Missile defense gains another success
posted at 1:00 pm on December 4, 2008 by Ed Morrissey
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Should Israel attack Iran, or should we just blow one of their missiles out of the air during the mullahcracy’s next test? We may be able to do that now, after the Air Force scored another impressive success with its airborne missile-defense platform. IBD notes that the progress gives the US more flexibility in its military plans:
The news that Iran has enough nuclear material to build a nuclear weapon in relatively short order and is well along on missiles to deliver its nukes has put a sense of urgency on the proposed missile defense system slated for Poland and the Czech Republic.
Fortunately, another answer to the threat posed by rogue regimes like Iran and North Korea has just passed a critical milestone.
That answer is the YAL-1A, a modified Boeing 747-400F equipped with the Airborne Laser (ABL) system, which includes a high-energy chemical laser designed to destroy ballistic missiles in their very vulnerable boost phase, missiles such as Iran’s Shahab series.
The ABL program places a megawatt-class, high-energy Chemical Oxygen Iodine Laser (COIL) on a modified Boeing 747-400F aircraft to detect, track and destroy all classes of ballistic missiles. ABL also can pass information on launch sites, target tracks and predicted impact points to other layers of the global ballistic missile defense system.
This week, Boeing and the Missile Defense Agency announced another successful test — the first ground test of the entire weapon system integrated aboard the aircraft, including the firing of a high-energy laser through the ABL beam control/fire control system. Earlier tests had unit-tested other components of the system, particularly the ability to find, track and target missiles in flight.
After hitting the boost phase, a second shot would strike the missile itself, destroying it. The remnants would land on the nation that fired the missile, which might give them a few second thoughts about launching it in the first place. In fact, they’d have to pray that the second shot hits when the first shot succeeds.
Next January, the YAL-1A will attempt to shoot down an actual missile during the boost phase, which would make our abilities clear to the rest of the world — including the incoming administration. This gives us more options in dealing with rogue nations, and in deploying missile defense systems. As an option to installing fixed systems in nations where such facilities could create diplomatic tensions, a mobile airborne platform could fly continuous missions in international airspace around the countries posing threats.
The YAL-1A has another application as well. It can be used to protect the American coastline from submerged missile launches, a threat that had disappeared after the Cold War. If the Iranians can start building nuclear missiles, they may opt to start building submarines as launch platforms, following the lead of the US and the Soviet Union as a means of conducting a sneak attack. The precipitous drop in oil prices puts that kind of production out of reach of the Iranian economy, at least for now, but that won’t last forever.
General Henry Obering predicted three years ago that the Air Force missile-defense program would give the US its first “light saber”, playing off of the derogatory “Star Wars” label applied to the program by its critics. IBD says, “Let the (Air) Force be with us.” That force appears ready to take its place in America’s arsenal, and not a moment too soon.
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Technically true. Iran is ruled by a committee of crazed dictators who believe that God is going to give them victory. I’m less afraid of NK’s crazy leader. He has never expressed any interest in taking over the world, he just wants to assure that there is no challenge to his control over one part of it.
MarkTheGreat on December 5, 2008 at 8:38 AM
A couple of MW focused on a spot a few inches in diameter? Melt through will be a matter of milliseconds. Missiles are made to be as light as possible, plus during boost phase they are under a lot of mechanical stress. The destruction of a missile under boost by a MW laser would be pretty close to instantaneous.
The thing I don’t know is just how fast these lasers can be recharged. But given that they are chemical in nature, I would guess it would be a matter of pumping fresh juice into the reaction chamber. That would be limited by the size of the pumps used. I suspect that a production model could be recharged in a matter of seconds.
Additionally, boost phase lasts for as much as a minute.
Coordination of targeting is something that is already being done for military systems. It’s not that complex a technology.
MarkTheGreat on December 5, 2008 at 8:46 AM
A couple of MW from the laser is not the same as power delivered to target. There is a lot of attenuation in the atmosphere especially for IR wavelengths. They are absorbed by water vapour. Additionally there is a lot of dispersion which will reduce power by spreading the pulse in time. This can be handled with adapative optics but again, challenging to keep it tuned to optimum as the target moves through atmosphere.
Also, getting the beam focused to a few inches is very tough. The target is moving, the atmosphere in between is changing constantly, and so the beam diffraction must be actively adjusted.
As to chemicals etc., the chemical is in the cavity of the laser. You don’t change it. You just pump it optically by pouring in energy, usually optical energy from another source. But it is a valid question how many pulses they can get per second, and whether “MW” is peak power, average pulse power, or total power including the duty cycle.
So again, the big challenge here is to take the missile down quickly so that you can move the next target. It’s not much good destroying 1 out of 10 missiles launched. But it is a good start.
Gaunilon on December 5, 2008 at 11:50 AM
Well what would really give the Mullahs pause is if we sent in a black ops team to fill Ahmadinejad’s house with a big jiffy pop ball just like in Real Genius. Laze that sucker and produce the video to prove it works from a Keystone Satellite.
“Sorry Ahmadinejad, we didn’t have time to butter it for you!”
Dr. Dog on December 5, 2008 at 5:31 PM
Well I think it would be nifty to “blow one out of the sky on the next Iranian test” but you are a jumping the gun just a little bit. The ABL is not operational, and is only expected to perform its first lethal test in 2009. Therefore unless absolutely needed I would not expect to see it circling in a war zone anytime soon.
As for taking out a SLBM, ok. But there is one ABL and over 12,000 miles of US Coastline. Seeing as it would need to be in the air all the time, especially at time of launch covering both coasts and being at the right place and right time…I don’t think so. I would expect it to be used in theatre, when ready.
I am a passionate supporter of MDA. ALL aspects of it. So I am not trying to de-rail anything here. It is just important to keep an honesty about the argument. liberals are already gunning for the entire system. We don’t need to over play our hand.
Kudos to the men and women for the Dec. 5th success!
mdconservative on December 10, 2008 at 1:52 AM
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