termed the "control point". The control point lies in the heart of an imaginary, cone-shaped area, called the "control zone", and it is within this zone that the attacker will have both sufficient time and range to react to the defender's countermeasures. Overshoots During a dogfight, the term "overshoot" refers to situations in which the attacker either crosses the enemy's flight path or passes the defender, ending up in front. Passing the defender is referred to as a "wingline overshoot". Also called a "3-9 line overshoot" or a "dangerous overshoot", this occurs when an attacking aircraft approaches too fast and accidentally crosses the defender's wingline (an imaginary line passing through the center of the aircraft at the 3 o-clock and 9 o-clock positions). A wingline overshoot is usually referred to as "flying out in front" and causes "role reversal", putting the attacker in range of the defender's weapons, and the attacker suddenly becomes the defender. When the attacker crosses the defender's flight path, the situation is called a "flight path overshoot". This happens when an attacker fails to control closure and crosses the defender's flight path from behind. Although not necessarily dangerous, it is possible for a flight path overshoot to cause the attacker to fly out in front of the defender. More often, however, it greatly reduces the attacker's angular advantage over the defender. Flight path overshoots are divided into two categories, called "control-zone overshoots" and "in-close overshoots". A "control-zone overshoot" occurs when the attacker crosses the defender's flight path from behind the front edge of the control zone. After a control-zone overshoot, the defender will continue turning in the same direction to retain the acquired angular advantage, trying to prevent the attacker from getting a good aim. An '"in-close overshoot" happens when the attacker overshoots the defender's flight path ahead of the control zone. This gives the defender the opportunity to reverse the turn and possibly to cause a wingline overshoot, allowing the defender to move in behind the attacker and reverse their roles. Circle flow Aircraft can turn either towards or away from each other. How the opponent turns in relation to the other determines the flow of the fight. If two fighters meet head-on, they will usually make a very close, neutral pass, called a "merge". After the pass, both fighters may turn to engage. If the two fighters turn in the same direction (i.e.: both