[Alberg30] Props

[Mike Lehman]

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


_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp.

 +-------------------------------------------------------------------+
 |  Foul weather?  Deep discounts on Henri Lloyd and 2001 Gill gear. |
 | *** http://www.myaffiliateprogram.com/u/sailnet/t.asp?id=1066 *** |
 +-------------------------------------------------------------------+


_______________________________________________
Public-list mailing list -- Public-list at alberg30.org
http://www.alberg30.org/mailman/listinfo/public-list
To unsubscribe: email to Public-list-request at alberg30.org
Include command "unsubscribe <password>" in subject or body.
Use command "help" for more options.

 1012749447.0