140 FZ Prop Size

[Randy]

I ran a 16x10 OR 16x11 WITH MY 140fz.  It seem to like a few more RPMS.
Randy
----- Original Message ----- 
From: "Dean Pappas" <d.pappas at kodeos.com>
To: <discussion at nsrca.org>
Sent: Sunday, February 13, 2005 1:50 PM
Subject: RE: 140 FZ Prop Size


> Hi Lem,
> The FZ neede to be propped at at least 7800 RPM on the ground to run 
> properly. At this ground RPM, it was just a little tricky to needle, as 
> the engine wasn't really on the cam yet.
> Props that ran there were the full bladed APC 15 X 13, or 16 X 11. A 16 X 
> 12 would work well, but only with plenty of nitro and a careful needle 
> setting learning curve. I used the 16 X 11, with a 12 in cold weather to 
> keep under my home field's noise limit.
>
> 15 X 12, 15-1/2  X-12s were also good, though they could get buzzy in the 
> air. These turened in the low and mid 8's and because the engine was in 
> the sweet spot, they handled more easily.
>
> The FZ may just have been the best version of the YS, the power was 
> substantially better than the AC, but the table manners were almost 
> perfect. The AC did have perfect table manners!
>
> Regards,
> Dean
>
>
> -----Original Message----- 
> From: discussion-request at nsrca.org on behalf of Lem Stevens
> Sent: Sat 2/12/2005 9:04 PM
> To: discussion at nsrca.org
> Cc:
> Subject: 140 FZ Prop Size
>
>
>
> What is a reasonable prop for a YS 140 FZ?  I have it on a 2M NOVA.
>
> 


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