Japan's new
ASM-3 supersonic air-launched anti-ship missile
F-2 wing mounted
under the ASM-3 missile
Recently, the Japanese public of its newly developed ASM-3-type
air-launched supersonic anti-ship missile, ASM-3 will be equipped
with F-2 in the air from the top into space from a new generation
of fighter aircraft air-launched anti-ship missiles, the missiles
will be developed to air anti-ship capabilities from
tactical missile industry and even the Japanese are onto a new
level.
ASM-3 in Japan announced the news; the missile is to counter
China's aircraft carrier, the implication seems not to develop this
type of missile at it, would in my opinion, there is a guilty
conscience, seems to open the ASM-Japan
3 missile data view, ASM-3 weighs approximately 900 kilograms, even
if the Japanese high level of materials and processes, the
missile's warhead weight it's hard to over 200 kg, then the count
of its Mach 3
speed, its power would still be inadequate to deal with tons of
class the following fighting ships, by contrast, the Russian used
to attack aircraft carriers SS-N-19 supersonic anti-ship missiles,
its rate of fire is 2M, weighs 9 tons The warhead fragments weighing 700 kg
or so, might be much greater than ASM-3.
ASM-3's appearance and performance
with the French ASMP similar - even the names are
similar
We know that anti-ship missile in certain circumstances, have the
right to attack, so many cases, anti-ship missiles, particularly
long-range anti-ship missile is seen as an offensive weapon, but
the surrounding sea as the island nation of Japan, developed
a type of new anti-ship missile is a reasonable need, the outside
world this is understandable, then why should Japan so closely
guarded secret for the ASM-3? The answer lies in ASM-3 engine,
ASM-3 is based in Japan by the integral Ramjet Tactical
Missile, and the overall Ramjet be seen as small, supersonic,
long-range anti-ship missiles, the best choice.
That
would be Japan's future tactical missiles are smaller, faster,
farther distance, with Japan's growing fleet of long-distance
operations, the aggressive self-evident.
General there are three modern tactical missile engines, solid
rocket, turbine / fan motor and ramjet engine, solid rocket motor
is simple, and comes with oxidant and fuel, so you can work under
conditions of hypoxia, but disadvantage is its solid rocket motor
burn
is the instantaneous fuel, difficult to control, with the range of
increase, their weight and size are growing rapidly, so the weight
and size are strictly limited tactical missile, its range was
limited, such as use of the Exocet missile solid rocket
motor
weighing over 800 kg, a range of only 40 km, 80 km improved before
they close, while the use of turbojet engine of the Harpoon missile
has a range of 150 km, improved more than 200 km, do not need to
carry oxidizer because of its weight is also
less than 700 kg, while a range of thousands of kilometers to the
cruise missile is not the weight of 2 tons, but the jets have their
own shortcomings, the need for high-speed turbine compressed air
admitted to combustion chamber, so the missile's speed is
limited
turbine blade speed, taking into account the friction heat of the
impact of the speed of turbine blades can not be too high,
corresponding to the speed of the missile is difficult to improve,
so for tactical missiles, the need for a engine that is simple in
structure with the advantages of solid rocket
also have the ability to turbojet engine do not need to carry
oxidizer, that is, ramjet, scramjet principle is to slow down
high-speed air pressurized by the inlet and then into the fuel
chamber and the fuel mixed fuel, resulting in high pressure gas
discharged by the jet speed
to produce thrust, ramjet inlet generally, fuel rooms, vents and
other components, because there is no compressor, no gas turbines
and other rotating parts, hence, have a simple structure, light
weight, thrust to weight ratio, the advantages of low cost
For single-use missile, these advantages are particularly
conspicuous, but the absence of the compressor, Suo Yi ramjet can
not Zixingqidong, Xu Yao boosters Qiangqijiasu Dao Yi Ding's Sudu
to work after.
