Stealth Technology Principle
The butterfly at 10 m can be compared to a conventional aircraft which appears as a big speck on the radar screen and the fly at that interval can be compared to a stealth aircraft which doesn't appear on the radar screen because it can't resolve the stealth aircraft at that interval. At a distance of 1 m, the perception of the wing can be likened to spotting of stealth aircraft by modern radars. But just like the run, these radars will have a hard time moving the stealth plane and fastening onto it even if it manages to spy it. By the time multiple radars, IR sensors, Visual sensors are combined to get a lock on the target, the stealth aircraft would have completed its mission and would be on the way home. So from this, we can learn that stealth technology doesn't make an stealth airplane invisible to radar but it delays the identification of the aircraft until it is too late for the opponent. So the accurate word for stealth aircraft is' low-observable' aircraft.
Stealth technology works on the principle of eliminating radar thinkings. This can be done by either:
• Deflecting Radio Wave (Shaping of the surfaces)
• Absorbing Radio Wave (RAM coatings)
The radio waves are electromagnetic waves going frequencies. The methods of divergence and absorption of EM movements augment each other in order to create a stealth aircraft/ send. It is important to note that these methods shorten the RCS of the object to such an extent that it fails to appear on most radar screens. They aren't invisible, but extremely hard to identify and generally are seen at ranges of 10-20 km by ultra-modern radars compared to 150-300 km for non-stealth objects. This enables them to maintain these components of the catch which is extremely determined in a conflict.