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Edited by Noah Shachtman | Contact

Missile Defense Scores ... Finally

After several failed test shots and a seven-year flight hiatus, the Army's Terminal High-Altitude Air Defense missile system (THAAD) hit a Hera target this morning over the White Sands range in New Mexico.

THAAD FTT-03 Launch.jpgA Lockheed Martin press release expounds:

Specific test objectives included demonstrating the integration of the radar, launcher, fire control and communications and interceptor operations; demonstrating kill vehicle control in response to in-flight uplinks; and target acquisition and tracking by the interceptor’s seeker.

“The entire THAAD team has been focused on proving THAAD’s ability to detect, track and engage a live target,” said Tom McGrath, program manager and vice president for THAAD at Lockheed Martin.

This is the third successful THAAD developmental flight test conducted since flight testing resumed for the program in November 2005. A successful controlled flight test was conducted last year, followed by a successful integrated test of the entire THAAD system in May of 2006.

THAAD is expected to complement the PAC-3 (Patriot) interceptor in providing terminal-phase defense against short- and intermediate-range ballistic missiles. In other words, it might take out Scuds and maybe even Taepodongs, but don't expect to knock down ICBMs. THAAD has a longer range and more energy than PAC-3, meaning it can hit targets much higher.

But don't get too excited. Today's test included just one non-maneuvering target with no decoys and no debris. So this was about as easy as a test can get. Now the $10-billion THAAD moves to a missile range off of Hawaii for several more test flights at longer and shorter ranges. Hopefully some of these tests will be more realistic.

If all goes well, THAAD will be operational in "a few years", according to McGrath.

Read more at Military.com.

--David Axe

UPDATE 4:37 PM: "MDA's accomplishment today is a real one," adds Victoria Samson, the resident missile guru at the Center for Defense Information -- and a frequent critic of the missile defense program.

THAAD was the first missile defense system to be called a "rush to failure" (but apparently not the last one to earn that moniker). THAAD has been reorganized, revamped, and basically renewed. However, today's test intercept is just one step among many - THAAD has a long way to go before it has proven itself to be reliable and worthy of ramping up production and deployment.

Also, note that an intercept was officially not the primary objective - seeker characterization of the target was. This could be seen as MDA trying to walk before it can run - a good thing. Or it can be what we're seeing in the GMD program: an attempt to downplay expectations so that any news is good news.

Latest Comments

Defence contracts - nice work if you can get it!

Posted by: Bruce at September 2, 2006 11:26 PM


Wrong again people! "The Patriot Act" is the best ABM defense there is. I have been living under it for years and no Missiles have hit me yet!True story!

Posted by: Jaye at July 25, 2006 7:29 AM


Correction: THAAD hit twice in 1999. Odd that I should have forgotten, given that I observed the second one.

Posted by: Slartibartfast at July 24, 2006 4:03 PM


Oh, and regarding "finally": THAAD hit twice back in 1998, after which they decided to move on to the objective system design.

Posted by: Slartibartfast at July 24, 2006 2:02 PM


"Byron, those homing devices were utilized because there was no radar integrated with the system. This test involved radar, so there was no homing device."

More correctly, there never was a homing device. Ever. Early in the flight test program, before there was a GBR available, the target vehicle had a beacon that made it more visible to range radars. The range radars tracked the beacon and computed a fire control solution for the missile, and also computed updates to that solution that were uplinked to the missile. So until GBR came online, those THAAD tests were test of the missile segment and not the GBR. AFter GBR came online, the C-band track was not used to aid in the mission.

Also on the target was a GPS translator to aid in trajectory reconstruction. The GPS translator data was only converted to trajectory after the flight test and was never used to aid in the intercept.

Neither of these things would be useful in the mission after acquisition, anyways, as they both introduce excessive lag in the homing guidance loop.

Posted by: Slartibartfast at July 24, 2006 1:59 PM


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