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Thread: Surf Gate Build

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  1. #1
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

    Default Surf Gate Build

    I've been loading my Ssv with a 750 in the rear surf side locker, GG center (1100) and another 750 on the floor on the surf side. We spent a hour moving water around anound the other day switching sides for those normal footed people. I've been followins the surfgate threads on the Malibu, Sn and Moomba sites and decided it was time!

    I built one for a goofy footed set up and was amazed by its performance. It still needs some tweaking on the angle but I was able to surf the wake about double the length of pocket with no front weight and both 750s in there lockers, wakeplate up and 1mph less. The wake is not peaked and its a lot different since its so gradual and long but it was able to push me at 230. I had the angle at about 40 degrees from the transom and going to set up again at 30 trying to get the convergence a little closer to get some peak.

    Anyway I was happy that it was going to work so I started today building the starboard side and took some pictures.

    Basic design- 100% modular and manual with the anticipation of adding actuators down the road. The only connections is two threaded knobs on the fiberglass lip on the platform just lateral of the outer mounting brackets. Asthetics is important, the gates will fit in with the design and not extend beyond the height of the platform. All synthetic and noncorossive materials.

    Update- I have since dropped the threaded knobs and added straps. I added pictures later in the thread
    Last edited by CornRickey; 09-21-2013 at 12:17 AM.
    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

  2. #2
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

    Default

    I'll start posting them up tomorrow
    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

  3. #3
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

    Default

    Material knotched out for the bracket and marked for the rabbit work.


    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

  4. #4
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

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    Rabbited out till it was snug, also made room for the "bump out" around the mount.


    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

  5. #5
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

    Default

    Set up the rachet straps and wood contraption. The contraption is critical because when you bend the material around it bows out on the bottom decreasing its stability. Try to keep as much of the material in contact with the stern as possible. This stuff holds its heat. I let it cool for several hours with a fan and spraying it with windex to increase evaporative cooling.

    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

  6. #6
    Join Date
    May 2006
    Location
    Nashville
    Posts
    2,127

    Default

    What is holding it in place? Please tell me it's not the swim platform.

  7. #7
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

    Default

    Lateral pressure is up against the platform bracket mounted to the transom and from ta hinge assembly that goes from the gate back to the transom. The hole assembly is held in place by one threaded knob through the lower lip on the platform and into the mount that is between the platform and transom. So yes its held in place by the platform.

    I ran into a issue today though. It was the first time having both installed and the surf side gate (retracted) was messing up the wake. I tried cutting the gate down with no success. If I remove it the wake is th best I've seen behind my boat. I'm going to do a little more r&d to try to get it to function without having to remove and install them when switching although it takes about 30 seconds a side but storing them woukd be a pain.

    I was concerned about added pressures to the platform. Through my testing andseeing some of my very weak components first used not fail due to pressure I'm comcompletely comfortable with my set up and how it transfers the energy to the boat. I think there's no more that 100 to 150 lbs of force to th whole assembly. Additionally I have a FAE that ties in all three mounting brackets.
    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

  8. #8
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

    Default

    And how about you not respond with the sarcasm? Its not constructive.
    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

  9. #9
    Join Date
    Jul 2010
    Location
    N.W. Suburbs Chicago, IL
    Posts
    2,307

    Default Surf Gate Build

    I kind of buy your theory about the load being decreased due to the fact that this should require less ballast which will in turn not force the platform into the water as much. I'll start by saying I too am interested in how this is mounted, functions and distributes the load from a technical/engineering standpoint. My only caution is that you mentioned placing a lateral load or stress on the platform which might be more than the platform mounts were designed to withstand on a continued basis. Just my thought as of this moment.
    '86 Comp TS6M - Reborn 2016
    Riding a HO Sports CX Ski

  10. #10
    Join Date
    Apr 2012
    Location
    Tacoma, Wa
    Posts
    861

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    I hear you. I was going to hold off in posting more pictures till I get my issue figured out but I'll go ahead and post up more tonight. You will see that the gate is mounted on the leading edge with two hinges and propped out with a hinge assembly. On the newest version that I don't have a picture of, I welded in a turn buckle to adjust the angle. The turnbuckle body is aluminum. This takes the most pressure by far and holds up just fine. I'm not a engineer but I believe I have a understanding of basic physics and potential. I feel pretty comfortable with this on my very expensive boat.
    2003 Supra Launch 22SSV
    1986 Ski Natique 2001

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