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Have you ever been to the flight line of a military base? It is very noisy. The hum of the jet engines piloted by officers wearing wings of lead. It is serious business being in the Air Force and it costs a lot of taxpayers dollars to run those jet engines, ground equipment and thinking of the flightline lighting costs.
from: http://ezinearticles.com/?United-States-Air-Force-Flight-Line&id=80998
