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12:57pm on Wednesday, 21st April, 2010:
Comment
According to what I heard on the TV and radio this morning, the reason volcanic dust is such a problem for aircraft is that if it gets into the engines they all fail at once. Aircraft are designed to be able to fly with half their engines not working, but if they're all not working then they fall from the sky.
Hmm, maybe I'm missing something here, but isn't the solution to switch off half the engines before going anywhere near a cloud of ash? That way, only the half that are switched on will fail if the ash gets into them, and the others can be started up to get the aircraft to safety.
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Copyright © 2010 Richard Bartle (richard@mud.co.uk).