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Blitzer
11-12-2007, 14:21
New Army Chopper Found Unsafe (http://www.military.com/NewsContent/0,13319,155898,00.html?ESRC=eb.nl)

Associated Press | November 10, 2007

<!--- End Article Title/Source/Date ---><!--- Start Article Content --->SACRAMENTO, Calif. - The Army is spending $2.6 billion on hundreds of European-designed helicopters for homeland security and disaster relief that turn out to have a crucial flaw: They aren't safe to fly on hot days, according to an internal report obtained by The Associated Press.

While the Army scrambles to fix the problem - potentially adding millions to the taxpayer cost - at least one high-ranking lawmaker is calling for the whole deal to be scrapped.


During flight tests in Southern California in mild, 80-degree weather, cockpit temperatures in the UH-72A Lakota soared above 104 degrees, the point at which the Army says the communication, navigation and flight control systems can overheat and shut down.


No cockpit equipment failed during the nearly 23 hours of testing, according to the report, prepared for the Army in July. But it concluded that the aircraft "is not effective for use in hot environments."


The Army told the AP that to fix the cockpit overheating problem, it will take the highly unusual step of adding air conditioners to many of the 322 helicopters ordered.


The Army did not respond to questions about how much the retrofitting will cost and who will bear the expense.


California Rep. Duncan Hunter, the ranking Republican on the House Armed Services Committee, told the AP that the lightweight helicopter will still have too many weaknesses.


"In my view, we would be well advised to terminate the planned buy of 322 Lakota helicopters and purchase instead additional Blackhawk helicopters," Hunter said in a letter this week to Army Secretary Pete Geren.


But Army spokesman Maj. Tom McCuin at the Pentagon said: "It's certainly a concern to people out there in the field now because it's hot in those cockpits, but it's being fixed."


The Army has received 12 of the Lakotas so far from the American Eurocopter Corp., a North American division of Germany's European Aeronautic Defence and Space Co., or EADS. Testing on the first six by an independent arm of the Pentagon revealed the problems. The rest of the choppers are scheduled for delivery to the active-duty Army and the National Guard over the next eight years.


The Lakota represents the Army's first major effort to adapt commercially available helicopters for military use. Air conditioning is standard in commercial versions of the aircraft, which have not had overheating problems. But the military usually avoids air conditioning in military aircraft to reduce weight and increase performance.


"We don't need air conditioning in the Blackhawks, so we didn't think it would be an issue" in the Lakota, McCuin said. "But when we got the helicopter into the desert, we realized it was a problem."


The Army plans to use the Lakota for such things as search-and-rescue missions in disaster areas, evacuation of injured people, reconnaissance, disaster relief and VIP tours for members of Congress and Army brass. All of its missions will be in the U.S. or other non-combat zones.


Blackhawks, Chinooks and other helicopters will still be available for more demanding duties, such as fighting wildfires or mass evacuations.
EADS spokesman Guy Hicks declined to comment directly on the criticism leveled against the aircraft. "We're proud of our partnership with the Army and the UH-72A, but we defer on anything to do with aircraft requirements and performance. It's the Army's program and they should address that," he said.


The commercial purchase was designed partly to cut costs and quickly get aircraft into the field to replace two aging Vietnam-era helicopters, the Kiowa and Huey. The Army said the Lakota will also free up more Blackhawks to send to Iraq for medical evacuation flights.


The Lakota has another problem: Testers said it fails to meet the Army's requirement that it be able to simultaneously evacuate two critically injured patients. The Lakota can hold two patients, but the cabin is too cramped for medics to actually work on more than one of them at a time, the testers said.


Also, the Lakota cannot lift a standard 2,200-pound firefighting water bucket, but can handle a 1,400-pound one. The Army said it had no intention of using the Lakota to fight wildfires. But Hunter said the military should be buying versatile aircraft useful in any domestic disaster.
The report by Dr. Charles McQueary, the Defense Department's director of operational testing, said that overall, the Lakota performs better than the Kiowa or Huey and pilots found it easy to fly.


But the report said inadequate ventilation, heat emitted by aircraft electronics and sunlight streaming through the large windows caused cockpit temperatures to reach 104.9 degrees during a simulated mission in California.


The report did not say how long the helicopter was in the air before it reached that temperature. The Lakota is supposed to be able to fly for 2.8 hours.


The aircraft's safe operating limit is 104 degrees, according to the Army. Beyond that, alarms may sound, signaling the pilot has 30 minutes before possible system shutdown, the report said. It said pilots should land as soon as possible or take other action to cool the cockpit.


Kim Henry, a spokeswoman for the U.S. Army Aviation & Missile Command at the Redstone Arsenal in Alabama, said that the Army began outfitting the helicopters with vents after the report was issued and that they have been effective at lowering temperatures.


However, the Army decided it still needs to put air conditioning on many of the choppers, including all those configured for medical evacuations, McCuin said.


