[C320-list] Kiwi Prop

[Chuck Mueller]

I put on a Kiwi prop a few years ago.  I found that the engine would not get
to full RPM with the prop as supplied from the factory, and gradually
decreased the pitch until I could get 3600 RPM at WOT.  The Kiwi prop gives
up a little motoring power vs. the three blade factory prop.  However, the
improved reverse and the reduced drag for sailing made it a very good
compromise.

Chuck Mueller
Northwind #676
Holland, MI


Message: 2
Date: Wed, 12 Apr 2017 16:07:57 -0400
From: Daryl Hunt <drhunt at rochester.rr.com>
To: C320-List at Catalina320.com
Subject: [C320-list] Kiwi Prop for Believe
Message-ID: <04cbe7a0-114e-a34f-962f-c65b7434e344 at rochester.rr.com>
Content-Type: text/plain; charset=utf-8; format=flowed

Based on favorable comments from this group, I've decided to order a 
Kiwi Prop feathering prop for my 1999 C320 #660 "Believe."   I have the 
Yanmar 3GM30F with Kanzaki KM2P transmission.  Here's what the Kiwi sales
rep is recommending:

    For your engine rated  27 hp @ 3600 RPM
    with reduction ratio  2.21 :1
    that will deliver 1628 shaft rpm.
    We will recommend  16" x 20?   deg Kiwiprop
    Kiwiprop diameter at tips ~ 1/2" greater than nominal.
    Required clearance to hull 1/2" (12 mm).

Does this match Kiwi prop specs that other C320 owners have installed?  
I'm also considering ordering a spare blade.  I know it's cheaper to order
them with the prop purchase.  Has any of you Kiwi Prop owners actually had
to replace a blade?  Thanks!

--
fair winds,
Daryl

Daryl Hunt
'99 C320 #660 "Believe"
Rochester, NY / Lake Ontario