B-2 Spirit stealth stealth bomberPesawat (English: stealth aircraft) or aircraft called very silent [1] is an aircraft that is designed to absorb and deflect radar uses stealth technology, making it more difficult to detect. In general, the goal is to launch an attack while he was still outside enemy detection. F-117 Nighthawk is one type of stealth aircraft that use the United States Air Force in the Gulf War. Stealth aircraft has the ability to avoid detection, both in visual detection, audio, heat sensors, as well as radio waves (radar). Visually, the plane is more difficult to see if has the same color as the background color (camouflage). The audio, of course, trying to make the plane more calmly. The heat sensors, aircraft are usually detected from the heat arising from the body or from the surrounding air temperature.
Hottest part of the plane is typically the channel air exhaust or engine exhaust and the leading edge (the plane that first split the air). Heat from the exhaust can be reduced by mixing the spray engine with cold air from the outside of the fuselage before it is exhaled out of the plane and extend the exhaust pipe (such as A-4 Skyhawk Indonesia which have exhaust is longer than the standard version). Exhaust part is usually pursued by anti-aircraft missiles with infrared sensors. However, modern heat-seeking missile is now also have the ability to detect and chase the heat generated due to friction with the air surface of the fuselage. Detection of a radio wave is to prevent radio waves from the radar is reflected from the fuselage and back to the radar. Radio waves can be absorbed if the fuselage is coated RAM (Radar Absorbent Material), is reflected in the other direction, or such that the wave is lost or mutually exclusive (it is this which underlies the form of stealth aircraft which have a shape other than ordinary aircraft or a little strange .) Stealth aircraft are usually not 100% undetectable radar. But because it has the RCS (Radar Cross Section) is small, only visible on the radar screen for hordes of birds, not planes.
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