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Old 07-19-2016 | 04:59 PM
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Hydro Junkie
 
Joined: Nov 2004
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From: Marysville, WA
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Originally Posted by MARK JR
I just found out that a 15 cc engine is a .91do you agree?
It's either a .91 or, as I've seen listed on some charts, a 1.0. Since I run .67s in my scale unlimited hydroplanes and they are listed as 11cc by the manufacturer, CMB Italia. Using the figures given by CMB, I can up with the following:
.67=11cc
1cc=.0609
.0609 X 15=.9136

Last edited by Hydro Junkie; 07-19-2016 at 05:26 PM.