[SPAM] Re: [SPAM] Re: Spinner poll

[DaveL322 at comcast.net]

Bill,

Nothing scientific or deliberate enough to quantify a result/change in efficiency.

The flywheel effect - that is not too difficult to notice on smaller engines (at idle) when running with / without spinners.

Dave

-------------- Original message -------------- 
Dave:
Out of curiosity, (I know you ae a tireless experimenter) have you ever seen anything qualitative that you could pin on spinner size?  You are, of course, exactly correct with your statement below.  Also, there might ba a small flywheel effect which would increase with spinner weight, but I sure would hate to call it anything but theoretical
Bill Glaze.

DaveL322 at comcast.net wrote: 
The hub area of a prop is typically pretty inefficient (it is difficult to get enough pitch in the prop) so the large spinner helps streamline the center of the prop and reduce drag.

Dave

-------------- Original message -------------- 

> Other than appearance, is there any advantage of a big spinner over a 
> smaller one? 
> 
> John Ferrell 
> http://DixieNC.US 
> 
> ----- Original Message ----- 
> From: "Dean Pappas" 
> To: 
> Sent: Sunday, March 13, 2005 5:25 PM 
> Subject: RE: Spinner poll 
> 
> 
> > Hi Jason, 
> > I drew the new ship at 3-3/8 and wished I'd gone up to 3-1/2. 
> > At least then I could have used a heavy plastic CB products spinner! 
> > Let me guess, you are making recommendations for an updated airplane? 
> > As I look at E-power, I am contemplating a flow thru spinner, rather than 
> > an annular opening, a la the old Cutlass Supreme. 
> > 
> > Later, 
&g! t; > Dean 
> 
> 
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