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Fighter Combat - Tactics and Maneuvering

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FIGHTER WEAPONS 55<br />

speed targets. Higher altitudes tend to reduce missile maneuverability <strong>and</strong><br />

increase reaction time.<br />

Particularly with rear-quarter AAMs, but also to some extent with<br />

all-aspect missiles, a further benefit of a target speed advantage is the<br />

increased difficulty encountered by an unseen attacker in placing his<br />

aircraft within the envelope <strong>and</strong> satisfying his aiming requirements in the<br />

reduced time made available by a faster target. Especially with short-range<br />

rear-quarter weapons, for an attacker to have a reasonable chance of<br />

achieving a firing position on a nonmaneuvering target, he must be in an<br />

ideal position even before the target is detected visually.<br />

Aircraft designers can decrease fighter vulnerability to missile attack by<br />

using many camouflage <strong>and</strong> suppression techniques. These include reducing<br />

the aircraft's radar reflectivity by using nonreflecting materials <strong>and</strong><br />

radar-absorbing paint, when practical. Reflectivity is also sensitive to<br />

engine inlet design <strong>and</strong> placement, <strong>and</strong> to the physical size <strong>and</strong> shape of<br />

various aircraft parts. IR signatures can be suppressed by using special<br />

jet-nozzle designs, by monitoring exhaust placement, by using engines<br />

with cooler exhausts, <strong>and</strong> by adding chemicals to the exhaust. Even optical<br />

tracking can be made more difficult by using camouflage techniques that<br />

reduce the aircraft's contrast with the background.<br />

Besides reducing the size of his vulnerable envelope, the target has other<br />

means of preventing a missile shot. Countering an attacker's attempts to<br />

satisfy his aiming requirements is a matter of generating LOS rates that<br />

exceed the shooter's turn capability. The techniques involved with this are<br />

discussed in much greater detail in the chapters on maneuvering.<br />

The weapon where the man is sitting in is always superior against the other.<br />

Colonel Erich "Bubi" Hartmann, GAF<br />

Denying the attacker a favorable target aspect is also a function of<br />

maneuvering. This is one of the primary defenses against weapons with a<br />

limited-aspect capability, such as rear-quarter heat seekers. Obviously,<br />

such a defense is more difficult to accomplish against all-aspect missiles.<br />

Some aspects, however, are less favorable than others for almost any<br />

weapon. We have already discussed the problems encountered with<br />

Doppler-guided missiles <strong>and</strong> beam aspects, especially in look-down situations.<br />

Special limitations of particular weapons, such as this one, often<br />

may be exploited to prevent or degrade a shot. For example, power reductions<br />

<strong>and</strong> IR-masking techniques can be used at critical times to prevent or<br />

delay heat-seeking missile acquisition, <strong>and</strong> to degrade guidance after<br />

launch.<br />

A special problem encountered by most radar tracking systems is<br />

known as glint. This is a phenomenon that may cause the radar to shift<br />

auto-track among several targets that have approximately the same range<br />

(pulse radars) or closing velocity (Doppler radars) <strong>and</strong> that are closely<br />

spaced along the LOS of the tracking beam. The radar may tend to lock on<br />

one target, then another, in a r<strong>and</strong>om, unpredictable manner. In the case of<br />

very large targets, the radar may shift lock from one part of the aircraft to<br />

another continuously. A missile relying on such a radar for guidance often

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