Hypersonic "Object 4202" and its test

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2018-03-24 03:10:15

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“Object 4202” – the symbol of the new Russian project in the field of modern military hypersonic aircraft (LA). According to the authoritative foreign analytical centers, its successful implementation might neutralize those advantages in the field of strategic weapons that the United States wants to get on Russia due to the deployment of a global missile defense system.

object 4202

Classified aircraft at flight speed

LA according to its speed characteristics are divided into subsonic, supersonic and hypersonic. While the speed of their flight is usually expressed in the form of dimensionless quantities, multiples of the so-called. the Mach number, named after the Austrian physicist Ernst Mach, and denoted by the Latin letter M. the Mach Number is a dimensionless quantity and simplistically can be defined as the ratio of the speed of LA to the speed of sound in air at this altitude. Therefore, the speed of the aircraft in M 1 (or M = 1) means that it flies at the speed of sound. It should be remembered that with the altitude the speed of sound decreases, so the value of 1 M at different heights correspond to different values expressed in km/h So, the earth speed of 1 M corresponds to a value of 1224 km/h and at an altitude of 11 km – 1062 km/h.

The speed of supersonic aircraft may not exceed value of 5 M (or M = 5), a hypersonic flying just with velocities above 5 M. however, they can still maneuver using occur when flying in the air, aerodynamic forces, and also plan on distances much larger than dayperspective speeds.

Yu 71 object 4202

Physical base for the allocation of a hypersonic aircraft

The limit of 5 M between supersonic and hypersonic aircraft not chosen by chance. The fact is that when you reach this speed significantly changes the nature of the flow aerodynamic and gas-dynamic processes respectively close the housing LA and inside of a jet engine. First, a boundary layer of air flowing around the AIRCRAFT at a speed of 5 M heated to a temperature of several thousand degrees (especially in front of the frontal part of LA), and begin to disintegrate into ions (dissociate) the molecules of the gases composing the air. Physico-chemical properties of such ionized gas differ significantly from the properties of normal air, it tends to enter into chemical reactions with the surface, between it and ambient flow leads to intensive convection and radiation heat transfer. Therefore, the thermal performance of LA should be no worse than the American "space Shuttle" and Soviet “storm”.

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In addition, a hypersonic aircraft require a very special design of the jet engine, which does not resemble any of the known types. The fact that in the known engines of supersonic aircraft the speed of the current taken from the atmospheric air during the formation of the fuel-air mixture inevitably reduced to subsonic (otherwise the air can not manage to introduce the right amount of fuel). In a hypersonic aircraft is the decrease in the rate of air flow is unacceptable – due to the law of transformation of energy it will cause this overheating of the structural elements of the engine, which can not cope any known material.

object 4202 hypersound

Design Features

The Engine of a hypersonic aircraft (in the simplest case) is similar to an articulated two funnels, one of which is the intake (the narrow part is a compressor, combined with fuel injector, and also serves as a combustion chamber), and the second funnel-nozzle for exit of the burnt gases, creating thrust. This engine can only be placed under the fuselage LA, which creates a certain image of hypersonic vehicles.Yu yu 71 71 object 4202

However, such a motor can not operate at speeds less than 5-6 M, as the compressed stream is just not warming up to the temperatures needed for complete combustion of the fuel. Therefore, the most feasible way to disperse a hypersonic aircraft up to the required speed to start the engine (at least in modern times) is the use of the separated rocket accelerator as the first stage, sometimes in combination with the aircraft a accelerator. The photo below shows American hypersonic aircraft X-52, mounted under the wing strategic bomber B-52.

Russian hypersonic object 4202

Status of a hypersonic aircraft in the USA

The United States has already begun developing new types of offensive weapons. First and foremost, this is a hypersonic aircraft. So, the project is developed by the DARPA Falcon Project rocket glider, designated HTV-2, as well as projects of hypersonic vehicles Boeing (X-43, X-51) equipped with a ramjet engine such as that shown in the photo above. They can carry a warhead weighing up to 450 kg, which can be either nuclear warheads, bombs and explosives attached to them for power that can destroy protected KP of the enemy.

test object 4202

Project Boeing X-51 is capable of speeds up to 6,400 km/h for the First time this unit took to the air in may 2010. Just had two unsuccessfulstart ending the destruction of the glider. After separation from the carrier aircraft, the device accelerates additional booster made on the basis of military tactical missiles. Only upon reaching the speed of 5400 km/h turns on a jet engine of the AIRCRAFT, which disperses it to the marching speed.