Japan described the ramjet
ASM-3 used schematic overall
Ramjet
Ramjet has developed three generations to the present; first ramjet
thrust insufficient because only two engines to be installed in
parallel above the missile, then booster rockets to accelerate to
the pace of work, so this generation of missile weight,
volume
are large, second-generation booster rocket ramjet engine and the
top series in the same axis, although the weight and size are
reduced, but still can not be applied to those who require a higher
weight and volume areas, such as air-launched anti-ship
missiles
To solve this problem, the third generation as a whole Ramjet
appeared, the so-called integral rocket booster and ramjet is to
integrate press launch, the two shared a fuel chamber, fuel booster
rockets of the grain, its
vacant space is the ramjet fuel room, so the whole stamping engine
size, weight and other indicators are much lower than the previous
generations of the ramjet engine, so as small size, light weight,
supersonic, long-range tactical missiles to lay a solid
basis, the French ASMP is the first supersonic missile ground by
the integral ramjet missile, weighing only 800 kg in the case of
realized speed M3, a range of 250 km (upper trajectory)
performance, its performance is far higher than
similar weight and size of the tactical missiles, while the former
Soviet Union / Russia and the United States has carried out
research integral ramjet, where the former is the development of a
series of supersonic anti-ship missile into the 90s last century,
the overall style
ramjet applications began to develop in depth, and the traditional
use of solid rocket motor compared to the overall style can provide
full ramjet powered flight, not only to improve the missile's
range, but also increased the maneuverability of missiles, the most
obvious example is the new Meteor air to air
missiles and generation of KH-31, advanced radiation missile, the
missile's range and maneuverability than the traditional model is
greatly improved.
Japanese officials say ASM-3 is the
successor of ASM-1 missile
In accordance with the Japanese side of the argument; the last
century from 90 carrier-based air defense system performance,
taking into account the improvement of Japan believes that its
existing fleet of ASM-1 anti-ship missiles, the performance can not
meet the need, and therefore decided to develop a successor to
ASM-1 missile, requirements
The missiles have greater range, speed, quickly in the other
shipboard air defense system, attack the fire outside the same
time, through stealth missile deck of the better anti-interference
ability of electronic systems to increase the missile hit
probability, 1990
By 1997, Japan launched the "future supersonic anti-ship missiles,"
the preliminary technical feasibility studies to determine the new
missile with integral ramjet, then in the "supersonic anti-ship
missile prototype bomb" project began under the integral
ramjet
Research in the Technology Division Ministry of Defense Tsuchiura
test site start and fuel characteristics of the ground test, field
test in Sapporo completed simulated altitude launch and flight
test, the success of these tests based on the 2002 Japan decided to
develop supersonic anti-ship
The prototype missile missiles, and plans to enter the real test in
2010, but due to schedule delays, the Japanese Diet in 2003
eliminated funding for this project from the project was formally
launched in 2004, 2006, the Japanese system the first XASM-3
test like bombs, and Japan
Air Self-Defense Force base in Gifu development flight test mission
F-2A aircraft were flying and hanging test.
Japan's parliament formally approved in 2010 amounted to 2.3
billion yen in the "new anti-ship missile development program", the
new missile is expected to launch in 2016, and the total investment
of about 32.5 billion yen.
ASM-3 development progress of the
diagram
Relevant images from the Japanese public view, ASM-3 form with the
French ASMP missiles similar to the open space, with streamlined
cylindrical missile body, the sides of conformal fuel tank, two are
located in wedge-shaped inlet missile
lower side, with some stealth capabilities, the tail of the
X-shaped arrangement of four was a small steering wing, front to
back the missile guidance section, respectively, fuel tanks and
ramjet three parts, according to the Japanese side of the relevant
information; ASM-3
approximately 6 meters in length and weighing about 900 kg, speed
up to M3, with a range of 150 km, inertial guidance system, plus
the last paragraph of the relay / Passive complex guidance system,
which has strong resistance to electronic interference.
It should be clear is that ASM-3 range, we know that different
ballistic missile profile, their range is different, high-altitude
thin air, the resistance is small, so the range on the large,
low-altitude air density, high resistance, so a range of small,
front ASMP
mentioned altitude range of 250 km, then to the significant
reduction in the low 90 km, then the ASM-3 is what the 150 km range
ballistic?
Technology from the Japan Ministry of Defense headquarters open
ASM-3 concept map using terms; ASM-3 has two ballistic, launching
high-altitude, high altitude cruise, and then the last paragraph of
lower height, sea-skimming targets, another is the low-emission,
low-
cruise, the last paragraph of sea-skimming attack from the concept
map view, only when high-altitude ballistic carrier aircraft
carrier-based air defense system only at the target outside the
scope of firepower, but still have to launch low-altitude air
defense system of the fire broke into each other within the scope
of the other
technologies listed in Part ASM-3 missile, compared with similar
foreign list, ASM-3 only gives a range of assessment "in" less than
ANF supersonic anti-ship missiles, the "big", given the latter's
low range of 150 km, 150 km so
I think that should be the ASM-3 high-altitude ballistic
data.
