invisible fighter jet

Invisible Fighter Jet - The stealth aircraft is designed to avoid detection using various technologies that reduce the reflection/emission of radar, infrared,

The F-117 Nighthawk is the first operational aircraft designed specifically for stealth technology. Other examples of stealth aircraft include the B-2 Spirit, B-21 Raider, F-22 Raptor,

Invisible Fighter Jet

Although no aircraft is completely invisible to radar, stealth aircraft make it very difficult for conventional radar to accurately identify or track the aircraft, raising concerns that the aircraft will evade radar detection and/or prevent radar-guided weapons from being targeted effectively. . Stealth is a combination of low-observation (LO) and active output, such as low-observation radars, radios, and laser designators. This is usually combined with practical measures, such as carefully planning all mission operations to minimize the aircraft's radar cross-section, as routine operations such as making sharp turns or opening bomb bays can double the radar return of a stealth aircraft.

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This is achieved through a complex philosophy of reducing the ability of an adversary's systems to detect, track or attack its own aircraft.

This philosophy also takes into account air temperature, noise and other air pollutants, as they can also be used to detect them. Systems exist or have been proposed to mitigate the effects of non-tracking technologies, such as IRST (infrared search and track) to detect emissions.

The United States (in 1977), Russia (in 2000) and China (in 2011) have all taken up fighter jets.

, the only stealth aircraft in service are the Northrop Grumman B-2 Spirit (1997), the Lockheed Martin F-22 Raptor (2005); Lockheed Martin F-35 Lightning II (2015);

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And many other countries are developing their own designs. There are also many planes that have been reduced to visibility, either by choice or as a secondary feature.

In the 1999 NATO bombing of Yugoslavia, two stealth aircraft were used by the United States, the veteran F-117 Nighthawk and the newer B-2 Spirit bomber. The F-117 performed its usual high-altitude attack mission and was effective, although one F-117 was shot down by an Isayev S-125 'Neva-M' missile brigade commanded by Colonel Zoltán Dani.

During World War I, the Germans tried to use Cellon (cellulose acetate), a transparent material, in an attempt to reduce military aircraft. Special examples of the Fokker E.III Eindecker monoplane fighter, the Albatros C.I two-seater biplane and the Linke-Hofmann RI prototype heavy aircraft were flown by Cellon. However, it proved to be ineffective and ineffective as the sunlight shining from the line made the plane more visible. The equipment was also found to be subject to rapid deterioration from sunlight and temperature changes during flight, so attempts to design a suitable aircraft were not pursued.

In 1916, the British converted a small SS-class aircraft for the purpose of night reconnaissance over German lines on the Western Front. With a silent engine and a black gas bag, the craft was invisible and inaudible on the ground, but several night flights over German-occupied territory provided little intelligence and the idea was abandoned.

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Almost three decades later, the Hort Ho 229 bomber that flew over Nazi Germany in the final years of World War II was found to have some stealth characteristics due to its lack of a stable surface. (an important feature of all stealth aircraft plus features). of all planes flying like the Ho 229). Tests conducted in 2008 by the Northrop-Grumman Corporation revealed that the aircraft's configuration would have prevented the Ho 229 from appearing as a primary signal in the upper HF band, the 20 MHz to 30 MHz radar d Chain Home of the United Kingdom early warning if the aircraft was going to at high speeds (about 550 mph (890 km/h)) at very low altitudes: 50-100 feet (15-30 m).

Modern stealth aircraft were first made possible when Dys Overholser, a mathematician working at Lockheed Aircraft in the 1970s, adopted a mathematical model developed by Petr Ufimtsev, a Soviet scientist, to develop a computer program called the Echo 1. The Echo made it possible. radar forecast. plane signatures are made of panels, called facets. In 1975, engineers at the Lockheed Skunk Works discovered that a ground-based aircraft could have a very low radar signature because the surface transmits almost all of the radar energy it receives. Lockheed built a demonstration aircraft, the Lockheed Blue, named "Hopeless Diamond", a reference to the famous Hopeless Diamond and its shape and predicted collapse. Because advanced computers were available to control aircraft designed for stealth but in turbulent skies like Have Blue, for the first time designers realized it was possible to make an aircraft that seemed invisible to radar.

The reduced radar is just one of five things the designers said to create a design like the F-22. The F-22 was also designed to hide the emissions so that they would be difficult to detect by infrared ("heat seeking") missiles on the surface of the missile or in the air. Designers also talked about making the plane less visible, controlling radio transmissions and reducing noise.

The first use of a combat aircraft was in December 1989 during Operation Just Cause in Panama. On December 20, 1989, two United States F-117 fighter jets bombed a Panamanian Air Force Base in Rio Hato, Panama. In 1991, the F-117s were tasked with conducting critical strikes in Iraq during the first phase of Operation Desert Storm and were the only aircraft authorized to operate in Baghdad.

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The design of stealth aircraft is always designed to minimize radar and heat detection. The first priority for designers is to meet the following requirements, which ultimately determine the success of the aircraft:

Early stealth aircraft were designed with at least a partial radar cross section (RCS) focus rather than flight performance. Stealth aircraft like the F-117 Nighthawk are not maneuverable in the air on all three axes and require constant correction of the flight deck (FBW) to keep it flying.

And Jack Northrop in 1940, this design allowed for stable aircraft with adequate yaw control, and no vertical surfaces such as rudders.

Early aircraft (such as the F-117 and B-2) are fireproof, since hot air increases the infrared footprint, and flying faster than the speed of sound would generate visible sonics, as well as heating the plane's skin over the plane, which also increases the infrared footprint. Because of this, its performance in the anti-aircraft training required for dogfighting will never match that of dedicated aircraft. This was not important in the case of these two planes, as both were intended to be bombers. Advanced design techniques make available designs such as the F-22 without compromising flight performance. New stealth aircraft such as the F-22, F-35 and Su-57 have performance that matches or exceeds that of conventional fighter jets due to advances in other technologies such as flight control systems, engines, and airframes. and tools

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It is often said that the high level of computers and electronic devices available in hijacked planes make them vulnerable to hacking. This is highly unlikely, and certainly systems like Tamara and Kolchuga, which are often referred to as stealth radars, are not designed to detect stray electromagnetic fields. These systems are designed to detect high-energy airborne sources such as radar and communications signals. Stealth aircraft are used intentionally to avoid or reduce emissions.

The radar warning sign uses conventional radar energy that is used mechanically, while the fifth generation aircraft use low-interference and non-reciprocating aircraft.

Stealth planes are still vulnerable to detection during and immediately after using their weapons. Since stealth payloads (minus RCS bombs and cruise missiles) are not yet generally available, and where missile attacks cause radar returns, stealth aircraft carry all weapons forward. As soon as the weapons doors are opened, the aircraft's RCS will increase and the antiquated radar system will be able to identify the hijacked aircraft. Although the aircraft will recover as soon as the sea doors are closed, the missile defense system has a short window to test the aircraft.

This weakness is addressed by working in a way that minimizes the risk and impact of temporary acquisitions. The height of the B-2 uses the flight time for defensive weapons so it is not possible to measure the aircraft during the deployment of weapons.

Popular Mechanics Magazine January 1989 Stealth Fighter Invisible Plane T3

Newer designs of stealth aircraft, such as the F-22 and F-35, can open their fuselages, drop missiles, and return to the stealth plane in less than a second.

They need a way to guide the weapon to hit the target while the weapon is in flight. This power compares the operation of the expansion and the gate op.

Aircraft such as the F-22 Raptor and F-35 Lightning II Joint Strike Fighter can also carry additional weapons and

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