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| Re: Accident (403876) | |||
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Re: Accident |
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Posted by WillD on Fri Jan 16 21:03:22 2009, in response to Re: Accident, posted by cortelyounext on Thu Jan 15 18:57:26 2009. I would think a bird of any appreciable size (such as a goose) hitting the chicken wire at anything more than 150-200mph would dislodge the grate and knock it into the engine. Then instead of a bird carcass which is usually easily chopped up by the fan it's a bird carcass followed by metal debris which is guaranteed to destroy the fan, compressor, and turbine blades, as well as the combustion chamber.It is common for some helicopters, such as the Eurocopter Dauphin, to be equipped with a wire mesh grate over the turbine intake. But then its top speed is less than 200mph and the intake is far smaller than a CFM56's intake. |
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