Russian intercontinental ballistic missiles. How the USSR created the world's first intercontinental ballistic missile
The ICBM is a very impressive human creation. Huge size, thermonuclear power, a column of flame, the roar of engines and the menacing roar of launch... However, all this exists only on the ground and in the first minutes of launch. After they expire, the rocket ceases to exist. Further into the flight and to carry out the combat mission, only what remains of the rocket after acceleration is used - its payload.
With long launch ranges, the payload of an intercontinental ballistic missile extends into space for many hundreds of kilometers. It rises into the layer of low-orbit satellites, 1000-1200 km above the Earth, and is located among them for a short time, only slightly lagging behind their general run. And then it begins to slide down along an elliptical trajectory...
What exactly is this load?
A ballistic missile consists of two main parts - the booster part and the other for the sake of which the boost is started. The accelerating part is a pair or three of large multi-ton stages, filled to capacity with fuel and with engines at the bottom. They give the necessary speed and direction to the movement of the other main part of the rocket - the head. The booster stages, replacing each other in the launch relay, accelerate this warhead in the direction of the area of its future fall.
The head of a rocket is a complex load consisting of many elements. It contains a warhead (one or more), a platform on which these warheads are placed along with all other equipment (such as means of deceiving enemy radars and missile defenses), and a fairing. There is also fuel and compressed gases in the head part. The entire warhead will not fly to the target. It, like the ballistic missile itself earlier, will split into many elements and simply cease to exist as one whole. The fairing will separate from it not far from the launch area, during the operation of the second stage, and somewhere along the way it will fall. The platform will collapse upon entering the air of the impact area. Only one type of element will reach the target through the atmosphere. Warheads. Up close, the warhead looks like an elongated cone, a meter or one and a half long, with a base as thick as a human torso. The nose of the cone is pointed or slightly blunt. This cone is a special aircraft whose task is to deliver weapons to the target. We'll come back to warheads later and take a closer look at them.
Pull or push?
In a missile, all warheads are located in the so-called breeding stage, or “bus”. Why bus? Because, having first been freed from the fairing, and then from the last booster stage, the propagation stage carries the warheads, like passengers, at given stops, along their trajectories, along which the deadly cones will disperse to their targets.
The “bus” is also called the combat stage, because its work determines the accuracy of pointing the warhead to the target point, and therefore combat effectiveness. The propulsion stage and its operation is one of the biggest secrets in a rocket. But we will still take a slight, schematic look at this mysterious step and its difficult dance in space.
The breeding step has different forms. Most often, it looks like a round stump or a wide loaf of bread, on which warheads are mounted on top, points forward, each on its own spring pusher. The warheads are pre-positioned at precise separation angles (at the missile base, manually, using theodolites) and point in different directions, like a bunch of carrots, like the needles of a hedgehog. The platform, bristling with warheads, occupies a given position in flight, gyro-stabilized in space. And at the right moments, warheads are pushed out of it one by one. They are ejected immediately after completion of acceleration and separation from the last accelerating stage. Until (you never know?) they shot down this entire undiluted hive with anti-missile weapons or something on board the breeding stage failed.
The photographs show the breeding stages of the American heavy ICBM LGM0118A Peacekeeper, also known as MX. The missile was equipped with ten 300 kt multiple warheads. The missile was withdrawn from service in 2005.
But this happened before, at the dawn of multiple warheads. Now breeding presents a completely different picture. If previously the warheads “stuck” forward, now the stage itself is in front along the course, and the warheads hang from below, with their tops back, upside down, like bats. The “bus” itself in some rockets also lies upside down, in a special recess in the upper stage of the rocket. Now, after separation, the breeding stage does not push, but drags the warheads along with it. Moreover, it drags, bracing itself with four “paws” placed crosswise, deployed in front. At the ends of these metal legs are rearward-facing thrust nozzles for the expansion stage. After separation from the accelerating stage, the “bus” very accurately, precisely sets its movement in the beginning of space with the help of its own powerful guidance system. He himself occupies the exact path of the next warhead - its individual path.
Then the special inertia-free locks that held the next detachable warhead are opened. And not even separated, but simply now no longer connected with the stage, the warhead remains motionless hanging here, in complete weightlessness. The moments of her own flight began and flowed by. Like one individual berry next to a bunch of grapes with other warhead grapes not yet plucked from the stage by the breeding process.
K-551 "Vladimir Monomakh" is a Russian strategic nuclear submarine (Project 955 "Borey"), armed with 16 solid-fuel Bulava ICBMs with ten multiple warheads.
Delicate movements
Now the task of the stage is to crawl away from the warhead as delicately as possible, without disturbing its precisely set (targeted) movement with gas jets of its nozzles. If a supersonic jet of a nozzle hits a separated warhead, it will inevitably add its own additive to the parameters of its movement. Over the subsequent flight time (which is half an hour to fifty minutes, depending on the launch range), the warhead will drift from this exhaust “slap” of the jet half a kilometer to a kilometer sideways from the target, or even further. It will drift without obstacles: there is space, they slapped it - it floated, not being held back by anything. But is a kilometer sideways really accurate today?
Project 955 Borei submarines are a series of Russian nuclear submarines of the fourth generation “strategic missile submarine cruiser” class. Initially, the project was created for the Bark missile, which was replaced by the Bulava.
To avoid such effects, it is precisely the four upper “legs” with engines that are spaced apart to the sides that are needed. The stage is, as it were, pulled forward on them so that the exhaust jets go to the sides and cannot catch the warhead separated by the belly of the stage. All thrust is divided between four nozzles, which reduces the power of each individual jet. There are other features too. For example, if on the donut-shaped propulsion stage (with a void in the middle - this hole is worn on the rocket's upper stage like a wedding ring on a finger) of the Trident II D5 missile, the control system determines that the separated warhead still falls under the exhaust of one of the nozzles, then the control system turns off this nozzle. Silences the warhead.
