[Alberg30] Small Engines

[T. Kevin Blanc]

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A 13" prop, while one of the common diameters for an
A30, is big for the aperture. It will cavitate at
higher RPMs. Also, two-bladers vibrate significantly
more than three-bladers, I've been told.

Another sailor-specific prop source you can find on
the web is the Campbell Sailor propeller (I might be
spelling Campbell wrong). I believe their sight is
www.westbynorth.com. Obviously, they are selling
propellers, but they might give you some thoughts on
what the most appropriate screw is.

--- TS7007 at aol.com wrote:
>  
>
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>   | This is it!  Monday October 31 is the last day.
> Quick, right now! |
>   | Go to
>
http://www.myaffiliateprogram.com/u/sailnet/t.asp?id=1066
>   |
>   | and use the e-coupon code APMK18 for your
> discount.               |
>  
>
+-------------------------------------------------------------------+
> I would agree that it should have been perhaps a
> 13x8, Michigan Prop did the 
> math for me and sold me the prop, they still
> maintain that it is the correct 
> prop. 1" of pitch represents about 150 rpm. The
> engine will turn up higher 
> than 2100 in flat water but past that the noise and
> vibation become obvious. 
> Tom S.
> Mandolaire
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