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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> RCV Engines Support >> New Graupner 3 blade props
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New Graupner 3 blade props - 5/12/2009 10:25 PM   
PeterF



Posts: 26
Score: 100
Joined: 1/7/2004
Last Login: 4/13/2013
From: Middlesbrough, UNITED KINGDOM
Status: offline 		Graupner have got some new 3 blade props that I have only recently found. See

Graupner props

with some handy sizes such as 16" x 10" (40cm x 25cm), 16" x 12" (40cm x 30cm) and 18" x 12" (45cm x 30cm).

They also have some even larger carbon props at higher prices.

I was wondering if anybody has tried any of these as they would seem to be ideal for the SP range of engines, or if RCV would test them to check rpm ranges etc as it would be good if the range of recommended props could be increased. APC seem to be reducing the range of their mutli bladed props at the moment.

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RE: New Graupner 3 blade props - 6/16/2009 3:06 PM   
rccen44


 

Posts: 6
Score: 100
Joined: 5/19/2003
Last Login: 5/8/2013
From: Pickens, SC, USA
Status: offline 		I am running one of the 18 X 12 3 blades on my RCV 120. It is on a Hanger 9 Corsair. I have not put a tach on it, but it seems to fly just as fast or faster that the APC 15.5 X 12 4 blade that I was running. Engine seams very happy and runs cool. I am using Cool Power 15% MV fuel. The change to this fuel from Omega fuel, is the one thing that has made more differrence than anything else I have done to this engine. It turns much more freely and runs cooler. We put a temp gauge on the engine last week after I landed it and the highest reading that we could get from anywhere on the engine was 210 degrees.










< Message edited by rccen44 -- 6/18/2009 8:39 PM >

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RE: New Graupner 3 blade props - 6/17/2009 7:46 PM   
mike early



Posts: 2077
Score: 125
Joined: 10/28/2007
Last Login: 5/15/2013
From: Ashland, KY, USA
Status: offline 		where can these be had in the USA?

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RE: New Graupner 3 blade props - 6/17/2009 9:07 PM   
rccen44


 

Posts: 6
Score: 100
Joined: 5/19/2003
Last Login: 5/8/2013
From: Pickens, SC, USA
Status: offline 		My prop was ordered from Hobby Lobby.

http://www.hobby-lobby.com/g-sonic_3_blade_prop_18x12_18516_prd1.htm

I removed the printing from the prop, put yellow tips and fake Hamilton Standard stickers on it. It sure looks good on a low pass.

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RE: New Graupner 3 blade props - 4/9/2012 6:51 PM   
Hckyfntck


 

Posts: 6
Score: 100
Joined: 2/2/2011
Last Login: 5/12/2013
From: Sebring, FL, USA
Status: offline 		Wow, thats a LOT of engine for a Hangar 9, it should scream through the air!

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