The stage, gently, like a mother from the cradle of a sleeping child, fearing to disturb his peace, tiptoes away into space on the three remaining nozzles in low thrust mode, and the warhead remains on the aiming trajectory. Then the “donut” stage with the cross of the thrust nozzles is rotated around the axis so that the warhead comes out from under the zone of the torch of the switched off nozzle. Now the stage moves away from the remaining warhead on all four nozzles, but for now also at low throttle. When a sufficient distance is reached, the main thrust is turned on, and the stage vigorously moves into the area of the target trajectory of the next warhead. There it slows down in a calculated manner and again very precisely sets the parameters of its movement, after which it separates the next warhead from itself. And so on - until it lands each warhead on its trajectory. This process is fast, much faster than you read about it. In one and a half to two minutes, the combat stage deploys a dozen warheads.
American Ohio-class submarines are the only type of missile carrier in service with the United States. Carries on board 24 ballistic missiles with MIRVed Trident-II (D5). The number of warheads (depending on power) is 8 or 16.
The abysses of mathematics
What has been said above is quite enough to understand how a warhead’s own path begins. But if you open the door a little wider and look a little deeper, you will notice that today the rotation in space of the breeding stage carrying the warheads is an area of application of quaternion calculus, where the on-board attitude control system processes the measured parameters of its movement with a continuous construction of the on-board orientation quaternion. A quaternion is such a complex number (above the field of complex numbers lies a flat body of quaternions, as mathematicians would say in their precise language of definitions). But not with the usual two parts, real and imaginary, but with one real and three imaginary. In total, the quaternion has four parts, which, in fact, is what the Latin root quatro says.
The dilution stage does its job quite low, immediately after the boost stages are turned off. That is, at an altitude of 100−150 km. And there is also the influence of gravitational anomalies on the Earth’s surface, heterogeneities in the even gravitational field surrounding the Earth. Where are they from? From uneven terrain, mountain systems, occurrence of rocks of different densities, oceanic depressions. Gravitational anomalies either attract the stage to themselves with additional attraction, or, conversely, slightly release it from the Earth.
In such irregularities, the complex ripples of the local gravitational field, the breeding stage must place the warheads with precision accuracy. To do this, it was necessary to create a more detailed map of the Earth's gravitational field. It is better to “explain” the features of a real field in systems of differential equations that describe precise ballistic motion. These are large, capacious (to include details) systems of several thousand differential equations, with several tens of thousands of constant numbers. And the gravitational field itself at low altitudes, in the immediate near-Earth region, is considered as a joint attraction of several hundred point masses of different “weights” located near the center of the Earth in a certain order. This achieves a more accurate simulation of the Earth's real gravitational field along the rocket's flight path. And more accurate operation of the flight control system with it. And also... but that's enough! - Let's not look further and close the door; What has been said is enough for us.
The ICBM payload spends most of its flight in space object mode, rising to an altitude three times the height of the ISS. The trajectory of enormous length must be calculated with extreme accuracy.
Flight without warheads
The breeding stage, accelerated by the missile towards the same geographical area where the warheads should fall, continues its flight along with them. After all, she can’t fall behind, and why should she? After disengaging the warheads, the stage urgently attends to other matters. She moves away from the warheads, knowing in advance that she will fly a little differently from the warheads, and not wanting to disturb them. The breeding stage also devotes all its further actions to warheads. This maternal desire to protect the flight of her “children” in every possible way continues for the rest of her short life. Short, but intense.
After the separated warheads, it is the turn of other wards. The most amusing things begin to fly away from the steps. Like a magician, she releases into space many inflating balloons, some metallic things that resemble open scissors, and objects of all sorts of other shapes. Durable balloons sparkle brightly in the cosmic sun with the mercury shine of a metallized surface. They are quite large, some shaped like warheads flying nearby. Their aluminum-coated surface reflects a radar signal from a distance in much the same way as the warhead body. Enemy ground-based radars will perceive these inflatable warheads as well as real ones. Of course, in the very first moments of entering the atmosphere, these balls will fall behind and immediately burst. But before that, they will distract and load the computing power of ground-based radars - both long-range detection and guidance of anti-missile systems. In ballistic missile interceptor parlance, this is called “complicating the current ballistic environment.” And the entire heavenly army, inexorably moving towards the area of impact, including real and false warheads, balloons, dipole and corner reflectors, this whole motley flock is called “multiple ballistic targets in a complicated ballistic environment.”
The metal scissors open up and become electric dipole reflectors - there are many of them, and they well reflect the radio signal of the long-range missile detection radar beam probing them. Instead of the ten desired fat ducks, the radar sees a huge blurry flock of small sparrows, in which it is difficult to make out anything. Devices of all shapes and sizes reflect different wavelengths.
In addition to all this tinsel, the stage can theoretically itself emit radio signals that interfere with the targeting of enemy anti-missile missiles. Or distract them with yourself. In the end, you never know what she can do - after all, a whole stage is flying, large and complex, why not load it with a good solo program?
The photo shows the launch of a Trident II intercontinental missile (USA) from a submarine. Currently, Trident is the only family of ICBMs whose missiles are installed on American submarines. The maximum throwing weight is 2800 kg.
