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Need help with full keel trailer pad settings

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Initially Posted - 09/21/2008 : 10:14:19

I'm trying to set the pad heights on a full keel trailer we recently acquired as a C-25 fleet trailer. Would someone please measure their pad settings for me, using a common point such as the trailer frame, to a common point under each pad? I'm most concerned about the relationship, or differences, between the center pads and the front and rear. For example, the rear pads need to be "x" inches and the front pads "y" inches higher than the center pads.
Also, please place a board across the center pads and measure from that board down to the keel pad.
No doubt I'll need to fine tune the settings, but this would give me a very good starting point. Thanks.

DavidP
1975 C-22 SK #5459 "Shadowfax" Fleet 52
PO of 1984 C-25 SK/TR #4142 "Recess"
Percy Priest Yacht Club, Hamilton Creek Marina, Nashville, TN

Edited by - dmpilc on 09/21/2008 22:02:29

dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 10/27/2008 : 12:27:20

Still looking for more data. Please help.

Edited by - on

Merrick
Navigator

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USA
192 Posts

Response Posted - 10/28/2008 : 19:22:34

Dave - someone just did all the measurements for a wing keel about 10 topics below this one, could you add the difference in height between the two keels and make it work?

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 10/28/2008 : 22:29:13

Yes, the one titled "Boat trailer." I'm studying that one, including the measurements with pictures for the wing keel rig and the measurements supplied by Terry, new owner of FellowShip, but I'm also hoping for a few more posts here from one or two more fin keel owners with a 6-pad trailer to compare results.

Edited by - dmpilc on 10/28/2008 22:52:04

Prospector
Master Marine Consultant

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Canada
3159 Posts

Response Posted - 10/29/2008 : 08:11:55

Can it not be set up the same as a cradle? Am I missing something here?

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pastmember
Master Marine Consultant

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2402 Posts

Response Posted - 10/29/2008 : 10:15:54

since the trailer pads will need to be fine tuned anyway, and a fin keeled boats sits on the keel and only uses the pads to stabilize the load I would hoist the boat onto the trailer and adjust the pads while the boat is in the straps.

Edited by - on

Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 10/29/2008 : 10:40:23

Keel on bottom of trailer, boat level athwartships and as low in trailer as possible.

Frank is 100% correct, you should be fine tuning every time because the lift isn't going to set it down the same every time.

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 10/29/2008 : 11:46:10

No lift available unless we rent a crane. We'll be hauling out using cable/strap method, and using it for both fin keel and swing keel boats. My initial objective is to get it set as close as possible for a fin keel model, then we'll just lower the keel to the keel rest for the swingers (then see how light the tongue is

). It's a 1977ish trailer. The posts for each pad have twin bolts that tighten down on the movable portion of the post, not the screw-type posts. I've currently got the center pads set about 1" above the fixed portion of the post, i.e. just high enough where the pads can swivel freely. I figure we'll have to get in the water, float a boat on, pull out just until the keel touches the keel rest, then adjust the pads accordingly. I'd rather be too high than too low; I can always shim it with a board.

Edit: I placed a 2x4 across both middle pads and measured 38" from the bottom of the 2x4 to the keel rest. Will that be high enough for the fin keel?

Edited by - dmpilc on 10/29/2008 14:01:58

cshaw
Captain

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USA
460 Posts

Response Posted - 11/01/2008 : 10:56:41

David,

I am in the process of changing trailers for my 25 full keel as part of getting ready to move from Houston to Florida. I sold my old tandem axle and picked up a triple axle that I have to change the support configuration on.

I did take a lot of measurements from my previous trailer however, to allow me to set it up the same as the old one. I am in the process of cleaning up my measuring notes to make a sketch to use and can send you a copy if you are still needing the info....

Chuck

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 11/03/2008 : 16:06:10

Yes, please do post the sketch and notes. Email is okay too. Thanks.

Edited by - dmpilc on 11/03/2008 16:08:16

cshaw
Captain

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USA
460 Posts

Response Posted - 11/05/2008 : 21:42:50

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by dmpilc
 Yes, please do post the sketch and notes. Email is okay too. Thanks.
<hr height="1" noshade id="quote"></blockquote id="quote">
David,
I ran into a snag at work that has slowed my sketch clean up work, but will get it done in the next couple of days!!!

Chuck

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The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.