They affect the air and the ability to provide close air support, and they provide cover for forces that want to get along your supply lines and shoot at you close.
If Angola commits its relatively well-equipped air force to Congo, it could close the air-bridge the rebels are using to ferry troops from the east to their western front.
So if the C919 is to be commercially viable, COMAC needs to get the plane up in the air on or close to its ambitious schedule while the market for medium-range aircraft remains hot.
From the air, close to 400 villas fan out into the ocean in the shape of a giant palm tree, much like the Palm in Dubai -- a grandiose development that has been plagued with problems from its inception.
Donut's base is home to several dozen A-10 Warthogs, aircraft that give close air support to troops on the front lines.
The Albrook air station is soon to close, and by the end of this year barely 4, 000 American servicemen will remain.
The agency said it had no choice but to subject most of its 47, 000 employees, including tower controllers, to periodic furloughs and to close air traffic facilities at small airports with lighter traffic.
The ministry did say air force operations are continuing, including in the Tessalit region, where close to 100 air sorties were carried out this week.
They asked the U.S.-led military coalition to dispatch close air support.
The good news is that the FAA has delayed to June the decision to close 149 air traffic control towers at general aviation airports around the country.
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As he prepares to walk away, Cambara remarks that they are close to an open-air market.
Shafik, a former air force officer with close ties to Egypt's powerful military, has attempted to distance himself from Egypt's deposed leader.
If that's the case it could save the dozens of small coal plants that now look sure to close as clean air rules tighten over the next several years.
Shafik, also a former air force officer with close ties to Egypt's powerful military, is seen as representing the interests of the old guard -- those who lost out when President Mubarak was ousted.
Like Mubarak, Shafik is a former air force officer with close ties to Egypt's powerful military and was "the quintessential candidate of the counterrevolution, " said Khaled Elgindy, a visiting fellow at the Brookings Institution in Washington.
Like Mubarak, Shafik is a former Air Force officer with close ties to Egypt's powerful military, "the quintessential candidate of the counter-revolution, " in the words of Khaled Elgindy, a visiting fellow at the Brookings Institution in Washington.
The flames came dangerously close to the Air Force Academy's main campus, and an evacuation order was issued for about 700 residents in its Pine Valley Housing and 1, 400 in Douglass Valley Housing, said public affairs officer John Van Winkle.
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Like it or not, we've become hooked on being constantly connected, and passengers who are able to maintain that connection while six miles in the air appear to be traveling in a state of something close to silent, electronically-sated, tunnel-vision bliss.
Some models have grille shutters that close to lock out air flow and improve aerodynamics on the highway.
And since his sacking, it turns out that of the 230-odd aspiring writers of historical fiction, 78 were officers in Japan's air force, most of them close to their general.
It carries a host of satellite and laser-guided bombs and is able to remain over targets for long periods of time to assist in close-air support for troops on the ground.
Yes, it's one really thin and light machine, and in terms of numbers, it comes extremely close to rivaling the MacBook Air.
So we are beginning today discussions with our unions to likely close more than 100 air traffic control towers at airports with fewer than 150, 000 flight operations per year.
The Argentine keeper was less convincing from the following corner, though, flapping at thin air and then turning to see Collins's close-range shot blocked on the line by Clyne.
Now UPS is testing a technology designed to close that gap and, possibly, bring sweeping new efficiencies to the entire air traffic control system without compromising safety.
He also urges ministers to resist any attempts by power generators to keep open old coal stations which are due to close under an EU directive on air pollution.
They compared how close people were to the bracing sea air and their answer to a question about their own health.
Catherine, wearing a Games jacket, was seen clapping her hands above her head and punching the air as they beat rivals Germany in a close sprint to the line.
Instead of sparking the ignition when the piston is close to top dead center (when the air is compressed), that spark occurs as the piston is pulling away, when the air pressure is at its most turbulent, creating much faster ignition and more power.
And last April, Sudan and South Sudan slipped close to all-out war in series of air and ground exchanges.
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