Last segment
However, from an aerodynamic point of view, the stage is not a warhead. If that one is a small and heavy narrow carrot, then the stage is an empty, vast bucket, with echoing empty fuel tanks, a large, streamlined body and a lack of orientation in the flow that is beginning to flow. With its wide body and decent windage, the stage responds much earlier to the first blows of the oncoming flow. The warheads also unfold along the flow, piercing the atmosphere with the least aerodynamic resistance. The step leans into the air with its vast sides and bottoms as necessary. It cannot fight the braking force of the flow. Its ballistic coefficient - an “alloy” of massiveness and compactness - is much worse than a warhead. Immediately and strongly it begins to slow down and lag behind the warheads. But the forces of the flow increase inexorably, and at the same time the temperature heats up the thin, unprotected metal, depriving it of its strength. The remaining fuel boils merrily in the hot tanks. Finally, the hull structure loses stability under the aerodynamic load that compresses it. Overload helps to destroy the bulkheads inside. Crack! Hurry! The crumpled body is immediately engulfed by hypersonic shock waves, tearing the stage into pieces and scattering them. After flying a little in the condensing air, the pieces again break into smaller fragments. Remaining fuel reacts instantly. Flying fragments of structural elements made of magnesium alloys are ignited by hot air and instantly burn with a blinding flash, similar to a camera flash - it’s not for nothing that magnesium was set on fire in the first photo flashes!
Everything is now burning with fire, everything is covered in hot plasma and the orange color of the coals from the fire shines well around. The denser parts go to decelerate forward, the lighter and sailier parts are blown into a tail stretching across the sky. All burning components produce dense smoke plumes, although at such speeds these very dense plumes cannot exist due to the monstrous dilution by the flow. But from a distance they are clearly visible. The ejected smoke particles stretch along the flight trail of this caravan of bits and pieces, filling the atmosphere with a wide white trail. Impact ionization gives rise to the nighttime greenish glow of this plume. Due to the irregular shape of the fragments, their deceleration is rapid: everything that is not burned quickly loses speed, and with it the intoxicating effect of the air. Supersonic is the strongest brake! Having stood in the sky like a train falling apart on the tracks, and immediately cooled by the high-altitude frosty subsound, the strip of fragments becomes visually indistinguishable, loses its shape and structure and turns into a long, twenty minutes, quiet chaotic dispersion in the air. If you are in the right place, you can hear a small charred piece of duralumin clinking quietly against a birch trunk. Here you are. Goodbye breeding stage!
, Great Britain, France and China.
An important stage in the development of rocket technology was the creation of systems with multiple warheads. The first implementation options did not have individual guidance of warheads; the benefit of using several small charges instead of one powerful one is greater efficiency when affecting area targets, so in 1970 the Soviet Union deployed R-36 missiles with three warheads of 2.3 Mt each . In the same year, the United States put the first Minuteman III systems on combat duty, which had a completely new quality - the ability to deploy warheads along individual trajectories to hit multiple targets.
The first mobile ICBMs were adopted in the USSR: the Temp-2S on a wheeled chassis (1976) and the railway-based RT-23 UTTH (1989). In the United States, work was also carried out on similar systems, but none of them were put into service.
A special direction in the development of intercontinental ballistic missiles was work on “heavy” missiles. In the USSR, such missiles were the R-36, and its further development, the R-36M, which were put into service in 1967 and 1975, and in the USA in 1963 the Titan-2 ICBM entered service. In 1976, Yuzhnoye Design Bureau began developing the new RT-23 ICBM, while work on the missile had been underway in the United States since 1972; they were put into service in (in the RT-23UTTKh version) and 1986, respectively. R-36M2, which entered service in 1988, is the most powerful and heaviest in the history of missile weapons: a 211-ton rocket, when fired at 16,000 km, carries on board 10 warheads with a capacity of 750 kt each.
Design
Operating principle
Ballistic missiles typically launch vertically. Having received some translational speed in the vertical direction, the rocket, with the help of a special software mechanism, equipment and controls, gradually begins to move from a vertical position to an inclined position towards the target.
By the end of engine operation, the longitudinal axis of the rocket acquires an angle of inclination (pitch) corresponding to the greatest range of its flight, and the speed becomes equal to a strictly established value that ensures this range.
After the engine stops operating, the rocket performs its entire further flight by inertia, describing in the general case an almost strictly elliptical trajectory. At the top of the trajectory, the rocket's flight speed takes on its lowest value. The apogee of the trajectory of ballistic missiles is usually located at an altitude of several hundred kilometers from the surface of the earth, where, due to the low density of the atmosphere, air resistance is almost completely absent.
In the descending section of the trajectory, the rocket's flight speed gradually increases due to the loss of altitude. With further descent, the rocket passes through the dense layers of the atmosphere at enormous speeds. In this case, the skin of the ballistic missile is strongly heated, and if the necessary safety measures are not taken, its destruction may occur.
Classification
Based method
Based on their launching method, intercontinental ballistic missiles are divided into:
- launched from ground-based stationary launchers: R-7, Atlas;
- launched from silo launchers (silos): RS-18, PC-20, “Minuteman”;
- launched from mobile installations based on a wheeled chassis: “Topol-M”, “Midgetman”;
- launched from railway launchers: RT-23UTTKh;
- submarine-launched ballistic missiles: Bulava, Trident.
The first basing method fell out of use in the early 1960s, as it did not meet the requirements of security and secrecy. Modern silos provide a high degree of protection from the damaging factors of a nuclear explosion and allow one to reliably hide the level of combat readiness of the launch complex. The remaining three options are mobile, and therefore more difficult to detect, but they impose significant restrictions on the size and weight of missiles.
ICBM design bureau named after. V. P. Makeeva
Other methods of basing ICBMs have been repeatedly proposed, designed to ensure secrecy of deployment and security of launch complexes, for example:
- on specialized aircraft and even airships with the launch of ICBMs in flight;
- in ultra-deep (hundreds of meters) mines in rocks, from which transport and launch containers (TPC) with missiles must rise to the surface before launch;
- at the bottom of the continental shelf in pop-up capsules;
- in a network of underground galleries through which mobile launchers continuously move.
Until now, none of these projects have been brought to practical implementation.
