Showing posts with label Ballistic Missile. Show all posts
Showing posts with label Ballistic Missile. Show all posts

Chinese DongFeng 31A (CSS-9) Intercontinental Ballistic Missile

The DongFeng 31A (NATO reporting name: CSS-9 Mod-2) is a road-mobile, three-stage, solid-propellant intercontinental ballistic missile (ICBM), designed to carry a single 1,000kT thermal nuclear warhead.

The missile was developed from the DongFeng 31 (CSS-9), with extended range and improved performance. About 10 DongFeng 31A missiles have been deployed by the PLA Second Artillery Corps since 2006~07 to supplement its silo-based DongFeng 5 (CSS-4) ICBM. A submarine-launched ballistic missile JuLang 2 is also being developed based on the DongFeng 31 technology.

The DongFeng 31A offers a number of technological and operational advantages over older Chinese missiles such as DF-4 (CSS-3). Instead of being launched from a fixed location, the DongFeng 31A can be transported on its transporter-erector-launcher (TEL) vehicle to one of many predetermined launch sites, giving greater survivability in the event of a first strike.

The use of solid propellant gives the missile a longer service lifespan and shorter launch preparation time compared to the liquid fuel ICBMs.

The DongFeng 31A is said to be armed with a lightweight warhead allegedly copied from the U.S. W-88 or W-70 warhead designs, though so far no sound evidence has been found to support this claim.

Furthermore, the DongFeng 31A is believed to have incorporated many advanced technologies similar to current generation Russian ICBMs, including the use of penetration aids such as decoys or chaffs to complicate enemy’s missile warning and defence system.

Specifications

Official name: DongFeng 31A (DF-31A)
NATO reporting name: CSS-9 Mod-2
Contractor: CASIC 4th Academy
Service status: In service
Configuration: Three-stage, solid propellant
Deployment: Road mobile, 8X8 tractor truck + 8-wheel trailer; or silo
Length: 13m
Body diameter: 2.25m
Launch weight: 42,000kg
Range: 10,700~11,200km
Re-entry vehicle mass: 700kg (or 1,050~1,750kg)
Warhead: One single 1,000kT yield
Guidance: Inertial + stellar update
Accuracy: 100~300m CEP
Launch preparation time: 15~30 min

Chinese Aircraft Carrier Killer DF-21D

 


The U.S. Navy believes that the long rumored Chinese anti-ship ballistic missile, the DF-21D, is operational. This despite the fact that, as far as anyone knows, or will admit, the complete system has not been tested. There are hints that there were some tests last Summer, and that all the components of the system are present and working. There are photos of DF-21Ds on TELs (transporter erector launcher vehicles), and announcements of new units recently activated for the 2nd Artillery Missile Brigade, equipped with DF-21 missiles. Since all that took place a few months ago, Chinese officials have spoken about not being as concerned about American aircraft carriers. But the key event occurred last August.
Back then, China launched another "remote sensing" satellite, joining two others in a similar orbit. These three birds are moving in formation, at an altitude of 600 kilometers, across the Pacific. Equipped with either radar (SAR, or synthetic aperture radar) or digital cameras, these three birds can scan the ocean for ships, even though the Chinese say their purpose is purely scientific. A typical SAR can produce photo quality images at different resolutions. At medium resolution (3 meters) the radar covers an area 40x40 kilometers. Low resolution (20 meters) covers 100x100 kilometers. This three satellite Chinese posse looks suspiciously like a military ocean surveillance system. This is the missing link for the rumored Chinese ballistic missile system for attacking American aircraft carriers.
For nearly five years, there have been stories (in the West) about how China was working on targeting systems for its ballistic missiles, that would enable them to seek out and hit aircraft carriers. Such sensors would use infrared (heat seeking) technology for their final approach. This sort of thing had been discussed for decades, but China appeared (according to pundits and headline hungry media) to be putting together tactics, and missile systems, that could make this work. The key was having multiple sensor systems, either satellites, submarines or maritime patrol aircraft, that could find the general location of the carrier, before launching the ballistic missile (like a DF-21, with a range of 1,700 kilometers). Those sensors appear to be operational, as do the other elements needed to make the DF-21D work.


