*Prop Size for OS 61FX*  
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*Prop Size for OS 61FX* - 3/8/2005 6:36:43 PM   
Zippi



Posts: 3092
Joined: 6/29/2004
From: Evansville, IN, USA
Status: offline 		I'm just about finished with my 72" sport pattern plane. I'ts call a "Corvette", old school from years ago. I have an OS .61FX with a Mac tuned pipe. What size props should I start out with and what brand? Wood or plastic?

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RE: *Prop Size for OS 61FX* - 3/8/2005 7:48:16 PM   
tschuy


 

Posts: 649
Joined: 7/11/2003
From: Seattle, WA, USA
Status: offline 		I have the same setup on my Bridi XLT and going with what the engine manual states 12 x 6 initially and see how she does. Hadn't flown or tested the engine yet but will post when I do. The manual states that a 12 x 6 or 12 x 7 is the recommended prop. I know from the old pattern days everyone was using a 11 x 7.5 and revving the hell out of the engines to get the power they needed. But engine porting designs are much different these days and I'm sure OS did some testing to come up with the props they recommended.

Course proof is alway in the pudding.....


Cheers,




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Tim Schuy
tschuy@comcast.net

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RE: *Prop Size for OS 61FX* - 3/8/2005 7:50:34 PM   
tschuy


 

Posts: 649
Joined: 7/11/2003
From: Seattle, WA, USA
Status: offline 		for pattern I'm going with wood props. APC's just don't have the quality and take some serious work to get balanced. Carbon fiber props are too expensive for my budget but are favored by a few of the guys.

Cheers,

< Message edited by tschuy -- 3/8/2005 7:51:02 PM >


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Tim Schuy
tschuy@comcast.net

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RE: *Prop Size for OS 61FX* - 3/9/2005 2:54:52 PM   
Zippi



Posts: 3092
Joined: 6/29/2004
From: Evansville, IN, USA
Status: offline 		Thanks tschuy, my manual shows only sport and it list 12x6-12x8, 13x6-13x7 but the paper that came with the Mac pipe says to use 11x7 unless long stroke use 12x8. It says to use a Zingali prop, I'm not sure if they even make those anymore. Must be some old pipes. I think I will start with a 12x7.


_____________________________

"It Ain''''t Lookin Good"
http://zippi.50webs.com/index.htm

(in reply to tschuy)
       Post #: 4

RE: *Prop Size for OS 61FX* - 3/9/2005 3:35:20 PM   
tschuy


 

Posts: 649
Joined: 7/11/2003
From: Seattle, WA, USA
Status: offline 		I'll go back and verify with my manual tonight and will let you know.

Cheers,




_____________________________

Tim Schuy
tschuy@comcast.net

(in reply to Zippi)
       Post #: 5

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