What type of airspace may be suspended if an aircraft approaches the Controlled Firing Area?

The correct answer involves understanding the relationship between controlled firing areas and various types of airspace. A controlled firing area is an area where activities such as missile launches or live ammunition exercises occur. Aircraft are not allowed to fly through these areas when they are active, but the specific nature of controlled firing areas is that they are established to provide a safe environment for those activities, with hazards depicted to alert pilots.

A warning area is associated with activities that might be hazardous to non-participating aircraft, typically extending from the three-mile limit outward over international waters. While aircraft can be warned of hazards in warning areas, this does not automatically lead to suspension of airspace use; instead, pilots endeavor to steer clear of the area when it's in use.

In contrast, the concept of suspension applies more closely to restricted areas, where entry is prohibited unless special permission is granted. In a restricted area, military operations, including those in controlled firing areas, can lead directly to limitations on non-military aircraft. When an aircraft approaches a controlled firing area, it is likely to encounter such restrictions more commonly than in warning areas.

Thus, a controlled firing area can lead to the suspension of airspace indicated as restricted, highlighting why the option related to warning area might be