Cruisers Forum

Join CruisersForum Today

Thread Tools Search this Thread Rate Thread Display Modes
Old 05-06-2016, 08:56   #1
Registered User

Join Date: Apr 2011
Location: Indiana
Boat: Coronado 26, Dragonfly, Precision 23
Posts: 10
Precision 23 centerboard woes

I race a Precision 23 "Logos" in club racing. I've had some abnormalities involving the centerboard.

First, at high speed (hull or above perhaps) began recently a vibration and sound like a bass string hum. Maybe it just hadn't gone that fast before, but vibration can't be good for speed.

Some time later, last Wednesday, racing in very light wind, the centerboard stuck in the down position, making a "thunk" sound as it reached bottom. Not dropped, but lowered briskly. A helper got it loose by pulling harder than I dared on the pennant, but it continues to get stuck at the full down position. ("So don't put it all the way down dummy") doesn't work for me.

I suspect it might not be straight anymore. I do have the schematic of the installed CB, the hangar with lateral pin and the pennant, when attached and down.

The Hangar is fastened with a stainless steel hangar in, and the board retracts into the keel and bolts through the sole of the cabin, with two decorative bolt head covers on the floor.

So it makes sense to me to try and tighten the hangar bolt nuts in the cabin where i can easily access them. But how much? (The boat's in the water, and board can't be extended on its low trailer.) I don't have a local place to hoist it.

Before me just ignorantly starting to try things, with some luck one or more of you will know exactly what is likely wrong and the best way to correct it.

See what confidence I have in this bunch of sailors?

Thank you in advance for any advice, expertise, ideas, suggestion.

Landlocked Indiana
cptmclark is offline   Reply With Quote
Old 05-06-2016, 09:30   #2

Join Date: Jun 2010
Location: Easton, MD
Boat: Catalina 22 Capri, 15' Catboat, Bristol 35.5
Posts: 2,293
Re: Precision 23 centerboard woes

I think that's normal. My Capri 22 with a fin keel does the same thing surfing down waves above hull speed. The bottom line is it wasn't designed for those speeds. I have seen over 12kts in the Capri, twice hull speed.
kmacdonald is offline   Reply With Quote
Old 05-06-2016, 12:26   #3
roverhi's Avatar

Join Date: Aug 2005
Location: Kona, Hawaii, Carlsbad, CA
Boat: 1969 Pearson 35 #108 & 1976 Sabre 28
Posts: 6,625
Send a message via Yahoo to roverhi
Re: Precision 23 centerboard woes

The vibration at high speeds could be the pennant. Know my Dyneema topping lift likes to 'sing' in winds over 10k. All you can do for the sticking when down is jump in the water and watch what happens when the board bottoms out with someone on board letting it down. Could be anything from marine growth in the trunk to a snagged wire in the pennant.
Peter O.
'Ae'a, Pearson 35
'Ms American Pie', Sabre 28 Mark II
roverhi is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Merriman centerboard winch will raise but not lower centerboard - stuck in la paz autumnbreeze27 Construction, Maintenance & Refit 58 30-11-2015 20:20
For Sale: Precision Temp Showermate M-550S Hot Water Heater JRMarine Classifieds Archive 1 13-07-2013 08:00
Tracking Precision Bluesipp OpenCPN 10 07-03-2013 19:06
Precision 14 rattleshirt Monohull Sailboats 4 23-04-2011 12:49
Any info on 2000 Precision 28' Rick S Monohull Sailboats 0 21-02-2005 02:47

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:41.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.