What we lost from the Soviet hypersonic developments

Of Course, Russia had to fend off such a threat. The relevant Soviet development brought to mind. In the 80-ies of the last century we had advanced development in this area and even the finished product – the rocket plane, the X-90 project ‘Gala”. According to experts, the X-90 was successfully launched from the plane, specially adapted for this purpose, and clocked up 5400 km/h, which is the boundary of the hypersound. But then it was “blessed are the liberals of the 90s”, and the project was closed.

The Russian response «Washington»

Recently, the famous British military research center Janes Information Group has published the information that in February of last year in Russia on the ground “dombarovskiy" (the Orenburg region) conducted flight tests of a hypersonic aircraft under the symbol u-71 (Yu-71). Object 4202, which, according to the same center, is the generalized symbol of all Russian hypersonic development is part of our missile program.

But formally order it from the industry not the military, and the Federal space Agency of the Russian Federation in modern conditions is not excessive “cover” of this work. Head same by the ROC on the theme «the Object 4202” is “NPO Mashinostroenie” from Moscow, Reutov (missile former KB chief designer, Vladimir Chelomei, which was the main developer of cruise missiles and ballistic medium-range missiles in the USSR).

By the Way, this enterprise has information that in the late 50-ies of the last century in the CB were LA MP-1, is able to maneuver in the atmosphere using aerodynamic control surfaces at hypersonic speeds. The successful launch was conducted in 1961! So the theme of “Object 4202” has a long history.

Prospects of Russian “Hyper”

From a number of sources it is known that since the beginning of 2000-ies Russia has begun work on “military hypersonic” and is going to install the product, u-71 on the prospective ballistic missile «left». New Russian hypersonic object 4202 is able to accelerate to a speed of 11,000 km/h and can carry conventional or nuclear warhead. With such a huge speed craft may maneuver while in the atmosphere at altitudes from 40 to 50 km. So it is impossible to intercept by any of a variety of missile defense systems.

And although the combat units of the modern Intercontinental ballistic missiles also reach hypersonic flight speeds, but the trajectory of their amenable to calculation, and hence possible to intercept by missile. The product, u-71 (feature 4202) is able, unlike them, maneuver through complicated unpredictable path, changing course and altitude, so intercepting it almost impossible.

While there is reason to assume that the first test object 4202 passed in 2004. It was then the Deputy chief of the Russian General staff Baluyevsky reported at a press conference about the trials of a hypersonic aircraft, maneuvering on the course and height.

object 4202 to the shores of America at hypersonic

“Object 4202”: to the shores of America at hypersonic

The American press reacted to the test of the Russian hypersonic glider. Many Newspapers openly talking about the fact that the us strategy of prompt global strike has a serious competitor. If work on the project «the Object 4202” will be successfully completed, in 10 years Russia will get serious "trump" in the negotiations with the United States. The fact that in the presence of a hypersonic aircraft will be guaranteed to hit any target on U.S. soil just one rocket. For example, the same ‘Sarmatian”, that will set LA, the ‘Object 4202”. The hypersonic in flight speed plus maneuverability of a new type of LA – these are the new qualities of this weapon, which might make meaningless the huge expenditure of resources for the creation of the American missile defense systems.


Article in other languages:

BE: https://tostpost.com/be/nav-ny-gramadstva/17973-g-pergukavay-ab-ekt-4202-yago-vyprabavanne.html

DE: https://tostpost.com/de/news-und-gesellschaft/17983-hyperschall-objekt-4202-und-seine-pr-fung.html

ES: https://tostpost.com/es/noticias-y-sociedad/17994-giperzvukovoy-objeto-4202-y-su-prueba.html

KK: https://tostpost.com/kk/zha-aly-tar-o-am/17972-giperzvukovoy-ob-ekt-4202-zh-ne-ony-synau.html

PL: https://tostpost.com/pl/aktualno-ci-i-spo-ecze-stwo/17948-giperzvukovoy-obiekt-4202-i-jego-testowanie.html

PT: https://tostpost.com/pt/not-cias-e-sociedade/17945-hipers-nico-objeto-4202-e-sua-prova.html

TR: https://tostpost.com/tr/haber-ve-toplum/17979-hipersonik-nesne-4202-ve-onun-testi.html

UK: https://tostpost.com/uk/novini-ta-susp-l-stvo/17964-g-perzvukoviy-ob-kt-4202-yogo-viprobuvannya.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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