Engines
Early versions of ICBMs used liquid-propellant rocket engines and required lengthy refueling with propellant components immediately before launch. Preparations for launch could last several hours, and the time to maintain combat readiness was very short. In the case of using cryogenic components (R-7), the equipment of the launch complex was very cumbersome. All this significantly limited the strategic value of such missiles. Modern ICBMs use solid propellant rocket engines or liquid rocket engines with high-boiling components with ampulized fueling. Such missiles arrive from the factory in transport and launch containers. This allows them to be stored in a ready-to-start condition throughout their entire service life. Liquid rockets are delivered to the launch complex in an unfuelled state. Refueling is carried out after installing the TPK with the missile in the launcher, after which the missile can be in combat-ready condition for many months and years. Preparation for launch usually takes no more than a few minutes and is carried out remotely, from a remote command post, via cable or radio channels. Periodic checks of missile and launcher systems are also carried out.
Modern ICBMs usually have a variety of means to penetrate enemy missile defenses. They may include maneuvering warheads, radar jammers, decoys, etc.
Indicators
Launch of the Dnepr rocket
Peaceful use
For example, with the help of American Atlas and Titan ICBMs, the Mercury and Gemini spacecraft were launched. And the Soviet PC-20, PC-18 ICBMs and the naval R-29RM served as the basis for the creation of the Dnepr, Strela, Rokot and Shtil launch vehicles.
See also
Notes
Links
- Andreev D. Missiles do not go into reserve // “Red Star”. June 25, 2008
On January 20, 1960, the world's first intercontinental ballistic missile, the R-7, was put into service in the USSR. On the basis of this rocket, a whole family of medium-class launch vehicles was created, which made a great contribution to space exploration. It was the R-7 that launched the Vostok spacecraft into orbit with the first cosmonaut - Yuri Gagarin. We decided to talk about five legendary Soviet ballistic missiles.
The two-stage R-7 intercontinental ballistic missile, affectionately called the “Seven,” had a detachable warhead weighing 3 tons. The rocket was developed in 1956–1957 at OKB-1 near Moscow under the leadership of Sergei Pavlovich Korolev. It became the first intercontinental ballistic missile in the world. The R-7 was put into service on January 20, 1960. It had a flight range of 8 thousand km. Later, a modification of the R-7A was adopted with a range increased to 11 thousand km. The R-7 used liquid two-component fuel: liquid oxygen as an oxidizer, and T-1 kerosene as a fuel. Testing of the rocket began in 1957. The first three launches were unsuccessful. The fourth attempt was successful. The R-7 carried a thermonuclear warhead. The throwing weight was 5400–3700 kg.
Video
R-16
In 1962, the USSR adopted the R-16 missile. Its modification became the first Soviet missile capable of launching from a silo launcher. For comparison, the American SM-65 Atlas was also stored in the mine, but could not launch from the mine: before launching, they rose to the surface. The R-16 is also the first Soviet two-stage intercontinental ballistic missile using high-boiling propellant components with an autonomous control system. The missile entered service in 1962. The need to develop this missile was determined by the low tactical, technical and operational characteristics of the first Soviet ICBM R-7. Initially, the R-16 was supposed to be launched only from ground launchers. The R-16 was equipped with a detachable monoblock warhead of two types, differing in the power of the thermonuclear charge (about 3 Mt and 6 Mt). The maximum flight range depended on the mass and, accordingly, the power of the warhead, ranging from 11 thousand to 13 thousand km. The first rocket launch ended in an accident. On October 24, 1960, at the Baikonur test site, during the planned first test launch of the R-16 rocket at the stage of pre-launch work, approximately 15 minutes before launch, an unauthorized start of the second stage engines occurred due to the passage of a premature command to start the engines from the current distributor, which was caused by a gross violation of the missile preparation procedure. The rocket exploded on the launch pad. 74 people were killed, including the commander of the Strategic Missile Forces, Marshal M. Nedelin. Later, the R-16 became the base missile for creating a group of intercontinental missiles of the Strategic Missile Forces.
RT-2 became the first Soviet serial solid-propellant intercontinental ballistic missile. It was put into service in 1968. This missile had a range of 9400–9800 km. Throwing weight - 600 kg. RT-2 was distinguished by its short preparation time for launch - 3–5 minutes. For the P-16 it took 30 minutes. The first flight tests were carried out from the Kapustin Yar test site. There were 7 successful launches. During the second stage of testing, which took place from October 3, 1966 to November 4, 1968 at the Plesetsk test site, 16 out of 25 launches were successful. The rocket was in operation until 1994.
RT-2 rocket in the Motovilikha museum, Perm
R-36
The R-36 was a heavy-duty missile capable of carrying a thermonuclear charge and penetrating a powerful missile defense system. The R-36 had three warheads of 2.3 Mt each. The missile entered service in 1967. In 1979 it was withdrawn from service. The rocket was launched from a silo launcher. During the testing process, 85 launches were carried out, of which 14 failures occurred, 7 of which occurred in the first 10 launches. In total, 146 launches of all modifications of the rocket were carried out. R-36M - further development of the complex. This rocket is also known as "Satan". It was the world's most powerful combat missile system. It was significantly superior to its predecessor, the R-36: in shooting accuracy - 3 times, in combat readiness - 4 times, in launcher security - 15–30 times. The missile range was up to 16 thousand km. Throwing weight - 7300 kg.
Video
"Temp-2S"
"Temp-2S" is the first mobile missile system of the USSR. The mobile launcher was based on a six-axle MAZ-547A wheeled chassis. The complex was intended to strike at well-protected air defense/missile defense systems and important military and industrial infrastructure located deep in enemy territory. Flight tests of the Temp-2S complex began with the first launch of a rocket on March 14, 1972 at the Plesetsk test site. The flight development stage in 1972 did not go very smoothly: 3 out of 5 launches were unsuccessful. A total of 30 launches were carried out during flight testing, 7 of which were emergency launches. At the final stage of joint flight testing at the end of 1974, a salvo launch of two missiles was carried out, and the last test launch was carried out on December 29, 1974. The Temp-2S mobile ground-based missile system was put into service in December 1975. The missile range was 10.5 thousand km. The missile could carry a 0.65–1.5 Mt thermonuclear warhead. A further development of the Temp-2S missile system was the Topol complex.