Despite the needed fixes, McCuin and other officers familiar with the Lakota lauded the aircraft, pointing to parts of McQueary's report that found the aircraft does meet hovering, range, endurance and speed requirements.
The Army officials also stressed that the problems are being discovered and dealt with now, when just a few of the helicopters have arrived.


Loren Thompson, a military analyst with the Lexington Institute, a defense think tank in Virginia, said the Army is facing a new kind of criticism over the Lakota. Whereas the Army has been ridiculed for decades for overspending on aircraft, it now faces questions of whether it was too cost-conscious.
"The Army may be learning that its performance requirements are so demanding that adapting commercial helicopters is almost as hard as starting from scratch on a new military design," Thompson said.
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Sound Off...What do you think? Join the discussion. (http://forums.military.com/1/OpenTopic?a=dl&f=672198221&s=78919038&x_id=155898&x_subject=New%20Army%20Chopper%20Found%20Unsafe&x_dpp=Y&x_link=http://www.military.com/NewsContent/0,13319,155898,00.html)

MOTHERGREEN
11-12-2007, 14:26
air conditioners produce heat too.. cheap (ha!) fix for a crappy aircraft.. might suggest a change in aircraft eh..

mitchshrader
11-12-2007, 14:35
buy american.

Ghost-1
11-14-2007, 07:34
Just get more Blackhawks. They are a proven design and they work. If it aint broke dont fix it.

Sapperstang
11-22-2007, 18:49
Just get more Blackhawks. They are a proven design and they work. If it aint broke dont fix it.

Exactly what I was thinking.

slewfoot
11-22-2007, 19:23
Who made money on this deal?

AirCav
11-24-2007, 02:51
The LUH flyoff competition included the Bell 412EP (made in Canada), MD Explorer (made in USA), the AgustaWestland US139 (Italian/British), and the EC145 entry by EADS (French/German) which was ultimately selected by the Army. Initially they will be manufactured in Germany until the American Eurocopter facility in Columbus, Mississippi finishes expansion.

The concern is not that our sissy boy Army pilots can't hang because it's hot. Our OH58D, CH47, and UH60 crews in Iraq are testament to that. (although those models can be flown with doors open or removed for ventilation The EC145 is not designed for that)

The LUH is basically an off-the-shelf civilian helicopter (EC145) never intended to be operated without air conditioning. The instruments and "dash" components used in modern helicopters (glass cockpit) cannot tolerate extreme heat and need to be cooled, just like any other computer device. This particular model also has an extensive amount of windscreen glass increasing the "greenhouse effect." Why the Army spec'd no a/c? I don't know. The original AH-1 Cobra came without a/c, too, but it was subsequently added for the same reasons. I do know that it will be more expensive to retrofit than to have included it from the start.

The LUH isn't intended to replace the Blackhawk. It isn't in the same league. The Blackhawk is seen as overkill for many if not most of our Stateside missions that could be done with a smaller and less costly helicopter. This also has the side benefit of freeing up some of the Stateside Blackhawks for overseas duty.

The EC145 is well thought of in the civilian community and used extensively as an air ambulance. It is used to do two patient transports but it's tight. It is not a Huey. Put the a/c back in, fit it with engine barrier inlet filters like it should have had from the start, and I think it will be a good fit for its stated mission.

What blows my mind is if this is a "quick, off-the-shelf" solution, how long could we expect a new purpose built aircraft to take? The program began in early 2004 and the contract was awarded in 2005. The Army's new Bell ARH-70 project is even worse off.

Jammer Six
11-24-2007, 04:08
buy american.
There is absolutely no excuse for buying less than the best available product, be it body armor, bullets or helicopters. None.

"Buy American" only works if an American steps the hell up to the plate and produces the best product-- best from an 17 year old PFC's point of view.

"Those who don't understand history... " etc., etc.

Chau-Chau. To chrome-line or not to chrome-line. M4A1-75w. "It's self-cleaning." Einstein. .38 revolvers.

Get out of my face.

America does not have a monopoly on genius, invention or inspiration.

When it comes to our military gear, buy, develop or invent the BEST IN THE WORLD.

Regardless of anything else.

Carry on.

P.S. When the last modern, computer driven, fly-by-wire future Whiz-chopper is flown to the bone-yard, the crew will hitch a ride home in a Huey with bullet holes.

onesiphorus
12-21-2007, 21:03
Nothing new about air conditioning, Cobras had it in VN.

AirCav
12-21-2007, 22:15
Yes, Cobras had an ECS in Viet Nam, but not initially. It was added in the field and subsequently incorporated in production models after it was realized that all that "glass" created too much greenhouse heat.

That was the point of my comment above, the Army doesn't seem to learn from previous mistakes.

Bren
12-21-2007, 22:44
Just get more Blackhawks. They are a proven design and they work. If it aint broke dont fix it.

I don't know, I was in the Army in the 80's when the whole Blackhawk fleet was groundd because they kept falling out of the sky, missing their rotors, for not good reason.