A 'dogfight' or 'dog fight' is
aerial combat between
fighter aircraft. The term originated during
World War I.
Modern terminology for aerial combat between aircraft is 'air-to-air combat' and '
air combat maneuvering', or ACM.

F-22 Raptors over Utah in their first official deployment, Oct. 2005, simulating a dogfight.
History
World War I
Main articles: Aviation in World War I
Dogfighting emerged in World War I. Aircraft were initially used as mobile observation vehicles and early pilots gave little thought to aerial combat—enemy
pilots at first simply exchanged waves. Intrepid pilots decided to interfere with enemy reconnaissance by improvised means, including throwing
bricks,
grenades and sometimes
rope, which they hoped would entangle the enemy plane's
propeller. This progressed to pilots firing hand-held
guns at enemy planes. Once
machine guns were mounted to the
plane, either in a turret or higher on the wings of early
biplanes, the era of air combat began. The Germans acquired an early air superiority due to the invention of
synchronization gear in 1915.
During the first part of the war, there was no established tactical doctrine for air-to-air combat.
Oswald Boelcke was the first to analyze the tactics of aerial warfare, resulting in a set of rules known as the
Dicta Boelcke. Many of Boelcke's concepts, conceived in 1916, are still applicable today, including use of sun and altitude, surprise attack, and turning to meet a threat.
World War II
During the first part of World War II, the basic ideas behind dogfighting changed little. However, the aircraft were improved drastically over their World War I counterparts. Aircraft such as the
Messerschmitt Bf 109 and the
Mitsubishi Zero surprised the Allies with their superior maneuverability and speed. Allied fighter planes, such as the
Supermarine Spitfire, would continually "bunny hop" with Axis planes, going through numerous variants in the continuing effort to gain technological superiority.
The outcome of the
Battle of Britain was largely determined by dogfighting between British and German fighters.
The
American Volunteer Group (AVG), which was later better known by its nickname the
Flying Tigers, led by
Claire Chennault, was among the first to successfully counter the highly maneuverable Japanese fighter planes. Chennault interviewed Chinese pilots carefully and learned all he could about Japanese fighter performance characteristics, tactics and methods. He realized that the Japanese fighters were extremely maneuverable and classic tactics would not work against them, so he advised pilots to work in teams rather than alone and devised tactics to take advantage of the strengths of the P-40 and avoid fighting on Japanese terms.
The
P-40 Warhawk had pilot armor, self-sealing fuel tanks, sturdy construction, powerful machine guns, and a much faster diving speed. It could defeat the more maneuverable Japanese fighters by remaining out of range and using diving attacks and reattacks after a zoom climb, or "vertically". This was important because their opponents could outmaneuver the Warhawk in a horizontal turning contest. Chennault also created a relatively primitive, but effective early warning network to enable his fighters to take off in time to gain an altitude advantage before the Japanese arrived. By using speed and resisting the deadly error of trying to out-turn the Zero, eventually the .50 caliber machine guns could be brought to bear and a single burst of fire was usually enough to shoot down the Japanese fighter aircraft, which did not have self-sealing fuel tanks or armor. In a time when most of the news was of defeats, the AVG was officially credited with 297 enemy aircraft destroyed (although author Daniel Ford discounts the total to 115). Even at Ford's lower figure, the AVG was a notable success in the first few months of 1942, when the Allies were being thrown back throughout the
Pacific theater.
Another pilot who realized that new tactics had to be devised was then-Lieutenant Commander
John S. "Jimmy" Thach, commander of
Fighting Three in San Diego. He read the early reports coming out of China and wrestled with the problem of his
F4F Wildcats being relatively slower and much less maneuverable than the Japanese planes. He devised a defensive maneuver called the "
Thach Weave" by LtCdr
James H. Flatley, another fighter tactician and contemporary of Thach. LtCdr Thach reasoned that two planes, a leader and his
wingman, could fly about 200 feet apart, and adopt a weaving formation when under attack by Japanese fighters. He later faced the
A6M Zero during the
Battle of Midway in June 1942 for the acid test of his theory. Although outnumbered, he found that a Zero would lock onto the tail of one of the fighters. In response, the two planes would turn toward each other. When the Zero followed its original target through the turn, it would come into a position to be fired on by the target's wingman, and the predator would become the prey. His tactic proved to be effective and was soon adopted by other squadrons. The Thach Weave helped make up for the inferiority of the US planes in technology and numbers, until new aircraft could be brought into service. The usefulness of this strategy survives until today.
The
Lufbery circle was another defensive maneuver used when faced with attack by superior numbers or less-maneuverable opponents. The Lufbery is executed by several aircraft turning horizontally in same direction, which forces an opponent to get down into the same circle where an attack cannot be made without coming under attack by the following fighter. When the allies fielded the
Hellcat and the
Corsair in the
Solomon Islands, the Zero could not outrun the faster Navy fighters and resorted to the Lufbery in an attempt to draw their opponents into a horizontal turning contest they could win.