The ICBM is an impressive human creation. Huge size, thermonuclear power, a column of flame, the roar of engines and the menacing roar of launch... However, all this exists only on the ground and in the first minutes of launch. After they expire, the rocket ceases to exist. Further into the flight and to carry out the combat mission, only what remains of the rocket after acceleration is used - its payload.
With long launch ranges, the payload of an intercontinental ballistic missile extends into space for many hundreds of kilometers. It rises into the layer of low-orbit satellites, 1000-1200 km above the Earth, and is located among them for a short time, only slightly lagging behind their general run. And then it begins to slide down along an elliptical trajectory...
What exactly is this load?
A ballistic missile consists of two main parts - the accelerating part and the other for the sake of which the acceleration is started. The accelerating part is a pair or three of large multi-ton stages, filled to capacity with fuel and with engines at the bottom. They give the necessary speed and direction to the movement of the other main part of the rocket - the head. The booster stages, replacing each other in the launch relay, accelerate this warhead in the direction of the area of its future fall.
The head of a rocket is a complex load consisting of many elements. It contains a warhead (one or more), a platform on which these warheads are placed along with all other equipment (such as means of deceiving enemy radars and missile defenses), and a fairing. There is also fuel and compressed gases in the head part. The entire warhead will not fly to the target. It, like the ballistic missile itself earlier, will split into many elements and simply cease to exist as one whole. The fairing will separate from it not far from the launch area, during the operation of the second stage, and somewhere along the way it will fall. The platform will collapse upon entering the air of the impact area. Only one type of element will reach the target through the atmosphere. Warheads.
Up close, the warhead looks like an elongated cone, a meter or one and a half long, with a base as thick as a human torso. The nose of the cone is pointed or slightly blunt. This cone is a special aircraft whose task is to deliver weapons to the target. We'll come back to warheads later and take a closer look at them.
Head of the "Peacemaker"
The pictures show the breeding stages of the American heavy ICBM LGM0118A Peacekeeper, also known as MX. The missile was equipped with ten 300 kt multiple warheads. The missile was withdrawn from service in 2005.
Pull or push?
In a missile, all warheads are located in the so-called breeding stage, or “bus”. Why bus? Because, having first been freed from the fairing, and then from the last booster stage, the propagation stage carries the warheads, like passengers, at given stops, along their trajectories, along which the deadly cones will disperse to their targets.
The “bus” is also called the combat stage, because its work determines the accuracy of pointing the warhead to the target point, and therefore combat effectiveness. The propagation stage and its operation is one of the biggest secrets in a rocket. But we will still take a slight, schematic look at this mysterious step and its difficult dance in space.
The breeding step has different forms. Most often, it looks like a round stump or a wide loaf of bread, on which warheads are mounted on top, points forward, each on its own spring pusher. The warheads are pre-positioned at precise separation angles (at the missile base, manually, using theodolites) and point in different directions, like a bunch of carrots, like the needles of a hedgehog. The platform, bristling with warheads, occupies a given position in flight, gyro-stabilized in space. And at the right moments, warheads are pushed out of it one by one. They are ejected immediately after completion of acceleration and separation from the last accelerating stage. Until (you never know?) they shot down this entire undiluted hive with anti-missile weapons or something on board the breeding stage failed.
But this happened before, at the dawn of multiple warheads. Now breeding presents a completely different picture. If previously the warheads “stuck” forward, now the stage itself is in front along the course, and the warheads hang from below, with their tops back, upside down, like bats. The “bus” itself in some rockets also lies upside down, in a special recess in the upper stage of the rocket. Now, after separation, the breeding stage does not push, but drags the warheads along with it. Moreover, it drags, bracing itself with four “paws” placed crosswise, deployed in front. At the ends of these metal legs are rearward-facing thrust nozzles for the expansion stage. After separation from the accelerating stage, the “bus” very accurately, precisely sets its movement in the beginning of space with the help of its own powerful guidance system. He himself occupies the exact path of the next warhead - its individual path.
Then the special inertia-free locks that held the next detachable warhead are opened. And not even separated, but simply now no longer connected with the stage, the warhead remains motionless hanging here, in complete weightlessness. The moments of her own flight began and flowed by. Like one individual berry next to a bunch of grapes with other warhead grapes not yet plucked from the stage by the breeding process.
Fire ten
K-551 "Vladimir Monomakh" is a Russian strategic nuclear submarine (Project 955 "Borey"), armed with 16 solid-fuel Bulava ICBMs with ten multiple warheads.
Delicate movements
Now the task of the stage is to crawl away from the warhead as delicately as possible, without disturbing its precisely set (targeted) movement with gas jets of its nozzles. If a supersonic jet of a nozzle hits a separated warhead, it will inevitably add its own additive to the parameters of its movement. Over the subsequent flight time (which is half an hour to fifty minutes, depending on the launch range), the warhead will drift from this exhaust “slap” of the jet half a kilometer to a kilometer sideways from the target, or even further. It will drift without obstacles: there is space, they slapped it - it floated, not being held back by anything. But is a kilometer sideways accurate today?
To avoid such effects, it is precisely the four upper “legs” with engines that are spaced apart to the sides that are needed. The stage is, as it were, pulled forward on them so that the exhaust jets go to the sides and cannot catch the warhead separated by the belly of the stage. All thrust is divided between four nozzles, which reduces the power of each individual jet. There are other features too. For example, if on the donut-shaped propulsion stage (with a void in the middle - this hole is worn on the rocket's upper stage like a wedding ring on a finger) of the Trident II D5 missile, the control system determines that the separated warhead still falls under the exhaust of one of the nozzles, then the control system turns off this nozzle. Silences the warhead.
