Tuesday, July 25, 2006

A Solution for the Katyusha Problem?

Hizballah's continuing rocket offensive against northern Israel will probably speed deployment of the Skyguard rocket defense system, offered by Northrop-Grumman. Skyguard is essentially an updated version of the THAL (Tactical High Energy Laser) system, developed over the past decade by U.S. and Israeli researchers.

Jonathan Repka at DefenseTech.org provided some interesting details of THAL's history just as the current crises developed in the Middle East. As he notes, THAL showed great promise in tests at the White Sands Missile Range in New Mexico. But its operational deployment was eventually slowed by operational and logistical concerns. Generating the laser energy needed to zap incoming rockets and artillery shells required hundreds of gallons of toxic chemicals.

And, if that weren't enough, early THAL models were extremely bulky. One version was housed in eight, 40-foot shipping containers. Imagine trying to move a system that size around a battlefield, or across the rugged terrain of northern Israel. Eventually, the Israeli government dropped out of the program and the U.S. put THAL on the backburner, in hopes that solid state electrical laser technology would solve the environmental and logistical problems.

So far, the solid state lasers haven't really panned out, and (in light of the Hizballah threat), THAL/Skyguard suddenly has a new lease on life. Northrop-Grumman representatives recently met with Israeli officials, and have proposed a slightly scaled-down version of the laser system, at a cost of $200 million, plus $1,000 a shot. The contractor is currently pursuing an export license for the system, which the Pentagon is almost certain to approve. The IDF's push into south Lebanon will mitigate the current rocket problem (to some degree), but Israel needs a long-term, technology-based solution. Skyguard may not be the ultimate answer, but it can provide a much-needed, short-term defensive capability against the Katyusha threat.


D Woodard said...

so, what does this THAL system do to the rocket? I thought that lasers would confuse the internal circuitry of the missile, causing it to get confused, and either self destruct, or veer way off course.

With these bottle rockets on steroids, there is no circuitry to confuse.

Wanderlust said...

THEL fries the missile, and works equally well on "dumb" artillery shells.

The video of the White Sands tests is really, really cool.

Now, if only the thing can also take out shaheeds who wear bomb belts...

Papa Ray said...

These arrays would only be suitable for fixed installations, which is what I imagine Israel has in mind. They will have to be situated in areas away from human habitation as the precieved danger to the public would make them very unpopular.

If Israel is interested in an ultimate answer there may be one available in three to five years that doesn't use chemicals.

That is, if it works as planned and is not canceled.

Papa Ray
West Texas

SMSgt Mac said...

First off: Great Blog!
THEL was the original system concept. It tested out so well that the US and Israel changed their end objective for the program to produce a more mobile version, or M-THEL. 'Skyguard' is an even more refined system.

Semi-fixed defensive systems are probably more practical in Israel than any other place in the world.
1. A relatively small number of systems could provide overlapping fields of fire,
2. They have a very small footprint, and in many cases can be placed on existing and secure military installations, and
3. They definitely have a proven need.

I'm sure there are quite a few 'someones' in Tel Aviv who regret very much their decision to assume risk for the sake of the defense budget when they decided to drag out the M-THEL program. I'd also be surprised if they weren't working like gangbusters to speed it up again.