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New Kh-32 Antiship Missile Becomes Operational in Russia

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The Raduga Maritime Design Bureau has been developing the missile
since 1998. It is a deep modernization of the well-known Kh-22 which made the
maiden flight in 1963, was accepted into service in 1968 and is still operational.
It has the hull of the predecessor. The size and weight of Kh-32 are the same. It
weighs close to 5800 kg, is 12 meters long with a one-meter diameter and a
three-meter wingspan. It is carried on the same suspensions as Kh-22. Open
sources said the warhead is lighter. On Kh-22 it weighs 900 kg and the new one
weighs 500 kg. The empty space is used to carry additional fuel.
Kh-32 has a more effective and powerful engine. It is distinguished by a new
radar targeting system with radio command adjustment according to terrain
relief by altimeter. Kh-22 homing warhead operates by a set of fixed frequencies.
The problems of electromagnetic compatibility limit the number of missiles in a
salvo, and the missile is extremely vulnerable to modern electronic warfare
means. Kh-32 controls are free of the drawbacks. Experts said the weapon is
highly protected from jamming by the latest emission sources.
The trajectory has three sections: the launch one to reach the cruising altitude,
the cruising one when Kh-32 flies at the 40-km ceiling, and the final one when it
nosedives
to
attack.
Experts believe Kh-32 can lock on the target from under the aircraft wing which
allows the operator to select the target. However, the range of 600-1000 km does
not provide such a possibility as the distance is too big for the warhead to detect
and track the target. The radars of the carrier, reconnaissance or AEW aircraft
cannot do it.
The range of the homing warhead is 200-300 km. The operator selects the target
after detecting a group of adversary warships (radar-contrast ground targets) and
sends a radio command. Vulkan missiles and their predecessors Basalt operate
by the same principle on project 1164 cruisers.
It is clear the fire range in the technical assignment should allow to strike
without entering the air defense of the aircraft-carrying formation. The longest
interception range of seaborne US aircraft on duty in the air is 700 kilometers
from the carrier when aimed by AWACS (E-2S Hawkai and E-3 various
modifications). It means Kh-32 range should be 800 km (experts say 600 to
1000 km). It is quite possible as Kh-22 flew for over 350 km yet in early 1960s.
A more powerful engine and two times higher ceiling will boost the speed.
Experts
estimate
the
cruising
speed
at
5400
km/h.
As a result, it is an antiship missile launched from an altitude of 1 to 13
thousand meters and flying at an altitude of some 40 km at a speed of 1500
meters per second. The missile does not meet modern stealth requirements.
Let us analyze the capabilities of the latest and most powerful air defense of the
US Ticonderoga-class guided missile cruisers and Arleigh-Burke-class
destroyers with Aegis information-control system and the latest Standard-6
antiaircraft guided missiles. The missile (RIM-174 SM-6 ERAM) became
operational in the US Navy in 2013. It is distinguished by an active radar
homing warhead which allows to fire and forget the missile. It increases the
effectiveness of engagement against low flying targets also beyond the horizon
and allows destroying targets by outside aiming data, e.g. from an AWACS
aircraft.
The Standard-6 launch weight is 1500 kg, the range is 240 km and the maximum
altitude is 33 km. The speed is Mach 3.5 or nearly a thousand meters per second.
Maximum maneuvering overload is 50g. The warhead is kinetic (for ballistic
targets) or fragmentation (for aerodynamic targets), weighs 125 kg which is
twice as
much as the previous missiles of the family.
Maximum speed of the attacked aerodynamic target is estimated at 800 meters
per second. The hit probability by one missile at an aerodynamic target is 0.95.
The comparison of Kh-32 and Standard-6 shows the flying section of Kh-32 is
seven kilometers above the top destruction level of the US missile and nearly
two times surpasses its maximum speed for aerodynamic targets: 1500 against
800
meters
per
second.
But that does not mean the United States will not fire at hypersonic missiles.
The Aegis system can detect them and provide aiming information as it is
capable of missile and even satellite defense. Therefore, Standard-6 will be
engaged,
but
it
remains
to
see
how
effectively.
The hit probability characteristics are usually provided for ranges where the
target does not maneuver and flies at the best speed for its destruction. In real
combat the hit probability is usually lower due to aiming specifics which are
limited by the speed of the maneuvering target and its altitude. The hit capability
of Standard-6 will be affected also by the detection range of the active homing
warhead, the precision of the approach to target lock-on area, admissible
maneuvering overload and atmosphere density, as well as errors in determining
the movement specifics of the target by radars and information-control systems.
All the factors determine the main thing - whether the missile can contact and
select the miss distance to a level which will guarantee the warhead hitting the
maneuvering target.