The stage, gently, like a mother from the cradle of a sleeping child, fearing to disturb his peace, tiptoes away into space on the three remaining nozzles in low thrust mode, and the warhead remains on the aiming trajectory. Then the “donut” stage with the cross of the thrust nozzles is rotated around the axis so that the warhead comes out from under the zone of the torch of the switched off nozzle. Now the stage moves away from the remaining warhead on all four nozzles, but for now also at low throttle. When a sufficient distance is reached, the main thrust is turned on, and the stage vigorously moves into the area of the target trajectory of the next warhead. There it slows down in a calculated manner and again very precisely sets the parameters of its movement, after which it separates the next warhead from itself. And so on - until it lands each warhead on its trajectory. This process is fast, much faster than you read about it. In one and a half to two minutes, the combat stage deploys a dozen warheads.
The abysses of mathematics
What has been said above is quite enough to understand how a warhead’s own path begins. But if you open the door a little wider and look a little deeper, you will notice that today the rotation in space of the breeding stage carrying the warhead is an area of application of quaternion calculus, where the on-board attitude control system processes the measured parameters of its movement with a continuous construction on board the orientation quaternion. A quaternion is such a complex number (above the field of complex numbers lies a flat body of quaternions, as mathematicians would say in their precise language of definitions). But not with the usual two parts, real and imaginary, but with one real and three imaginary. In total, the quaternion has four parts, which, in fact, is what the Latin root quatro says.
The dilution stage does its job quite low, immediately after the boost stages are turned off. That is, at an altitude of 100−150 km. And there is also the influence of gravitational anomalies on the Earth’s surface, heterogeneities in the even gravitational field surrounding the Earth. Where are they from? From uneven terrain, mountain systems, occurrence of rocks of different densities, oceanic depressions. Gravitational anomalies either attract the stage to themselves with additional attraction, or, conversely, slightly release it from the Earth.
In such irregularities, the complex ripples of the local gravitational field, the breeding stage must place the warheads with precision accuracy. To do this, it was necessary to create a more detailed map of the Earth's gravitational field. It is better to “explain” the features of a real field in systems of differential equations that describe precise ballistic motion. These are large, capacious (to include details) systems of several thousand differential equations, with several tens of thousands of constant numbers. And the gravitational field itself at low altitudes, in the immediate near-Earth region, is considered as a joint attraction of several hundred point masses of different “weights” located near the center of the Earth in a certain order. This achieves a more accurate simulation of the Earth's real gravitational field along the rocket's flight path. And more accurate operation of the flight control system with it. And also... but that's enough! - Let's not look further and close the door; What has been said is enough for us.
Flight without warheads
The breeding stage, accelerated by the missile towards the same geographical area where the warheads should fall, continues its flight along with them. After all, she can’t fall behind, and why should she? After disengaging the warheads, the stage urgently attends to other matters. She moves away from the warheads, knowing in advance that she will fly a little differently from the warheads, and not wanting to disturb them. The breeding stage also devotes all its further actions to warheads. This maternal desire to protect the flight of her “children” in every possible way continues for the rest of her short life.
Short, but intense.
Space won't last long
The ICBM payload spends most of its flight in space object mode, rising to an altitude three times the height of the ISS. The trajectory of enormous length must be calculated with extreme accuracy.
After the separated warheads, it is the turn of other wards. The most amusing things begin to fly away from the steps. Like a magician, she releases into space many inflating balloons, some metallic things that resemble open scissors, and objects of all sorts of other shapes. Durable balloons sparkle brightly in the cosmic sun with the mercury shine of a metallized surface. They are quite large, some shaped like warheads flying nearby. Their aluminum-coated surface reflects a radar signal from a distance in much the same way as the warhead body. Enemy ground-based radars will perceive these inflatable warheads as well as real ones. Of course, in the very first moments of entering the atmosphere, these balls will fall behind and immediately burst. But before that, they will distract and load the computing power of ground-based radars - both long-range detection and guidance of anti-missile systems. In ballistic missile interceptor parlance, this is called “complicating the current ballistic environment.” And the entire heavenly army, inexorably moving towards the area of impact, including real and false warheads, balloons, dipole and corner reflectors, this whole motley flock is called “multiple ballistic targets in a complicated ballistic environment.”
The metal scissors open up and become electric dipole reflectors - there are many of them, and they well reflect the radio signal of the long-range missile detection radar beam probing them. Instead of the ten desired fat ducks, the radar sees a huge blurry flock of small sparrows, in which it is difficult to make out anything. Devices of all shapes and sizes reflect different wavelengths.
In addition to all this tinsel, the stage can theoretically itself emit radio signals that interfere with the targeting of enemy anti-missile missiles. Or distract them with yourself. In the end, you never know what she can do - after all, a whole stage is flying, large and complex, why not load it with a good solo program?
Home for "Bulava"
Project 955 Borei submarines are a series of Russian nuclear submarines of the fourth generation “strategic missile submarine cruiser” class. Initially, the project was created for the Bark missile, which was replaced by the Bulava.
Last segment
However, from an aerodynamic point of view, the stage is not a warhead. If that one is a small and heavy narrow carrot, then the stage is an empty, vast bucket, with echoing empty fuel tanks, a large, streamlined body and a lack of orientation in the flow that is beginning to flow. With its wide body and decent windage, the stage responds much earlier to the first blows of the oncoming flow. The warheads also unfold along the flow, piercing the atmosphere with the least aerodynamic resistance. The step leans into the air with its vast sides and bottoms as necessary. It cannot fight the braking force of the flow. Its ballistic coefficient - an “alloy” of massiveness and compactness - is much worse than a warhead. Immediately and strongly it begins to slow down and lag behind the warheads. But the forces of the flow increase inexorably, and at the same time the temperature heats up the thin, unprotected metal, depriving it of its strength. The remaining fuel boils merrily in the hot tanks. Finally, the hull structure loses stability under the aerodynamic load that compresses it. Overload helps to destroy the bulkheads inside. Crack! Hurry! The crumpled body is immediately engulfed by hypersonic shock waves, tearing the stage into pieces and scattering them. After flying a little in the condensing air, the pieces again break into smaller fragments. Remaining fuel reacts instantly. Flying fragments of structural elements made of magnesium alloys are ignited by hot air and instantly burn with a blinding flash, similar to a camera flash - it’s not for nothing that magnesium was set on fire in the first photo flashes!
