When the enemy aircraft comes into radar contact, more direct information about the speed, size, and maneuverability of the enemy plane becomes available; unfolding circumstances take priority over radio chatter. A first decision is made based on the available information so far: The pilot decides to "get into the sun" above his opponent, and acts by applying control inputs to climb. Back to observation—is the attacker reacting to the change of altitude? Then comes orient: Is the enemy reacting characteristically, or perhaps acting like a noncombatant? Is his plane exhibiting better-than-expected performance?