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Old 06-24-2019, 07:29 AM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
Posts: 8,887
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Given the wide speed range of an RV model, variable exit area will far superior to fixed louvers.

I'd suggest arranging things so exit area varies from 25% less than stock to 50% more than stock, fully closed to fully open.
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Dan Horton
RV-8 SS
Barrett IO-390
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