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  1. #1
    12timeworldchamps's Avatar
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    Triton WC2-2: how to add a third bunk set?

    Is it possible to add a third set of bunks up front sideways and put a stand up ski on the Triton WC2-2?

    I can't find any pics or threads addressing this as a possibility?

    Eddie

    Last edited by K447; 03-21-2015 at 02:30 PM. Reason: Thread title

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    12timeworldchamps's Avatar
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    bump

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    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by 12timeworldchamps View Post
    Is it possible to add a third set of bunks up front sideways and put a stand up ski on the Triton WC2-2?

    I can't find any pics or threads addressing this as a possibility?

    Eddie

    I have toyed with the idea of cantilevering a sideways bunk set behind the main trailer frame. The main winch towers and hulls would need to shift forward to minimize rear overhang and maintain tongue weight.

    The Triton dual axle frame seems to have more beef than the single axle version. Max weight limit is much higher (when configured with trailer brakes) so the frame itself must be stronger to have the rating.

    That would allow enough room for extension arms extending back from under (or beside) the main trailer frame rails.

    Sideways bunks would need to be just barely lower to not snag the sit down hulls when they launch. Since the trailer is at an angle on the launch ramp the rear of the hulls should float over the cross bunks if you get it configured just so.

    Back down the ramp, float off the stand-up watercraft. Back farther down the ramp, float off the big machines.

  4. #4
    12timeworldchamps's Avatar
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    Thanks for your thoughts. My dealer and i were thinking of putting bunks up front. Instead of the diamond plate storage box and gas can racks, put a super-jet on bunks there. I hope this works!

    Eddie

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    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by 12timeworldchamps View Post
    Thanks for your thoughts. My dealer and i were thinking of putting bunks up front. Instead of the diamond plate storage box and gas can racks, put a super-jet on bunks there. I hope this works!

    Eddie
    Adding bunks across the front of the trailer is certainly the common approach.

    Think about how far you will need to back the trailer down the launch ramp to float the superjet off. If you are not going to float it off then you are going to be carrying it, or muscling it around somehow onto the main bunks.

    Many launch ramps are limited in how far the ramp extends under the water, so there may be issues with dropping the trailer wheels off the deep end of the ramp and getting the trailer stuck. Also think about how deep in the water the tow vehicle will need to be in order to float the standup hull.

    While the Triton dual axle frame is sturdy, the narrow forward portion is the least stiff. Think about side to side wobble of the standup's weight when the trailer hits road bumps at speed. There will be a twisting stress on the bunk mounting to the frame and the trailer frame itself as the trailer twists and shakes. The cross bunks will act like a teeter-totter so the mounting and bracing needs to withstand the forces involved.

    These are some of the reasons I am leaning towards the rear mounted frame extension arrangement for a sideways standup bunk configuration. Especially with the Triton WC2-2 as the starting point.

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    12timeworldchamps's Avatar
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    I hear your concerns too. I really want all skis on one trailer, don't want to mess with two trailers... Getting the standup deep enough to float off is my main concern. One of my sitdowns is a two seater. So mabe mounting the stand up bunks almost at a 45 degree angle may be an option. This may assist in floating it off.

    Eddie

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    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by 12timeworldchamps View Post
    I hear your concerns too... Getting the standup deep enough to float off is my main concern...

    Eddie
    Putting the additional bunks across the back would allow you to have a storage box mounted up front

    Another option might be to extend the tongue and mount the extra bunks inline with the tongue. That would keep the weight centered and the standup can fit between the bow winches of the main bunks. The tongue extension would need to be sturdy.

  8. #8
    Quote Originally Posted by K447 View Post
    Putting the additional bunks across the back would allow you to have a storage box mounted up front

    Another option might be to extend the tongue and mount the extra bunks inline with the tongue. That would keep the weight centered and the standup can fit between the bow winches of the main bunks. The tongue extension would need to be sturdy.

    Hello,

    I was wondering how would you go about adding additional bunks across the back? I have a single pwc shorelander trailer now with a SeaDoo Spark and looking to pick up a stand up ski. I would prefer to keep the trailer I have now and side mount the standup if possible.

    Thanks
    Mike

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    For front mounting, one could make a pivoting carrier that makes use of parallelogram arrangement. It would carry the 3rd ski higher up and forward, then pivot back and down to launch. No need to reposition and or drop the trailer and truck to launch or recover. Obviously stresses will be higher with the added elevation, but that could be accounted for in materials and angles.


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    Click avatar for tech links/info K447's Avatar
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    In the photo below the trailer is not fully rigged, the front winch tower was set aside temporarily. The main winch stands were not yet shifted back to the ‘three skis’ weight balance positions.

    But you you can see the reinforced frame beams, tongue hinge and the front step. 5x3 beams are 1/4” wall aluminum.



    I decided to not mess about with complex rotating supports and hinge pivot systems for the third PWC. I wanted a sturdy trailer that would work for many years, thousands of road miles and hundreds of launches. And be easy to use.

    I started with a stock Triton WC2-2 trailer, for the added weight capacity and the longer frame (compared to the single axle Triton double).

    Current configuration has a 5x3 extended tongue with hinge and additional 5x3 structure under the factory frame, all the way back to the first axle location. Both torsion axles were shifted forward on the frame to partially offset the added front weight and length. The trailer is sturdy and flexes much less than the original despite the added length and weight.

    There is a fairly large square decking area under both trailer boxes which extends down the center to the rear frame rail.

    The bunks for the standup are on standard Triton bunk brackets. I used modified Triton winch slide rails for the bracket base rails. The standup bunks and brackets are removable leaving a flat and open deck area.

    When the stand-up is on the trailer I move the winch towers for both sit-down watercraft rearwards at least a foot. This keeps the tongue weight within reason although still on the heavy side. Which is just fine for driving/handling. The resulting gap between the main winch stands and trailer box allows side access to the trailer deck.

    While my tow vehicle is rated for circa 5000 pounds and can handle the roughly 3000 pound fully loaded trailer, I also installed four wheel EHD disc brakes on the trailer. The WC2-2 trailer came from Triton with two wheel drum surge brakes, which were terrible from day one. With the upgraded 10 inch disc brakes it can now stop as quickly with the trailer as with no trailer at all. Tekonsha P3 brake controller in the car.

    Certainly this is an expensive way to build a trailer carry a third watercraft, but I expect it to last a long time. It rides well with none of the wet noodle frame flexing and ski bounce over hard bumps of the original Triton.

    The front step, flat non-slip 5-bar pattern aluminum decking and dual trailer boxes give us places to stand, sit and change in/out of wetsuits and such, without parking lot gravel and dirt getting into the gear or the tow car. We can walk between the big skis from the trailer rear or climb on to the front deck from either side. When the stand-up is not loaded access to the deck from the front step is super convenient but even with the stand-up it is not difficult.

    During watercraft launch and recovery it is easy to move around on the trailer deck without worry of mis-steps or sliding off a narrow frame rail. And slippery launch ramps are less risky now since I can walk and stand on the trailer rather than the sloped ramp in the water.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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