Dyne 18 Boom

Discussion in 'RUA Riverside Composites' started by dynegreg1, Jul 24, 2007.

  1. dynegreg1

    dynegreg1 King Dyner

    Joined:
    May 31, 2006
    Messages:
    587
    Location:
    Pingree Grove, IL
    Boat Model and Year:
    1990 Hydrodyne 20 Open Bow
    Ski Team:
    Skimmer/Aquanut alum
  2. dynegreg1

    dynegreg1 King Dyner

    Joined:
    May 31, 2006
    Messages:
    587
    Location:
    Pingree Grove, IL
    Boat Model and Year:
    1990 Hydrodyne 20 Open Bow
    Ski Team:
    Skimmer/Aquanut alum
  3. RiverRat

    RiverRat Hydrodyne 18 Specialist

    Joined:
    Sep 30, 2006
    Messages:
    508
    Location:
    Shoreview, MN
    Boat Model and Year:
    1971 Baby Dyne
    Ski Team:
    Twin Cities River Rats
    That looks like a KW boom. Mine is the same thing, except instead of the vertical bar that goes down to the gunnel (gunwale?), the first section of boom has a double curve (down then back up) so it sits on top of the gunnel near the rub rail. Makes for more of an angle up on the end of the boom, but it works.

    I would take a picture of it, but it's still being stored at the bottom of the river.
     
  4. dynebob1

    dynebob1 Boat of the Month

    Joined:
    Jun 22, 2006
    Messages:
    557
    Location:
    Glen Ellyn, Illinois
    Boat Model and Year:
    1998 18 OB RUA- 250XS.and 1997 Twin Rig /225 optis
    That is a K.W. boom. With the adjustable clamp on the pylon you can raise or lower the boom by moving the clamp up or down. I had to adjust it so the end of the boom was higher for the kids, and they kind of had to reach for it when they were in the water, but it was more comfortable when the were footing.

    I built a stainless steel support leg that went from the deck (where the "T" bar sits on it) to the floor of the boat. I took my time and belt sanded the upright tube until it fit perfectly, tack welded it while it was in place with the mig (because of the different angles needed) then pulled it out and tig welded the entire thing. I then roughed up the glass with a small disc grinder and glue it in with 3M's Plexus. This now will support the deck if someone hangs on the boom and puts excess pressure on that area.

    Bob
     
  5. RiverRat

    RiverRat Hydrodyne 18 Specialist

    Joined:
    Sep 30, 2006
    Messages:
    508
    Location:
    Shoreview, MN
    Boat Model and Year:
    1971 Baby Dyne
    Ski Team:
    Twin Cities River Rats
    Sounds like you've got it all covered. I like the way mine sits on the deck near the rub rail, but I like how your's is elevated from the deck so the angle isn't so high to get some distance from the water.

    I'm pretty sure mine will hold up. The first person I had on it was over 250lbs. Have to turn the motor full right to get him started.
     
  6. dynebob1

    dynebob1 Boat of the Month

    Joined:
    Jun 22, 2006
    Messages:
    557
    Location:
    Glen Ellyn, Illinois
    Boat Model and Year:
    1998 18 OB RUA- 250XS.and 1997 Twin Rig /225 optis
    That was weird having to totally turn the engine to the right when first taking off then staightening out as you gain speed. Was your boom also a K.W. ?? I had Karl make me this one when I had my 20foot "BarefootHydrodyne" boat and I kept it when I sold it and bought this 18 footer. It's a nice sturdy piece, and stores well when not in use.

    Bob
     
  7. RiverRat

    RiverRat Hydrodyne 18 Specialist

    Joined:
    Sep 30, 2006
    Messages:
    508
    Location:
    Shoreview, MN
    Boat Model and Year:
    1971 Baby Dyne
    Ski Team:
    Twin Cities River Rats
    Yup, it's a K.W. He must have figured it was cheaper to put a couple bends in the first tube then to make the support bracket that is on yours. And you are correct. They do store nicely. I can't even tell it's below me every time I drive or ski over it.
     
  8. walk_on_water

    walk_on_water Established Hydrodyner

    Joined:
    Oct 21, 2007
    Messages:
    82
    Location:
    Toronto Canada
    Boat Model and Year:
    17.6ft dyna-ski 2006
    Ski Team:
    club de skinautique
    when your on that boom do you get alot of spray ??? or is it just at the starting ?
     

Share This Page