[Alberg30] 2GM versus 3GM Yanmars

[Mike Lehman]

The original A4 prop on all the Albergs I've seen is a 13x7


----- Original Message -----
From: "Michael" <dickdurk at intercom.net>
To: "Alberg 30 public list" <public-list at alberg30.org>
Sent: Monday, February 17, 2003 6:49 AM
Subject: Re: [Alberg30] 2GM versus 3GM Yanmars


> I am swinging a 12x13 wheel on my 2QM15 (I think the GM is 18 HP.)  I am
> curious what size wheels those that have the 3GM on Alberg 30's are using.
I
> think I am pretty much maxed out on wheel diameter. I've always thought
the
> rule of thumb for displacement vessels was for wheel dimensions to be
> 'squared' i.e diameter and pitch to be about the same for max. effieiency.
>
> BTW I think the original A4 wheel was 12x8.
>
> Michael
> #220
>
>
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