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Old 7th Mar 2006, 13:11
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Dude~
 
Join Date: May 2001
Location: Far East
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Turning propellers by hand

I read in the March Pilot magazine that if you do have to move a propeller that you should turn it backwards which is what I advise my students.

However, the article in the magazine continues with a caution that turning a prop backwards can 'shatter the vanes in the vacum pump'.

This is new to me so can anyone offer any more information on this possibility? I have had a thorough look in our PA28 POH and can find no mention of it.
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