[Rhodes22-list] Oil canning on the trailer

[Robert Quinn]

Very nice work.


----- Original Message ----- 
From: "Peter Thorn" <pthorn at nc.rr.com>
To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
Sent: Wednesday, June 08, 2005 7:24 PM
Subject: Re: [Rhodes22-list] Oil canning on the trailer


> Joseph,
>
> I replaced the 10' non pressure treated larch bunks on my 2003 Triad with
> 12' kiln dried Pressure Treated Southern Yellow Pine #1 grade lumber (no
> knots).  As far as softwoods go, this is a very strong material and has a
> very high fiber stress rating.  Although it is flexible, under a load it
> deflects less,  so it more evenly distributes the boat's weight across the
> bunks instead of point loading in the corners, like a lesser wood might 
> tend
> to do.  At Stan's suggestion, I cantilevered the bunks 1' at each corner.
> Haven't had even the hint of oil-canning.
>
> The plastic covers are Tie-Down Engineer's bunk guides.  Two kits did the
> bunks and inner keel guides.  These just make the boat more "slippery" on
> the trailer, so I can crank it slowly forward in the parking lot to
> precisely load the tongue weight up to around 400#.  After reading Rik's
> website and some of his writings, I also changed to a two-speed winch for
> the same purpose.  It all works together beautifully!
>
> It you decide to go to all this trouble, you might also want to replace 
> the
> trailer bunk bolts with stainless.  This extra expense insures you won't
> have to do it again for a very long time.
>
> Good luck.
>
> PT
> Raven
> Chapel Hill, NC
>
>
>
> ----- Original Message ----- 
> From: "J Cook" <joscook at msn.com>
> To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
> Sent: Wednesday, June 08, 2005 4:35 PM
> Subject: [Rhodes22-list] Oil canning on the trailer
>
>
> We just pulled our boat for a little paint-up, fix-up, clean-up time.
>
> I remember seeing a post, a while back, trouble-shooting oil-canning when
> the boat is on the trailer. ( Hope I got that definition right.  Where the
> forward ends of the bunks press against the hull, I am finding a bit of
> impression on both sides.)
>
> Before putting her on the trailer this time, I moved the winch bracket
> forward about 2 inches. I also put a drop hitch in the reciever), and the
> bunks were significantly less angled on the ramp than before..
>
> We ratcheted the boat up snug, pulled up the ramp, re-snugged, backed down
> again, re-snugged again and repeated a couple of timed until her bow was
> well rested against the Y.  But I'm still getting a bit of inward bound to
> the hull.
>
> The boat's weight is bearing on the two 128" bunks and one roller at the 
> aft
> end of the keel.  No weight is on the two runners, which I assume serve 
> only
> to guid the boat onto the trailer.  There is no front roller on the
> Trailmaster trailer.
>
> Any ideas for an easy fix?  I don't recall if anybody has tried 
> lengthening
> the bunks to 12 feet or instaled a front roller.  I guess those maight be
> options.
>
> Hopefully, she's going back in the water soon, so I can get another shot 
> at
> adjusting the trailer.
>
> Thanks
>
> Joseph Cook
> __________________________________________________
> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>


--------------------------------------------------------------------------------


> Name: P3100041.JPG Type: image/jpeg Size: 949374 bytes Desc: not available
> Url: 
> http://www.rhodes22.org/pipermail/rhodes22-list/attch/200506/08/P3100041.jpg
>


--------------------------------------------------------------------------------


> __________________________________________________
> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list