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27th Mar 2005, 19:32

#15 (permalink)

Dave_Jackson

Join Date: Apr 2003

Location: Vancouver, BC, Canada

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A fire draws fresh air in from the sides and 'discharges' the spent air upward. A low velocity downwash from a helicopter would oppose this action. Perhaps it helps keep the de-oxygenated air at the point of the fire.

Just a guess.

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