[alberg30] three-blade prop for A-4 equipped A30

[John Allen]

From: "John Allen" <gallen at vcn.bc.ca>

I agree -- two blades, shaft marked with white paint, gearbox engaged.  I
changed to a 13 X 6 in '98 from a 13 X 7 only because it came as a spare
with the boat.

I feel this combination gives me a bit more speed and a happier engine --
but not that much.

Skybird #522
----- Original Message -----
From: <Rap1208 at aol.com>
To: <alberg30 at onelist.com>
Sent: Friday, January 14, 2000 9:07 PM
Subject: Re: [alberg30] three-blade prop for A-4 equipped A30


> From: Rap1208 at aol.com
>
> The Blanks
>  For what it's worth, Ca Va came with a 12" x 6" 3 blade.  I felt there
was a
> lot of drag under sail.  You are always draging at least two blades out in
> the water.  Only one can be hidden behind the deadwood, as if you can
easily
> tell.  I Put on a 13" 7" teo blade, and am happy with it.  I get apros 6-6
> 1/4 knot at at  14hundred to 1450 rpm. The engine runs cool. I have some
> engine rpm in reserve.   I have no dificulty getting northbound under the
> Blue Water bridge at Sarnia, where the current is about 6 knots.   If you
> install a 2 blade hide it behind the keel, and mark the shaft inside, so
you
> can tell.
> Russ Pfeiffer
>
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