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Craymondw(at)aol.com
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Posted: Mon Jul 16, 2007 8:24 am Post subject: Props

EAA adviser, Joe Gauthier N2622(at)aol.com (N2622(at)aol.com)   reported  a 10 knot speed difference between props of Venture  Aircraft.

    A friend and I flew our Glasair 2's FT with 200 HP engines  side by side and he pulls away with his McCauley prop. I average 210 MPH and he  claims 220 mph. For further information, his name is Monte McClaine and he  owns a KR, a Glasair 2 FT and a Glasair 111. He further humiliated me when we  were flying side by side and reported he was pulling 19 inches to my 22 inches.  When he aplied 22 inches he pulled right away from me. His address is Montemac(at)cox ([email]Montemac(at)cox[/email]). net. My Glasair is the 2S and is  wider than the Glasair 2. Monte also uses an engine  plenum and the  combination of the two may account for the 10MPH speed difference.

     Two other builders up on speed mods are Ken Johnson and  Charlie Gray.



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AHPlowman(at)varicore.com
Guest

Posted: Tue Jul 17, 2007 6:55 am Post subject: Props

Gentlemen,

  

 I am somewhat new to the list.  I have  a Glasair Super II S, FT with 180hp and the 68" Hartzell paddle blade CS  prop.  The best cruise I can get is about 175 mph and it doesn't seem to  matter if I run at 75% or flat out, the speed doesn't improve much.

  

 Have you ever heard of a 2-S FT that was  that slow?  Is it all in the prop? It has the factory pants and I can see  gaps around the brake covers, etc but can it make that much  difference?

  

 Arnie  Plowman 68DJ

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Craymondw(at)aol.com
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Posted: Tue Jul 17, 2007 7:18 am Post subject: Props

Glasair 2S FT that cruises (at) 175 mph. First I have to ask at what altitude.  If you only get 175 mph at 8,000 feet, then something is wrong. First I would  check to see if a twist was built into the wing. I would check wing angle  of attack, check to see if your flaps are reflexed a few degrees, any flap drag  will slow you way down, I would slightly reflex the alerons and if the wings  appear unstable lower the flaps to a point where the plane is stable.   Seal any gaps between control surfaces and any air that bleeds out of the  flap wells, check engine off set, your induction and cooling inlets may be  too large for that size engine, check to see if the main wheel pants are  parallel to the centerline of the fuselage because you could have a built in  wheel pant yaw that needs to be off set by the rudder and that will slow you way  down.  



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s_korney(at)hotmail.com
Guest

Posted: Tue Jul 17, 2007 8:39 am Post subject: Props

Craymond...



I have a Glasair 1 retractable.... IO-320 hopped up.... Constant speed 

Hartzell 72" prop... What top speed should I expect... WOT, 2700 rpm's, sea 

level, standard day...?

Best... Steve





----Original Message Follows----

From: Craymondw(at)aol.com

Reply-To: glasair-list(at)matronics.com

To: glasair-list(at)matronics.com

Subject: Props

Date: Mon, 16 Jul 2007 12:22:27 EDT



EAA adviser, Joe Gauthier _N2622(at)aol.com_ (mailto:N2622(at)aol.com)   reported

a 10 knot speed difference between props of Venture  Aircraft.

    A friend and I flew our Glasair 2's FT with 200 HP engines  side by side

and he pulls away with his McCauley prop. I average 210 MPH and he  claims 

220

mph. For further information, his name is Monte McClaine and he  owns a KR, 

a

Glasair 2 FT and a Glasair 111. He further humiliated me when we  were 

flying

side by side and reported he was pulling 19 inches to my 22 inches.  When he

aplied 22 inches he pulled right away from me. His address is _Montemac(at)cox_

(mailto:Montemac(at)cox) . net. My Glasair is the 2S and is  wider than the 

Glasair

2. Monte also uses an engine  plenum and the  combination of the two may

account for the 10MPH speed difference.

     Two other builders up on speed mods are Ken Johnson and  Charlie Gray.



************************************** Get a sneak peak of the all-new AOL 

at

http://discover.aol.com/memed/aolcom30tour



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http://newlivehotmail.com

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Craymondw(at)aol.com
Guest

Posted: Tue Jul 17, 2007 12:08 pm Post subject: Props

Steve,

       I have had no experience what speed you  should have with that configuration. 



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icovey(at)nc.rr.com
Guest

Posted: Tue Jul 17, 2007 2:44 pm Post subject: Props

What engine and propeller do you have on your  Glasair?

   [quote][b]

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Craymondw(at)aol.com
Guest

Posted: Wed Jul 18, 2007 6:55 am Post subject: Props

icovery,

         IO360 200 hp Lyc and  Hartzell



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icovey(at)nc.rr.com
Guest

Posted: Thu Jul 19, 2007 1:14 am Post subject: Props

Which Hartzell?  The newer "blended  airfoil?"  The model recommended by Glasair?  Other?

  

 With respect to the G-III: Stoddard-Hamilton  published a report of a comparison test of the recommended McCauley and  Hartzell propellers.  It was in the old factory newsletter.  As I  recall, there wasn't much difference in overallperformance.  Better  propellers are available today.  Anyone have experience with the new  composite props?

  

 Thanks,

  

  

 BJC

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