Open sources provide no data on the range of Standard-6 homing warhead. The
size and weight of the missile can suggest that it can see an aircraft with five
square kilometer effective echoing ratio at a distance of 15-20km. Kh-32 missile
effective echoing ratio is 0.5 square kilometers, so the range of Strandard-6
warhead is 8-12 kilometers. The fire at attacking antiship missiles will be
naturally held at head-on courses. It means the missiles will approach each other
at a speed of 2200-2330 meters per second which leaves only three-four seconds
for the approaching maneuver. The hit probability is low specifically at altitudes
above the limit where rarefied atmosphere considerably decreases maneuvering
capabilities. It means Standard-6 has to be launched with an error not exceeding
30-40 meters to successfully hit Kh-32 at the flying section. The hit probability
of a nosediving KH-32 in the dense layers of the atmosphere is also limited by
little time of the flight to the mission point - 20 seconds.
Calculations show the hit probability of Kh-32 by one Standard-6 can hardly
exceed 0.05-0.08 even in favorable conditions and aiming directly from the
carrier. Hit probability by data from an AWACS aircraft is close to zero (0.010.02) because of errors in determining the location of the carrier and the
targeting source and the time to exchange information. It means the most
effective US and NATO Standard-6 missile has a low capability to hit Kh-32.
One can object and say the Americans fired from a Ticonderoga-class cruiser
and hit a satellite flying at a speed of 27 thousand km/h at an altitude of 240 km.
But it did not maneuver and its position was precisely determined after a long
observation which helped bring the missile directly to the target. There will be
no such possibilities in repelling an attack by a maneuvering Kh-32.
It is necessary to estimate the probability of Ticonderoga-class cruiser or
Arleigh-Burke-class destroyer to hit Kh-32. The range of their radars to detect
Kh-32 at an altitude of 40 km can be estimated at 230-270 km. It means the
missile will approach the target in less than three minutes after it is detected.
The Aegis system operational time is 30-35 seconds between the detection and
launch. In the remaining time two universal Mk.41 launchers can fire 20-30
guided
missiles
capable
of
destroying
the
attacking
Kh-32.
The hit probability by Vulcan Phalanx is next to nothing. Therefore,
Ticonderoga or Arleigh-Burke can potentially destroy one of two Kh-32. It
means two such warships can destroy two-four Kh-32.
There is also electronic warfare of active deception and passive jamming. There
is sufficient time for it and their complex engagement can disrupt the targeting
to a major extent. The operational time of electronic warfare weapons of a
warship and their expected efficiency result in a maximum probability hit of 0.30.4. In case of fire at a group it is highly probable that the homing warhead
would lock on another target. During Falkland hostilities a British aircraft carrier
engaged passive jamming and the attacking Exoset missile changed the target
and hit and sank the Atlantic Conveyers container ship. Kh-32 speed may leave
no time for another warship in a formation on which the warhead may lock to
engage
electronic
warfare
and
divert
it.
It means a group of two cruisers or destroyers is incapable of repelling a strike
from two Tu-22M3 bombers carrying two Kh-32 missiles each even in favorable
conditions. At least one warship would be damaged with a 0.6-0.7 probability. A
strike by a wing of three aircraft with six Kh-32 will definitely destroy both
warships.
A salvo of 24 Kh-32 at an aircraft-carrying force would be fatal. The probability
to destroy or sink an aircraft carrier with two-three escort ships is 0.75-0.85.
Russian aircraft will attack from outside the operational zone of adversary
seaborne fighter jets. It means a strike by 12 Tu-22M3 with two missiles each
will be sufficient to destroy an aircraft-carrying force with a high probability.
A group of two-three aircraft carriers can be destroyed by a strike of two
regiments of Tu-22M3 with 72 Kh-32. They can fire from a distance of twothree thousand kilometers from the Russian coast, i.e. long before the aircraftcarrying force arrives at the distance of seaborne aircraft engagement.
Even limited long-range aviation forces can considerably neutralize US aircraftcarrying formations. However, they have to be properly aimed at the targets and
defended from adversary coastal fighter jets. If it is not provided, the Kh-32
potential
will
not
be
implemented.
The United States is actively developing hypersonic missiles but so far there is
no data about the design of weapons similar to Kh-32. Russia is likely to
dominate
in
the
sphere
for
ten
years
and
more.
Still it is necessary to arm the aviation with a sufficient number of such missiles.
The troops need at least 250-300 of them. But the navy and the air force are
unlikely to get such a number of missiles because of the state of the economy
and the defense industry, as well as upcoming conversion. It means Kh-32 will
remain
an
excellent
but
rare
Russian
weapon.
The serial production of Kh-32 means a revolution in the naval arts. The relative
parity in the offense-defense balance will be replaced by a situation when the
attack potential will considerably surpass the defense capability.
The review analyzed the most perfect foreign arms. The capabilities of other
weapons are considerably inferior to Aegis and Standard-6.
It is necessary to design new methods and forms of naval warfare, in particular,
the destruction of surface forces of the adversary and promotion of combat
sustainability of your own forces. Adequate increase of the air defense potential
of warships will likely demand to review the conceptual basis of such systems. It
will take 10-15 years or may be more, expert Konstantin Sivkov writes in the
Military-Industrial Courier.
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