The stealth technology, is also referred to as "low– observable” technology, is an arrangement of systems that is present in the military vehicles, mainly the aircraft, that is hard to watch. Since RADAR as an acronym used for RA dio D etection A nd R anging, it is the essential detection innovation for aircraft, numbers of technologies related to stealth are coordinated at smothering RADAR comes back from aircraft, however the stealth technology limits other "observables" too, that is, emissions of energy of any sort that may be seen by an adversary. The stealth technology today is established on a few kinds of airplane and a couple of surface boats. Also technologies of counter– stealth are likewise under constant improvement. History Research for technology related to anti-detection started shortly after radar was innovated. Amid World War II, the Germans covered their snorkels named U-boats with material capable of absorbing radar-waves. In the after war time, researchers looked to find the characteristic of "radar echoes," endeavoring to figure out what factors add to the echoes, or radiation of electromagnetic type (strikingly at radio wavelengths), that are skipped off the objects of different sizes, shapes, composition and surfaces. Detection of aircraft turned into a distinct concern, and by 1980s the United States had manufactured models based on stealth technology, which included a model stealth bomber aircraft. Objective The metal body of the aircraft is great at reflecting signals from radar, and this makes it simple to discover and track aircrafts with radar system. The objective of stealth technology is to make aircraft invisible for the radar. There are two diverse approaches to make imperceptibility: • The aircraft may be shaped with the goal that any radar signals the aircraft reflects are reflected far from the radar system. • The aircraft can be coated with the materials that can absorb the radar signals. Applications Due to the development in stealth technology the applications are not only related to military but scientists are researching to use stealth technology in other applications also. Some applications are; • Efficiency may be expanded while in a battle ground when stealth vehicles are utilized instead of traditional vehicles, giving long haul financial savings. • Strikes from the stealth fighter aircraft keep adversaries from starting assaults and as adversaries can't find them stealth weapons are used as terrorizing armadas. • Decrease in number of casualties is achievable utilizing stealth technology in battle. The stealth design requires the coordination of numerous materials and methods. The kinds of the stealth that the maximally stealthy airplane (or various other vehicles) looks to accomplish can be sorted as RADAR, visual, acoustic, and infrared.