America's Underwater Sword
American Ohio-class submarines are the only type of missile carrier in service with the United States. Carries on board 24 ballistic missiles with MIRVed Trident-II (D5). The number of warheads (depending on power) is 8 or 16.
Everything is now burning with fire, everything is covered in hot plasma and the orange color of the coals from the fire shines well around. The denser parts go to decelerate forward, the lighter and sailier parts are blown into a tail stretching across the sky. All burning components produce dense smoke plumes, although at such speeds these very dense plumes cannot exist due to the monstrous dilution by the flow. But from a distance they are clearly visible. The ejected smoke particles stretch along the flight trail of this caravan of bits and pieces, filling the atmosphere with a wide white trail. Impact ionization gives rise to the nighttime greenish glow of this plume. Due to the irregular shape of the fragments, their deceleration is rapid: everything that is not burned quickly loses speed, and with it the intoxicating effect of the air. Supersonic is the strongest brake! Having stood in the sky like a train falling apart on the tracks, and immediately cooled by the high-altitude frosty subsound, the strip of fragments becomes visually indistinguishable, loses its shape and structure and turns into a long, about twenty minutes, quiet chaotic dispersion in the air. If you are in the right place, you can hear a small charred piece of duralumin clinking quietly against a birch trunk. Here you are. Goodbye breeding stage!
Sea trident
The photo shows the launch of a Trident II intercontinental missile (USA) from a submarine. Currently, Trident is the only family of ICBMs whose missiles are installed on American submarines. The maximum throwing weight is 2800 kg.
Today, developed countries have developed a line of remotely controlled projectiles - anti-aircraft, ship-based, land-based and even launched from a submarine. They are designed to perform various tasks. Many countries use intercontinental ballistic missiles (ICBMs) as their primary means of nuclear deterrence.
Similar weapons are available in Russia, the United States of America, Great Britain, France and China. It is unknown whether Israel has ultra-long-range ballistic projectiles. However, according to experts, the state has all the capabilities to create this type of missile.
Information about which ballistic missiles are in service with countries around the world, their descriptions and tactical and technical characteristics are contained in the article.
Acquaintance
ICBMs are guided surface-to-surface intercontinental ballistic missiles. Nuclear warheads are provided for such weapons, with the help of which strategically important enemy targets located on other continents are destroyed. The minimum range is at least 5500 thousand meters.
Vertical take-off is provided for ICBMs. After launch and overcoming dense atmospheric layers, the ballistic missile smoothly turns and falls on a given course. Such a projectile can hit a target located at a distance of at least 6 thousand km.
“Ballistic” missiles got their name because the ability to control them is available only at the initial stage of flight. This distance is 400 thousand meters. Having passed this small area, ICBMs fly like standard artillery shells. It moves towards the target at a speed of 16 thousand km/h.
Start of ICBM design
In the USSR, work on the creation of the first ballistic missiles began in the 1930s. Soviet scientists planned to develop a rocket using liquid fuel for space exploration. However, in those years it was technically impossible to complete this task. The situation was further aggravated by the fact that leading missile specialists were subjected to repression.
Similar work was carried out in Germany. Before Hitler came to power, German scientists were developing liquid fuel rockets. Since 1929, research has acquired a purely military character. In 1933, German scientists assembled the first ICBM, which in the technical documentation is listed as “Agregat-1” or A-1. The Nazis created several secret army missile sites to improve and test ICBMs.
By 1938, the Germans managed to complete the construction of the A-3 liquid-fuel rocket and launch it. Later, its design was used to improve the rocket, which is listed as A-4. She entered flight tests in 1942. The first launch was unsuccessful. During the second test, the A-4 exploded. The missile passed flight tests only on the third attempt, after which it was renamed V-2 and adopted by the Wehrmacht.
About FAU-2
This ICBM was characterized by a single-stage design, namely, it contained a single missile. A jet engine was provided for the system, which used ethyl alcohol and liquid oxygen. The rocket body was a frame sheathed on the outside, inside of which there were tanks with fuel and oxidizer.
The ICBMs were equipped with a special pipeline through which fuel was supplied to the combustion chamber using a turbopump unit. Ignition was carried out with special starting fuel. The combustion chamber had special tubes through which alcohol was passed to cool the engine.
The V-2 used an autonomous software gyroscopic guidance system, consisting of a gyrohorizon, a gyroverticant, amplification-converter units and steering machines connected to rocket rudders. The control system consisted of four graphite gas rudders and four air rudders. They were responsible for stabilizing the rocket body during its re-entry into the atmosphere. The ICBM contained an inseparable warhead. The mass of the explosive was 910 kg.
About the combat use of A-4
Soon, German industry began mass production of V-2 missiles. Due to an imperfect gyroscopic control system, the ICBM could not respond to parallel demolition. In addition, the integrator, a device that determines at what point the engine turns off, worked with errors. As a result, the German ICBM had low hit accuracy. Therefore, German designers chose London as a large area target for combat testing of missiles.
4,320 ballistic units were fired into the city. Only 1050 pieces reached the target. The rest exploded in flight or fell outside the city. Nevertheless, it became clear that ICBMs are a new and very powerful weapon. According to experts, if German missiles had sufficient technical reliability, London would have been completely destroyed.
