What do "Angels" refer to in an aviation context?

In an aviation context, "Angels" refers to the height of friendly aircraft expressed in thousands of feet. For example, if an aircraft is at "Angels 10," it is flying at an altitude of 10,000 feet. This terminology provides a clear and concise way for pilots and air traffic controllers to communicate altitudes in a format that is universally understood among military and civilian aviators alike.

Using "Angels" helps eliminate ambiguity when discussing operational altitudes, which is crucial for maintaining safety and situational awareness in the airspace. Given the complexity of air operations and the need for rapid, clear communication, this terminology is especially vital in combat and tactical situations.

The other options refer to different aspects of military aviation that do not relate directly to how altitude is communicated for friendly aircraft. For instance, altitude of enemy aircraft focuses on a different aspect of situational awareness, while operational readiness status and tactical maneuvers pertain to different operational considerations entirely.