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Old 25th Jun 2006, 14:24
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barit1
 
Join Date: Feb 2005
Location: flyover country USA
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One of the big 4-engine (Consolidated-Vultee?) flying boats of WWII started out with 3-bladed props, but the inboards received so much erosion due to spray that they changed the inboards (only) to smaller-diameter four-blade props.
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