Modern air combat
Even in the jet age, modern air-to-air combat can develop into dog fights. A fighter can evade a missile by abrupt maximum performance turns and employing countermeasures such as chaff and flares, provided he can detect the missile via a radar warning receiver (RWR) or visually. If beyond visual range (BVR) missiles can be defeated, pilots can press the attack and very quickly arrive at the within visual range (WVR) arena. This will typically result in a high-speed neutral pass (or merge) from which the opposing pilots must decide to turn and continue the fight with his or her opponent or continue straight and 'bug-out'. The turning fight that develops can be commonly called a dog fight, or basic fighter maneuvering (BFM).
Superiority in a dog fight can depend on a pilot's experience and skill, and the agility of his fighter when flown at minimum air speeds approaching loss of control (causing a danger of
stalling); the winner typically plays to the strengths of his own aircraft while forcing his adversary to fly at a design disadvantage. Dogfights are generally contests fought at low airspeeds, while maintaining enough energy for violent acrobatic maneuvering, as pilots attempt to remain within air speeds with a maximum turn rate and minimum turn radius: the so-called "corner speed" that often lies between 300 and 400
knots, depending on conditions. Therefore a dogfight has nothing to do with supersonic speed, but much to do with the engine power that makes supersonic flight possible. The
F-22 Raptor can stand on its steerable nozzles at less than 100 knots airspeed, yet quickly maneuver to bring its
M61 Vulcan cannon to bear on a nearby evasive target, while an
F-15 Eagle is more likely to use its thrust to maintain its relatively high corner speed, working to counter the drag caused by tight turns.
The continued importance of maintaining dogfighting proficiency was demonstrated during the
Vietnam War. American pilots flew aircraft such as the
F-4 Phantom II, equipped with long-range
AIM-7 Sparrow missiles, and
AIM-9 Sidewinder missiles. However, air crews were required not to fire any missiles without having visually identified the target first, to make absolutely sure they were not an ally, thus losing this technological advantage. The AIM-7 missile was also not very reliable, making heavy use of delicate components such as vacuum tubes which had to endure the SE Asia climate, carrier takeoffs, and high stress maneuvers. Also, they had semi-active radar homing, meaning that they used the carrier plane's radar signals to home in on the target. The missiles themselves did not have a radar system, but "listened" to the pings of the attacker's radar and used the reflection of the prey aircraft to home in on it. AIM-9 missile were heat-seeking fire-and-forget missiles, meaning that once they had a lock on a heat source, they would attempt to hit it. They were only useful in short range, and in many cases fail due to a number of factors including delicate instruments and false heat sources such as the sun. Additionally, early versions of the F-4 (prior to the E model) relied solely on missiles, having no guns nor lead-computing
Gyro gunsight, and were therefore very vulnerable in the gun-range combat that could ensue.
Lightweight, short-endurance, point-defense fighters such as the
MiG-17 and
MiG-21 are typically far more agile than heavy, long-range, fighter-bombers (see the
F-105 Thunderchief). Still, using superior tactics, the
AIM-9 Sidewinder short range missiles, and cannon fire, American pilots were able to gain significant victories in the air over North Vietnam, especially after the establishment of the US Navy's Fighter Weapons School (TOPGUN) to restore dogfighting ability to its pilots.
Referring back the previous section which focused on tactics developed during World War II , the North Vietnamese
MiG-17 resorted to use of the Lufbery maneuver on occasion when cornered by faster
F-4 Phantom fighters. Whereas the Thach Weave is used as aircraft move towards a point in space, the Lufbery is employed over a fixed point.†
With modern air-to-air
AMRAAM guided missiles greatly extending the general engagement range of
jet fighters, some experts hypothesize that dogfighting may be headed toward extinction, but others cite the occurrences in Vietnam as evidence otherwise. However, it is worth noting that there have been a great number of Beyond Visual Range (BVR) kills occurring during and after the Persian Gulf War. This was due to the improved reliability of BVR missiles, radars, and most importantly, the integration of C3I assets such as
AWACS aircraft into the realm of aerial warfare. This provided Coalition forces with a superior picture of the battlefield, and in conjunction with airspace management allowed utilization of BVR weaponry.
Despite this, the improvement of
all-aspect IR missiles coupled with helmet-mounted sights has mitigated the necessity of tail-chase attacks. In addition, Russian development of tail-mounted radar and rear-firing missiles has reduced the vulnerability to tail-chase attacks.
Yet because this feature is only present on the most modern jets, and missiles are a finite resource, The US Navy (
TOPGUN) and Air Force (
Red Flag) continue to teach postgraduate level classes in air combat maneuvering engagements. Russian aircraft manufacturers heavily emphasize superagility and dogfight capabilities in fighter design, with aircraft such as the
Su-37 or the
Su-30MKI demonstrating advanced
thrust vectoring systems to achieve these goals, pushing the aircraft to its limits to give it an advantage in combat.
USAF fighters such as the
F-15 and
F-16 tend to favor higher speeds because of their emphasis on high
power-to-weight ratio and low
wing-loading, although the
F-22 have superagility with its own vectored thrust.
See also
★
Thach Weave
★
The Scissors
★
Immelmann turn
★
Split S
★
Lufbery
★
Aerial warfare
★
List of aircraft shootdowns
References
★
Fighter Combat: Tactics and Maneuvering, , Robert L., Shaw, Naval Institute Press, 1985, ISBN 0-87021-059-9
Footnotes
# Su-37 Flanker Report from Farnborough '96 (http://www.sci.fi/~fta/Su-27.htm)