*US hails airborne laser as weapons milestone*
28 Oct 2006 23:06:54 GMT
Source: Reuters
By Jim Wolf
WASHINGTON, Oct 28 (Reuters) - The head of the Pentagon's Missile
Defense Agency on Friday hailed what he cast as epochal progress toward
putting a high-energy laser aboard a modified Boeing Co. <BA.N> 747 to
zap ballistic missiles that could be fired by North Korea and Iran.
But the Pentagon's former top weapons tester poured doubt on the
project, saying it faced major technical hurdles and might be defeated
by a simple countermeasure.
The Airborne Laser has been developed at a cost so far of about $3.5
billion with the aim of destroying, at the speed of light, all classes
of ballistic missiles shortly after their launch. If successful in
flight testing and deployed, it would become part of an emerging U.S.
anti-missile shield that also includes land- and sea-based interceptor
missiles.
"You've demonstrated capability on the ground," Air Force Lt. Gen. Henry
Obering said at a ceremony at which the aircraft was rolled out of a
Wichita, Kansas, hangar where it has been undergoing modifications.
"Not since that time nearly twenty-two hundred years ago, when
Archimedes reflected the sun's rays to set the Roman fleet on fire off
Syracuse, has the world seen a weapon that puts fresh meaning into the
phrase 'in real time'."
"Let's do it now in flight," Obering told employees of Boeing, the prime
contractor, and chief subcontractors Lockheed Martin Corp. <LMT.N> and
Northrop Grumman Corp. <NOC.N> at the event.
Philip Coyle, the Pentagon's chief weapons tester under former President
Bill Clinton and now at the private Center for Defense Information, said
in an e-mail reply to Reuters that the ABL's effectiveness appeared
doubtful.
"If a laser can be developed with enough power to penetrate the
atmosphere and still be lethal once it reaches a target, an enemy would
only need to put a reflective coating on the outside of its missiles to
bounce off the laser beam, making it harmless," he said.
A Missile Defense Agency spokesman, Richard Lehner, in an e-mailed reply
to Reuters, responded that "abrasion" during the early stage of a
missile's launch would erase the reflective capabilities of any such
coating.
He added that the project currently involved a single "developmental"
aircraft, with no others to be purchased until officials were satisfied
the system would be successful.
PENTAGON SEES BIG POTENTIAL
Engineers are to start installing a high-energy chemical oxygen iodine
laser on the modified jumbo jet next year, with the first missile
intercept test to take place in late 2008.
Pat Shanahan, vice president and general manager of Boeing Missile
Defense Systems, said engineers had demonstrated "enormous progress
toward ushering in a new age of technology, namely directed energy weapons."
Obering said the technology had the potential to change the nature of
warfare.
"The news from North Korea and Iran has been consistently bleak," he
said, referring to programs to "arm ballistic missiles of increasingly
long range with lethal payloads."
In Wichita, engineers fully integrated the Lockheed-designed systems
that control the beam and firing mechanisms in the aircraft, a modified
747-400F, Boeing said.
"The program achieved most of the objectives of the ground tests and
expects to satisfy the remaining ones in the coming months," the company
said in a statement.
Coyle said Boeing had omitted the "basic scientific and technical
limitations that stand in the way of achieving an effective system."
Northrop Grumman supplies both the high-energy laser and a beacon
illuminator laser used to measure atmospheric turbulence that it would
encounter on its path to the target.