General ability to actively engage other aircraft of similar form and function, typically through guns, missiles, and/or aerial rockets.
Ability to intercept inbound aerial threats by way of high-performance, typically speed and rate-of-climb.
Ability to conduct aerial bombing of ground targets by way of (but not limited to) guns, bombs, missiles, rockets, and the like.
Surveil ground targets / target areas to assess environmental threat levels, enemy strength, or enemy movement.
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.
Developed ability to be used as a dedicated trainer for student pilots (typically under the supervision of an instructor).