TomCat Boat Lift Configuration

B

boodalu

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Jul 24, 2007
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C Dory Year
2007
C Dory Model
255 Tomcat
Hull Identification Number
CD025563I607
Vessel Name
BOODALU
I am soon to get my new TomCat into the water. I had a lift installed in my slip but want to make sure my boat will fit on it. The bunks on the lift sit on two large plastic tanks with a frame and are 29 inches high and 45 inches accross the top. I need to check length but it looks at least 15 feet or more. I would attach a picture but don't know how (such a newbie). Supposedly the lift maker checked it our; however .. . . .
Thanks in advance.
BOODALU
 
Boodalu-

I can't give you dimensions for your Tomcat 255, but I can tell you that I've seen numerous Hydrohoists (common brand out here in California) set up for pontoon boats which are fairly similar in their hull shape demands to your Tomcat.

Above each of the air tanks there are two bunks that form a "V" for the round pontoons to rest on. I believe the Tomcat will require a similar arrangement, perhaps with some adjustmenmt of the individual bunks to accomodate the particular shape of the catamaran hulls.

If you find that centering the hull over the "V" bunks to be a problem when inflating the tanks and raising the boat, side-rail/guide-ons can be added to the Hydrohoist structure.

What you really need to do is to get ahold of the folks who installed your lift and have them finish the installation by fitting the lift to your boat. They're the experts, and fitting the lift to your boat should be part of the installation!

Joe.

liftf09.jpg
 
15 feet should be long enough. You want the bunks spaced about 5' 4" center to center (This is from my trailer). You will also want a tunnel bunk or outside guide rails--which will allow you to center the baot. The tunnel bunks are about 32" wide, centered on the trailer. This will allow the boat to be centered on the lift bunks. Best to have a minumal "V"--basically flat, maybe 10 degrees max, of two 2 x 8"s--true dimensional lumber and be sure that the transom is supported--but the lift does not need to be aft of the transom. (not as far back as the bracket).
 
I hope that the installers were informed of the total weight on a loaded TomCat. I had an estimate for a lift which tripled once the weight of the boat was taken into consideration.

I'd be amazed that someone would charge for installing a boat lift without making it fit your boat, unless you arranged for a do-it-yourself discount.

John
 
Factory set me straight. Lift installer will se it correctly

 
"I met with our engineer after reading his email below.
The bunks can be 30" wide and can run 226" long from the transom.
The tunnel is 31 ½" wide at the transom.
The 226" is the length of the tunnel from the transom that is level.  The remaining distance (79") tapers up toward the bow.
The bunks can be level for 226" so the TomCat sits level on the lift.
These are approximate numbers therefore make sure you actually measure and make adjustments according to your measurements"

PS the bunks should at least be 18"+ high. .
 
 
I also recieved this information from BOODALU. As I read this, they are planning on supporting the Tom Cat on the bridge deck. My personal feeling is that this is a very bad idea, unless it was run by the engineering (?) dept at C Dory. I believe that the boat should be supported under the hulls.

The bridge deck is not designed to take the load of the loaded boat as a support. The bottom of the hulls, are designed to support the weight on a trailer.
 
I confirmed with C-dory engineering the boat CAN be supported by the "top" of the tunnel by the lift bunks. I am going to do it and will let you know what problems, if any occur. Wish me luck.
BOODALU
 
I assume that is a money back guarantee? Goodluck--I would be sure and have some padding on lateral bunks, because of the curve at the edge of the tunnel--you want to be square on the very center. It would be most interesting to see what the laminate schedule is at this center bridge deck.
 
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