MODS TO TRAILER FOR CP16

[CADMAN]

Ive replaced the rollers on my trailer with the plank arrangement shown in the pics below. I know that this has been done before, but my arrangement may be slightly different and helpfull to anybody else contemplating a similer project. I havnt tried it yet but I cant see why it shouldnt work.
The planks will obviously not be as slippery as the rollers but I think in theory the boat will leave the planks in a vertical direction rather than a horizontal direction as the boat boat gains boyancy. Hence friction should not be much of a problem.

[CADMAN]

Sorry, but Ive just found out that I cant add photos to the above post. Ive opened aan account in Photobucket but cant see how to link the photos to the particular post.

[Tim Gardner]

click here for info on how to post:

http://cpyoa.geekworkshosting.com/forum/index.php?topic=3763.0

TG

[Pacman]

A plank is much kinder to the boat than rollers.

A wet plank is more slippery than most rollers.

Tip: Wet the keel plank before launch/retrieval

[skip1930]

Pacman; " A plank is much kinder to the boat than rollers. "

Hummm why? I just float the boat into the Vee block, winch her down, and allow the driveway markers on the back of the trailer to center the hull and out she comes. Nothing 'slides' on rollers or a plank, if I had a plank.

On the hard at home it is possible to pick the entire boat clean off the trailer with a 24" long 2 x 4 on top of a five ton floor jack. Just find the balance point, something you can't do if a plank is in the way.

skip.

[CADMAN]

Skip,Pacman,
I am working on the theory that my CP16 'Raven' will not need to slide on the plank but will in practice float off vertically, probably more of a peeling motion, as the stern gains bouyancy. I'm sure the slope of the ramp will also affect wether the boat slides or peels. I'm not speaking from experiance because I havnt used the trailer with its current plank configuration so I've got my fingers crossed for the first launch next March.

[MKBLK]

"On the hard at home it is possible to pick the entire boat clean off the trailer with a 24" long 2 x 4 on top of a five ton floor jack. Just find the balance point, something you can't do if a plank is in the way."

Skip - I'm planning on painting the bottom of Pegasus and was wondering if this is a good way to do it. After finding the balance point (just forward of the axle?) can I support the boat via four secured 2x6's? Since my CP16 weighs about 1200 lbs., I would think a 2,000 lb. capacity jack would be adequate. You think?

Marty K.

[Salty19]

Cadman,  I think your mods will be fine.  Enjoy sailing her, she's a fine vessel.

In photobucket, just open the pic, click on the image code (in a box off to the right), it should auto copy, then paste into a post.   It's super easy.

Curious if you see many Com-pacs in the UK...we sure would love to see your boat!!!

[skip1930]

Marty asks, " I'm planning on painting the bottom of Pegasus and was wondering if this is a good way to do it. After finding the balance point (just forward of the axle?) can I support the boat via four secured 2x6's? Since my CP16 weighs about 1200 lbs., I would think a 2,000 lb. capacity jack would be adequate. You think? "

You know there was a picture of a guy standing next to his CP-16 and the CP-16 was standing on her keel upright on the grass. No other support at all. I think the picture was in the Yahoo Com-Pac sight.

Well you can lift, and slide 4~2 x 6's across under the keel, that's only 300 lb per board or jack her up on 1~2 x 4.
What was not talked about is the need to raise the hull bunks up under the now raised hull for stability.

Before you go and get into trouble, DO NOT jack anything untill the trailer is blocked up so we don't have to worry about any rubber tires tilting with the load. The trailer has to be solid. Since my road is crowned, I used a level both port and staboard and fwd and back.

When I raised my CP-19 off the trailer I started by jacking each hull bunk up a few inches at a time and continued around the trailer till all were up.  
The keel was 'floating' above the trailer rollers.

The other time I raised the boat with the trailer rubber off the road, I jacked at the balance point under the keel to move the axle astern for more tounge weight. And of course move the trailer jack, and winch on the trailer back a bit. Then lowered the hull bunks and then the boat till the keel sat on it's three rollers, then ran lines from the stern cleats to the trailer. Then rejacked the hull bunks up under the curves of the hull for a fine fit. Took off the stern lines.

skip.