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Author Topic: Pull to port  (Read 510 times)
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arobart
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« on: June 17, 2003, 11:11:09 PM »

We finally got Ten Times our new (to us) C-34 off the dock if only to go for a pump-out.  While motoring at 7 knots there was a fairly strong pull to port on the wheel, letting go of the wheel resulted in a pretty quick turn.  The hull, keel and rudder were closely inspected prior to launch and seemed OK.  The steering moves freely and the cables are tight.  Any suggestions.
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Stu Jackson
C34IA - Secretary
Forum - Master Chief Petty Officer of the Navy
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Boat Name / Hull Number: Aquavite #224 1986 SR/FK, M25, NZ Rocna 10 (22#)
Home Port: Alameda, CA
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« Reply #1 on: June 18, 2003, 01:22:02 AM »

PROP WALK
 
 Arnold,
 
 Welcome, and congratulations on your new C34.
 
 You may want to consider reviewing the following reference:
 
 http://archive.sailboatowners.com/archive/archresults.tpl?ssite=CO&fno=20&start=1&keyword=prop+walk&model=none&forum=none&pr=p%2Cr&_ptitle=ptitle+rtitle&andor=ws&srt=pdate
 
 If you read them all you'll understand.  If you reasd the first few, you'll know enough.
 
 It always happens.  You DO NOT have a problem.
 
 The "pull" is beccause of the turning of the prop.
 
 Most folks coming from tiller boats don't have that issue, because they've had outboards, which they can offset to balance the helm.  
 
 Lots to learn, but you've come to the right place.
 
 The powerful and useful C34 website search engines (separate ones for the message board and the website) are valuable tools for you to use.
 
 Try searching for "prop walk" on those, too.
 
 Have a great sailing season.
 
 Stu
 
 [This message was edited by Stu Jackson #224 1986 "Aquavite" on June 17, 2003 at 10:32 PM.]
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Stu Jackson, C34 IA Secretary, #224 1986, "Aquavite"  San Francisco Bay, SR/FK, M25, Rocna 10 (22#) (NZ model)

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Ken Juul
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« Reply #2 on: June 18, 2003, 07:49:57 AM »

To lessen the effect try putting some friction on the wheel, black knob normally found on the right side of the pedestal under the throttle
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Ken & Vicki Juul
Luna Loca #1090
Chesapeake Bay
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Jim Price
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« Reply #3 on: June 18, 2003, 09:37:11 AM »

A three-blade prop also reduces forward prop walk considerably and helps give much better reverse control.  Negative is more drag under sail but your PHRF gives you credit for the fixed 3-blade so it all nets out. Sort of ....  I can motor all day at any speed and have very little risistance on wheel.  BUT if you let it (or any wheel) alone, expect never ending circles!
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Jim Price
"LADY DI", 1119
1991
Lake Lanier, GA
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