Topol Stays On Top




Russia announced that it is investing half a billion dollars, over the next three years, to expand ballistic missile production capability. With this investment, Russia will be able to double ballistic missile production by 2013. The government plans to spend over $2.5 billion buying various versions of the Topol ICBM, as well as the shorter range Iskander through the end of the decade. Unable to create an army or navy capable of defending their vast borders, Russia is building up the one weapon, nuclear armed ballistic missiles, that will be most likely to keep potential invaders out.
The original Topol was the first mobile ICBM, and entered service in the late 1980s, and the first solid fuel ICBM. The U.S. introduced solid fuel rockets for ICBMs in the early 1960s, but it took Russia two more decades to master this technology. The original Topols are now being retired, and only about 200 of the 360 originally manufactured are still in service. Three new Topol variants will soon become the most common Russian ICBM. The Topol family of missiles have been quite reliable. A year ago, Russia announced that the latest version of its Topol series of solid-fuel ICBMs; the RS-24, had entered service. The RS-24 appears to be a slightly heavier version of the 46 ton Topol-M (or RS-12M1/M2). The RS-24 will be deployed in silos as well as on wheeled vehicles. Only a few of the RS-24s are in service, with a least one of them on a wheeled vehicle. The RS-24 carried more warheads (up to ten) than the Topol-M. The Russians developed the RS-24 to enable them to use all the additional warheads to penetrate American missile defenses.
Meanwhile, the overall Topol force grows. In late 2008 Russia activated another two battalions (three missiles each) of Topol-M ICBMs. These were the road-mobile versions, that avoid destruction in a first strike, by constantly moving around on the roads 200-300 kilometers northeast of Moscow.
Of the other 60+ Topol-M missiles in service, over 80 per cent are fired from underground silos. There are now at least fourteen road mobile Topol M missiles in service. The 17.4 meter (54 foot) long transporter for these 46 ton missiles is a 16 wheel vehicle, using a 710 horsepower diesel engine. Russia continues to make component and design improvements to its most modern ICBM, the Topol M. This has increased its service life from ten to 21 years.
Russia is in the midst of replacing Cold War era RS-18 (SS-19) and RS-20 (SS-18) ICBMs with the newer Topol M (also known as the SS-27 in the West), more rapidly than earlier planned. This is the result of more money being allocated to buying ICBMs, and more reliable new ICBMs becoming available. Even so, Russia is not producing enough Topol Ms each year to replace the older liquid fuel missiles before they reach the end of their planned service life. So these older missiles are being refurbished, to extend their time in service.
But Topol tech is not always the answer. A naval version of the Topol M (the RSM-56 Bulava), for use on SSBN submarines, was supposed to enter mass production in 2008, but technical problems caused that to be delayed for another three years. Too many of Bulava test launches failed. The problem was traced to a widespread loss of skilled researchers and technical people, to better paying non-defense jobs. The government threw more money, and better management, at the Bulava, and that appears to have helped a lot.
Meanwhile, Russia continues to test launch older RS-18 and RS-20 ICBMs. Russia still has over a hundred (out of a 1980s peak of 360) RS-18s in service, and expects to keep some of them active into the next decade. The test firings for the last five years have been successful, and other quality-control tests have come back positive. The 106 ton, 24.5 meter/76 foot long missile uses storable liquid fuel, meaning that the missile is inherently more complex than a solid fuel missile.
Meanwhile, the RS-18 entered service in 1975, and it wasn't until the 1980s that Russia began producing reliable solid fuel rocket motors, large enough for ICBMs (the 45 ton RS-12M). The last RS-18s were manufactured in 1990, and Russia expects each of them to have a useful life of 30 years via the same kind of product improvements being applied to the Topol M. Annual test launches ensure reliability.
The RS-18 was developed as a "light" ICBM, in effect, a competitor for the U.S. Minuteman series. The RS-18 was the first Russian ICBM to carry MIRV (Multiple, Independent Reentry Vehicles). That means each warhead had its own guidance system. The RS-18 carries six warheads, and has a range of 10,000 kilometers. Topol-M has a range of 11,000 kilometers. Russia is also extending the life of its heavier (217 ton) RS-20 ICBMs to 30 years. This missile carries ten warheads, and is also being converted to launch satellites.
The Bulava debacle forced the government to deal with the personnel problems in the defense industries. As the civilian economy boomed after the Soviet Union dissolved, the mighty Soviet defense industries shriveled. The defense firms not only shrank in size, they also lost a disproportionate number of their most skilled design and manufacturing personnel. While during the Soviet period, the best paying jobs were in defense, since 1991, that has shifted to commercial firms, or overseas. Bulava forced the government, and the defense industries, to acknowledge that they could not create first class weapons with second class staff.

Strategy Page.

Straight Out Of Nowhere; The DF-16


Taiwan revealed that China has deployed a new ballistic missile, the DF (Dongfeng) 16 and that some of them are aimed at Taiwan. The DF-16 has never been mentioned publically before. It appears to be an upgrade of the DF-15, as the Taiwanese announcement only described the DF-16 as having a "longer range." Most of the 1,600 ballistic missiles aimed at Taiwan are DF-11 and DF-15 models. The DF-11 (also known as the M11) weighs 4.2 tons, has a range of 300 kilometers and carries a .8 ton warhead. The DF-15 (M9) weighs 6.2 tons, has a range of 700 kilometers and carries a half ton warhead. Both of these are solid fuel missiles, so the DF-16 probably would be as well. A "longer range" DF-15 would likely weigh over eight tons and have a range of 1,000 kilometers or more. Or something like that. No one else has mentioned a DF-16 missile, but the Chinese were known to have been continuing work on the DF-11/DF-16 class missiles, particularly warhead design (as in penetration aids to defeat anti-missile systems.) Give it a few months, and more details will come out.

Strategy Page.

Russia's RSD-10 Ballistic Missile


























RSD-10 Pioneer
SS-20 Saber

TypeIntermediate-range ballistic missile
Place of origin Soviet Union
Service history
In service1976–1988
Used bySoviet Strategic Rocket Forces
Production history
DesignerMoscow Institute of Thermal Technology
ManufacturerVotkinsk Machine Building Plant
Specifications
Weight37,100 kg (82,000 lb)
Length16.5 m (54 ft)
Diameter1.8 m (5 ft 11 in)

WarheadThree 150 kT MIRVs

EngineTwo-stage solid propellant
Operational
range
5,500 km (3,400 mi)
Guidance
system
Inertial
Accuracy150-450 m CEP
Launch
platform
Road-mobile TEL