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Constant Speed

 
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bo124rs(at)hotmail.com
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PostPosted: Thu Jan 05, 2006 6:54 am    Post subject: Constant Speed Reply with quote


Anyone got any personnal choices for good C/S props for an O 360A1A? As you
can see, I've sold the rotary and am planning on putting a new 360 hollow
crank. The idea right now is to go fixed with the option of going C/S or
going hollow and just dropping the bucks and going C/S.
Gotta put some numbers together. Time to fly this think!!!!
Dana Overall
Richmond, KY i39
RV-7 slider, Imron black, "Black Magic"
Finish kit


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DOUGPFLYRV(at)aol.com
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PostPosted: Thu Jan 05, 2006 6:58 am    Post subject: Constant Speed Reply with quote


Dana, I am running that very engine by Aerosport with Hartzell "BLENDED
AIRFOIL" prop and have no complaints.
Doug Preston
RV-7
N731RV


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martin(at)gbonline.com
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PostPosted: Thu Jan 05, 2006 7:51 pm    Post subject: Constant Speed Reply with quote


Dana,
I have both a Hartzell CS and an AeroComposites CS. The Hartzell yields 200
to 300 fpm more rate of climb, but is considerable slower in cruise. The
ACI is slightly less climb and 10 to 15 mph faster in cruise. The ACI prop
is also approx 15 lbs lighter than the Hartzell. Since I have an extended
hub set up with a NACA cowl, plenum set up, the ACI being lighter improves
the CG .and of course the speed increase is always welcome.
Average rate of climb with my IO390 engine is between 2000 and 3000 ft per
minute depending on temperature and load with the ACI prop. The only down
point with the ACI is that it costs more than the Hartzell, but I think that
it is worth the investment.
Dick Martin
RV8
N233M
the fast one


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groves(at)epix.net
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PostPosted: Thu Jan 05, 2006 8:08 pm    Post subject: Constant Speed Reply with quote


Just curious Mr Martin did you have the the Hartzell on the IO-390 or just the AC.
Thanks
Kirk
Quote:

From: "dick martin" <martin(at)gbonline.com>
Date: 2006/01/05 Thu PM 10:51:31 EST
To: <rv-list(at)matronics.com>
Subject: Re: RV-List: Constant Speed

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martin(at)gbonline.com
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PostPosted: Sun Jan 08, 2006 6:10 pm    Post subject: Constant Speed Reply with quote


Dana,
I put approximately 300 hours on the IO360 before converting to the IO390.
The IO390 added approximately 5% in all parameters.
Dick Martin
RV8 N233M
the fast one


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