Stealth technology. Briefly and clearly.
About Invisible plane probably heard each. Naturally, the plane is not visible in this sense, but in the understanding of the radar stations, that is, when it of sending a pulsed signal receiver for reflected waves it is not fixed. However, the question arises whether Stealth technology so perfect that for example the same American bomber B-2 be able to penetrate into enemy territory completely unnoticed for air defense equipment?
To better understand how the Stealth technology, Razberёmv very simple example. As we know from school physics course, the angle of incidence equals the angle of reflection, and in particular this also applies to the type of radio waves. Stealth technology based on the quotient reverse this, that is, when the wave is incident on a plane, it is not reflected, but in the other direction opposite to the action of the radar located on the ground, and in fact, this is why airplanes invisible body is full angular, and at first glance does not nice .
Stealth technology was kept secret for a long time
However, the creators of the aircraft invisible does not take into account one very important detail, which is based on the fact that depending on the radars of wavelengths, but around the world tend to use meter wave frequency, since it operates at a great distance, and does not require additional amplifiers radio, receivers to detect aircraft may behave completely differently.
A typical example of this was the terrible news for all of America when 1999 year, received official information about that plane, the F-117 invisibility, which costs 111 million, Was shot down by a direct hit from a missile of S-125. US authorities have arranged special investigation of the circumstances, as hundreds of tests conducted have never revealed the discovery of the aircraft. As it turned out, the solution of this incident was quite simple, used UHF band radio waves in the former Yugoslavia, which can detect the plane at a distance of up to 175 kilometers.
Thus, it is possible to sum up a little that the stealth technology is vulnerable to:
- The range of radio waves than the meter;
- The lack of a comprehensive aerodynamic shape of the aircraft, as a result, significantly reduced the combat vehicle speed;
- Radar systems, leading tracking aircraft on one or more high altitude, for example, the radar aircraft.
Despite the fact that the key to finding stealth aircraft in the sky was found even before the creation of the aircraft itself, the idea of producing truly invisible to aircraft radar leaves of aircraft alone, and it is likely in the near future, we will see new models that really can be undetected for ground-based radars.
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