Which statement about Mustang area working altitudes is correct?

Which statement about Mustang area working altitudes is correct?

• A. They begin at 6,000' MSL and go to 15,000' MSL
• B. They begin at 6,500' MSL and go to 15,000' MSL
• C. They begin at 6,500' MSL to 15,000' MSL
• D. 6500' MSL to 15000' MSL or 17,500' MSL upon request

Answer: (D)

Understanding how working altitudes for a MOA are defined helps explain this one. A military operations area has a lower limit and an upper limit, both given in feet MSL, which define the vertical space where military activity may occur. For Mustang, the lower limit is 6,500 feet MSL, the usual upper limit is 15,000 feet MSL, and there is an option to extend the upper limit to 17,500 feet MSL upon request for higher-altitude training. So the statement that matches this exactly—lower limit 6,500 MSL, upper limit 15,000 MSL, with the possibility to extend to 17,500 MSL upon request—is the correct one. The other options set an incorrect base altitude (6,000) or omit the extended upper limit, which is why they’re not correct. Remember, these altitudes are always in feet MSL for MOAs.

Understanding how working altitudes for a MOA are defined helps explain this one. A military operations area has a lower limit and an upper limit, both given in feet MSL, which define the vertical space where military activity may occur. For Mustang, the lower limit is 6,500 feet MSL, the usual upper limit is 15,000 feet MSL, and there is an option to extend the upper limit to 17,500 feet MSL upon request for higher-altitude training.

So the statement that matches this exactly—lower limit 6,500 MSL, upper limit 15,000 MSL, with the possibility to extend to 17,500 MSL upon request—is the correct one. The other options set an incorrect base altitude (6,000) or omit the extended upper limit, which is why they’re not correct. Remember, these altitudes are always in feet MSL for MOAs.