This indicator than the ASM-3 differences, of course, take into
account the ASM-3 with INS plus main / passive radar guidance
system, its size and weight are higher than ASMP pure inertial
guidance system, it appears guess the level of Japan's overall
Ramjet similar to Europe and the United States.
asm-3 ballistic profile
ASM-3 Structure diagram
ASM-3 compared with foreign technology
Japan's Air Self equipment ASM-2/93-type air-ship missile has range
of about 150 km / low trajectory, according to Japan's technical
strength, to upgrade to the harpoon BLOCK1D level, that is, a range
of more than 200 km without difficulties,
to an F-2 can be mounted up to 4 ASM-2 program, sent a 20-aircraft
attack waves has been able to suppress the neighboring countries
and regions, surface ships, then why should Japan develop
ASM-3?
We know as modern radar and datalink technology, on behalf of Aegis
ship surface ship combat air defense capability has been improved
several times, while the introduction of cooperative engagement
capability, but also allowed to have a breakthrough in antenna
attack of water over the horizon
target ability, low-altitude anti-ship missiles that cruise the
traditional tactics to reduce each other's detection capability,
thereby reducing the scope of its air defense system to combat
fire, and now have greatly reduced the effectiveness of this
tactic, then how to improve anti-ship missile strike
capability?
Use of radiation against the other party is a way of Aegis
destroyers, Aegis ships as a mobile radar platform, and ship to air
missile with a range of modern far, so need more than
anti-radiation missiles have a range, faster speed, greater
mobility
performance, which is integral ramjet possess advantages, in fact,
a trend of anti-radiation missiles now is replaced with a
monolithic solid rocket motor ramjet engine, and a is the ASM-3
main / passive guidance system, we know
To counter the use of passive anti-radiation guided missile,
developed countries ARM bait used to lure away from the
anti-radiation missiles, so the latest AGM-88E was introduced in
the guidance system active millimeter wave seeker for target
identification and development of
Active millimeter wave seeker for Japan is a piece of cake, that is
not so much an ASM-3 anti-ship missile, it would be a kind of
long-range anti-radiation missile, if developed in Japan for a
range of 150 type
kilometers of anti-ship missiles, others can not say anything, then
if this is a type range of 150 km, with passive homing, active
identification of anti-radiation missiles, then can not but alert,
which is why Japan should ASM hard -3 missiles and aircraft carriers in
China do not exist any relationship between the root causes.
ASM-3 test
Tested by the F-2 to implement
For Japan, its ambition is not limited to this fear, by ASM-3
Development of understanding of the whole Ramjet technology is only
the first step in its plan, this plan is by dragging, finish the
whole process of ramjet development, master
relevant theoretical knowledge, the use of accumulated engineering
experience, the training of relevant technical personnel, for the
development of more advanced scramjet basis, the existing
sub-combustion ramjet ramjet engine in fact, that air should slow
down before entering the fuel chamber
, acting as air, so its temperature rapidly Zengjia So the punch
engine speed Chaoguo 4M is very difficult, but yes scramjet
combustion air Zhijie into the combustion chamber, so it can speed
Ti Gaodao 5M aircraft above to achieve Gao Ultrasound
flight, if the flight is flying high ultrasound technology in the
history of a revolution, then the scramjet engine is the material
basis of this revolution. So scramjet is the development of
hot spots around the world race to one of the areas.
Scramjet is the basis for future hypersonic
aircraft
Japan's
future space plane
Japan began in 1984 of scramjet technology, have been completed and
can simulate altitude 35km, the number of flight speed M 8
hypersonic free jet test rig, to a large number of high-M
simulation test, 3 the end of 2002, Japan Airlines
the Space Technology Institute of scramjet combustion achieved the
first successful test of an effective thrust. In the same year on
May 23, in a simulated flight condition Ma = 8 scramjet combustion
test, made the flight in the Ma = 8
effective thrust under the world's highest, while Japan, Australia
and other countries is also associated with research in the field,
and plans to develop a type can be passenger for the 10 single
stage to orbit space plane, the successful development of these
technologies will mean the Japanese have a
cross continental, and global strike capability, that time can not
be known as the Self-Defense Forces of Japan Self-Defense Force is
really a problem?
By
ASM-3 program, Japan has established a perfect ramjet development,
testing system
For the future development laid a solid
foundation
Be prepared to treat many related projects in Japan, it seems only
willing to talk about other people's failures, it ignores Japan's
long-term strategy for the maintenance of related technologies; If
you see AESA is the direction of development of airborne radar, it
would prefer not to develop technology and the difficulty of
funding more
small PD radar, also developed for the F-2 AESA, could not build
aircraft carriers, destroyers on by helicopter to "Quxianjiuguo",
the nature of the effect is the same, that scramjet is sent to the
future, so investment-related research projects to gain
experience.
Tiger is tied with ropes tiger,
let alone the tiger's Okanagan has become increasingly thin
rope!