About R-36M
SS-18 "Satan" (aka "Voevoda") is one of the most powerful intercontinental ballistic missiles in Russia. Its range is 16 thousand km. Work on this ICBM began in 1986. The first launch almost ended in tragedy. Then the rocket, leaving the shaft, fell into the barrel.
Several years after design modifications, the missile was put into service. Further tests were carried out with various combat equipment. The missile uses multiple and monoblock warheads. In order to protect ICBMs from enemy missile defense systems, the designers provided for the possibility of releasing decoys.
This ballistic model is considered multi-stage. For its operation, high-boiling fuel components are used. The missile is multi-purpose. The device has an automatic control complex. Unlike other ballistic missiles, the Voyevoda can be launched from a silo using a mortar launch. A total of 43 Satan launches were made. Of these, only 36 were successful.
Nevertheless, according to experts, Voevoda is one of the most reliable ICBMs in the world. Experts suggest that this ICBM will be in Russian service until 2022, after which its place will be taken by the more modern Sarmat missile.
About tactical and technical characteristics
- The Voevoda ballistic missile belongs to the class of heavy ICBMs.
- Weight - 183 tons.
- The power of the total salvo carried out by the missile division corresponds to 13 thousand atomic bombs.
- The hit accuracy indicator is 1300 m.
- The speed of the ballistic missile is 7.9 km/sec.
- With a warhead weighing 4 tons, the ICBM is capable of covering a distance of 16 thousand meters. If the mass is 6 tons, then the flight altitude of the ballistic missile will be limited and will be 10200 m.
About R-29RMU2 "Sineva"
This third-generation Russian ballistic missile is known as the SS-N-23 Skiff according to NATO classification. The location of this ICBM was a submarine.
"Sineva" is a three-stage rocket with liquid jet engines. High accuracy was noted when hitting a target. The missile is equipped with ten warheads. Management is carried out using the Russian GLONASS system. The maximum range of the missile does not exceed 11,550 m. It has been in service since 2007. Presumably, Sineva will be replaced in 2030.
"Topol-M"
It is considered the first Russian ballistic missile, developed by employees of the Moscow Institute of Thermal Engineering after the collapse of the Soviet Union. 1994 was the year when the first tests were carried out. Since 2000 it has been in Russian service. Designed for a flight range of up to 11 thousand km. Introduces an improved version of the Russian Topol ballistic missile. ICBMs are silo-based. Can also be contained on special mobile launchers. It weighs 47.2 tons. The rocket is made by workers. According to experts, powerful radiation, high-energy lasers, electromagnetic pulses and even a nuclear explosion are not able to influence the functioning of this rocket.
Thanks to the presence of additional engines in the design, Topol-M is capable of successfully maneuvering. The ICBM is equipped with three-stage rocket engines powered by solid fuel. The Topol-M maximum speed is 73,200 m/sec.
About the Russian fourth generation rocket
Since 1975, the Strategic Missile Forces have been armed with the UR-100N intercontinental ballistic missile. In the NATO classification, this model is listed as SS-19 Stiletto. The range of this ICBM is 10 thousand km. Equipped with six warheads. Targeting is carried out using a special inertial system. UR-100N is a two-stage silo-based aircraft.
The power unit runs on liquid rocket fuel. Presumably, this ICBM will be used by the Russian Strategic Missile Forces until 2030.
About RSM-56
This model of the Russian ballistic missile is also called “Bulava”. In NATO countries, the ICBM is known under the code designation SS-NX-32. It is a new intercontinental missile, for which it is planned to be based on a Borei-class submarine. The maximum range is 10 thousand km. One missile is equipped with ten detachable nuclear warheads.
Weighs 1150 kg. The ICBM is a three-stage one. Operates on liquid (1st and 2nd stage) and solid (3rd) fuel. He has served in the Russian Navy since 2013.
About Chinese samples
Since 1983, China has been armed with the DF-5A (Dong Feng) intercontinental ballistic missile. In the NATO classification, this ICBM is listed as CSS-4. The flight range is 13 thousand km. Created to “work” exclusively on the US continent.
The missile is equipped with six warheads weighing 600 kg. Targeting is carried out using a special inertial system and on-board computers. The ICBM is equipped with two-stage engines that run on liquid fuel.
In 2006, Chinese nuclear engineers created a new model of the three-stage intercontinental ballistic missile DF-31A. Its range does not exceed 11,200 km. According to NATO classification it is listed as CSS-9 Mod-2. It can be based both on submarines and on special launchers. The rocket has a launch weight of 42 tons. It uses solid fuel engines.
About American-made ICBMs
The UGM-133A Trident II has been used by the US Navy since 1990. This model is an intercontinental ballistic missile capable of covering distances of 11,300 km. It uses three solid rocket motors. Submarines became the base. The first testing took place in 1987. Over the entire period, the rocket was launched 156 times. Four starts ended unsuccessfully. One ballistic unit can carry eight warheads. The rocket is expected to last until 2042.
In the United States, the LGM-30G Minuteman III ICBM has been in service since 1970, with an estimated range ranging from 6 to 10 thousand km. This is the oldest intercontinental ballistic missile. It first started in 1961. Later, American designers created a modification of the rocket, which was launched in 1964. In 1968, the third modification LGM-30G was launched. Basing and launching is carried out from the mine. The mass of the ICBM is 34,473 kg. The rocket has three solid propellant engines. The ballistic unit moves towards the target at a speed of 24,140 km/h.
About the French M51
This model of intercontinental ballistic missile has been operated by the French Navy since 2010. ICBMs can also be deployed and launched from a submarine. The M51 was created to replace the outdated M45 model. The range of the new missile varies from 8 to 10 thousand km. The mass of the M51 is 50 tons.
Equipped with a solid propellant rocket motor. One intercontinental ballistic unit is equipped with six warheads.