But the former Army engineer built peerless helicopters.

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The jury of three men and nine women was told that in 2009 Mr Alexander, a former Army Royal Engineer, admitted similar offences and charges including possessing firearms and ammunition with intent to endanger life.

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Now graduated, Aram is investigating a career in the Army as an engineer.

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The army's chief engineer says it could take up to 30 days to remove the water, and New Orleans officials have said it could be several months before those who fled before Katrina hit are able to return.

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Drew Smith, a hydraulic engineer with the Army Corps of Engineers, wouldn't speculate on the specific cause of Sunday's crash, which is under investigation by the Coast Guard.

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"You'd have to make a 20-point turn to get a truck in, " said Martin Dougherty, an engineer overseeing the project for the Army Corps.

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The court heard that Wells, a former Royal Engineer, had been in the Army from the ages of 16 to 21, serving in Macedonia and Sierra Leone.

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He joined the army in New York City, where he was working as an architect and engineer.

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