[Public-list] Props for diesels

[faerthen felix]

Hi all,

I'm unclear on the potential gearing differences between the Atomic 4's & the small Yanmar diesels that are often used to replace them. Does the same prop advice apply to both? Can (or should) I use the Indigo 3-blade prop with my 2GM20? I, too am somewhat unimpressed by our current 2 blade prop :(

Thanks for such a great, informative forum!

FF
Nisus
#267

----- Original Message -----

> Date: Sat, 4 Sep 2004 06:55:44 -0400
> From: " John Brugeman" <johnbrugeman at ameritech.net>
> Subject: Re: [Public-list] Re: 2 or 3 bladed prop
> 
> Michael,
> 
> I put a 3 bladed prop on my 68 Alberg 2 years ago; the one made by Indigo
> Electronics Inc. out of VA,  and it made a world of difference for several
> reasons.  Backing out of a berth has been made much easier.  I still have
> some prop walk but not near as much as with the old two blade prop.  Pulling
> into a berth has been much easier since she will stop much quicker.  I
> haven't banged the bow against the dock yet.  Also when motoring I can move
> at around 5 or 51/2 kts sometimes 6 at about 1900-20000 rpms.  You can also
> motor at greater rpms with less torch on the shaft and prop. It's much
> easier on the old engine.
> 
> John Brugeman
> Mermaid #305
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