on agreeing at what altitude responsibilities shift so traffic flows safely and efficiently.