[Alberg30] Props

[David Swanson]

Actually, the boat is attempting to back northwest & return to its birthplace in
Ontario.  That's my story & I'm sticking to it.

David Swanson
Strayaway Child
Alberg 30 #229

Mike Lehman wrote:

> I think it is the magnetic pull of the earth.
>
> ----Original Message Follows----
> From: Brian and Elaine Timmins <timmins at optonline.net>
> Reply-To: public-list at alberg30.org
> To: public-list at alberg30.org
> Subject: Re: [Alberg30] Props
> Date: Sat, 02 Feb 2002 07:12:49 -0500
>
>    OK, so explain to me. When my slip was on the south side of the east-west
> pier, with a predominant southwest to west wind, and I reverse out to the
> south,the stern would always go to port. Last season, I moved to the north
> side of that same east-west pier, still predominant southwest to west wind,
> and now when I reverse out to the north, the stern always goes to starbord.
> Same boat, same engine, same prop, same procedures, same operator, same
> predominant wind, different direction, different result. (Protected marina,
> no real current to contend with)
>     It appears obvious to me that the direction the boat backs to has more
> factors controlling it than just prop rotation direction induced prop walk.
> Regards,
> Brian   #497
>    ----- Original Message -----
>    From: James Davis
>    To: Alberg30 General List
>    Sent: Friday, February 01, 2002 9:34 PM
>    Subject: [Alberg30] Props
>
>    Don't blame the prop walk on two blades.  The increased prop walk is more
> from being able to spin it faster.  Those that have converted to diesels and
> get even more RPM on the prop in reverse get some very usable prop walk.  In
> fact the prop walk effect is probably the best way to steer when backing.
> Assuming your boat backs to port (this can be different with a diesel) keep
> the tiller hard over for a right turn and by backing and filling, you can do
> a 360 in little more than the boats length.  Back - the stern goes to port.
> Give it a goose ahead - the prop wash against the rudder nudges the bow to
> the right.  As soon as she starts going ahead, back hard for a few seconds -
> the stern jumps to port.  Keep it up and it is easy to turn around.   Note
> that this can be slow with the Atomic 4 and the original prop.
>    Jim Davis
>    Isa Lei
>    A30 240
>
> Mike Lehman
> "Gilleleje" #505
> (410) 544-9067
>
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