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HARM J Hydro Project 2014

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  • HARM J Hydro Project 2014

    Week One: "Building a Better Mousetrap"

    Once again, the Hydroplane and Raceboat Museum, in conjunction with Seattle Outboard Association, has started its annual J Hydro Building Project, where we work with kids and families to help them build their own J/A Hydro. There's some exciting new changes in this year's program:

    Last year, Ed Karelsen spent a lot of time helping us build the Sorensen kit boats. As Ed worked on these, he began to envision a J/A Kit Boat that would be easier and faster to build, especially for new racers, or for boat builders who may have little-to-no experience in building race boats.

    For 2014, Ed designed a new J Hydro for the program, that not only featured design updates, but would also be constructed in a way that that would allow the boat to be built much fastern and easier. Our 2013 host for the build, Don Kelson, agreed to have us back for 2014, and was instrumental in taking Ed's designs and converting them into an inexpensive, easy to build kit. With the help of a good number of our "2013 Alumni Dads" Jeff Cole, Charlie Marquard, Tyler Ulsh, plus assistance from Dave "Jigsaw" Anderson and Matt Yarno, initial components were cut out in bulk, and ready for assembly when our new builders came for their first session on Saturday, Dec 7th.

    It started with a pre-cut bottom....made of 6 mil, with a 4 mil doubler pre-glued to reinforce the inside of the cockpit.

    Then, the transom and motor board were attached to the bottom.

    Next up were cockpit sides, also pre-cut out. These get attached to the transom, and screwed to the bottom. The Dashboard was added to create a rigid box between the transom and the front end of the cockpit sides.

    Following that, the Airtrap/Sponson inside girders got attached top the outside edges of the bottom. They get screwed into the bottom, just like the cockpit sides, and tied into the transom.

    Saturday's work concluded with adding internal frame gussets on both sides. In less than 6 hour's worth of work time, the boats' progress is at where we were last year after about 4-5 weeks of work.

    Sponson and non trip framing go on next week.

    R-19

    PS---For some reason these photos did not post in sequential order of constructions...must be a software glitch I guess....
    Attached Files
    www.gleasonracing.com

    "No, THAT is why people hate him."

  • #2
    Kudos

    Kudos to Ed Karlsen et al for taking the time and effort to design a J kit that enables kids and their parents to assemble their own boat quickly and easily. Quicker assembly keeps the kids attention as they see their efforts form into THEIR boat!

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    • #3
      J project

      Boats are going to be bulletproof...these things are going to be around long after I am done racing. If things go well we will be ready for decks in 2 Saturdays. Very cool stuff.....big thanx go out to Pat for organizing everything and to Ed Karelson for the cool design and to Don Kelson for putting up with all the kids running around his shop. I hope this project inspires other regions J hydro wise......it is just so much fun to be involved with this....!

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      • #4
        JH Moses lake nats

        I'm thinking over 20 entries? Probably over 12 just from region 10!

        Thats how you build a sport!
        Kyle Bahl
        20-R

        "He didn't bump you, he didn't nudge you, he rubbed you, and rubbin' son is racin'!"

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        • #5
          J project

          More pics please, that is a nice simple design that Ed created! Wish it was close to me I would like to help with the build.

          I have a 1982 25ssh class Karelsen pickle and he used the same inner cockpit floor/bottom design, double ply (7mil + 6mil) and no cross ribs or stringers in the cockpit for a low cg and less weight.
          Last edited by ZUL8TR; 12-09-2013, 04:11 AM.
          "Keep Move'n" life is catching up!
          No man's life, liberty or property are safe while the legislature is in session.

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          • #6
            Karelson design

            Boats are very simple to put together...sort of like assembling a small jig saw puzzle. And, like I said earlier....they are going to be bullet proof. If one of then gets damaged in an accident it will be a simple matter to fix it. I can't wait to watch the first one hit the water. Will not be long if things go like planned. Dave

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            • #7
              J kits

              Are these kits ready for sale? How much?

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              • #8
                Originally posted by Scott Deware View Post
                Are these kits ready for sale? How much?
                no, not at this time......they were designed for the HARM J project, with no intentions of mass production....as both the designer and builder of the kits really do not have the extra time to mass produce them...........both GREATS in the race boat world...........Ed Karelsen and Don Kelson!! But, maybe Pat has an idea for other regions to do the same...

                PS: the first generation kits came from Darrell Sorensen, so am sure you guys to buy them from him to start your own project.......hope so!!
                Last edited by mercguy; 12-16-2013, 04:51 PM.
                Daren

                ​DSH/750ccmh/850ccmh

                Team Darneille


                sigpic

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                • #9
                  This program has been so successful that by my estimate/calculation about 30% of the boats at Soap Lake were J-boats.

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                  • #10
                    I think this project is great. Also want to thank sponsonhead for sharing this. I am building the same boat for my first build and have used the old posts for this project to help me with mine and it has been a huge help.

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                    • #11
                      Week 2: Sponsons and sealing!

                      This week, on our second working day of building 5 new J Hydros, we added sponson frames, gussets and sheers, as well as afterplane gussets and frames, and deck battens. And, since we had a little extra time, we did an initial coat of Herlmsman varnish as sealer inside all the boats.

                      So....two days of work.....bottoms, sides and dash in, all framing and internal sealing done.

                      On Day 3 (next Saturday), we'll start fairing the sponson sheers, add sponson battens add non trip skins and sponson skins. We will also start adding hardware (transom handles, bow eyes and skid fin brackets.

                      R-19
                      Attached Files
                      www.gleasonracing.com

                      "No, THAT is why people hate him."

                      Comment


                      • #12
                        varnish

                        Originally posted by sponsonhead View Post
                        This week, on our second working day of building 5 new J Hydros, we added sponson frames, gussets and sheers, as well as afterplane gussets and frames, and deck battens. And, since we had a little extra time, we did an initial coat of Herlmsman varnish as sealer inside all the boats.

                        R-19
                        Nice work and progress. Keep the pics coming.
                        Would that be Minwax Helmsman varnish being used? Why no epoxy base coat - cost, weight, other reasons?
                        "Keep Move'n" life is catching up!
                        No man's life, liberty or property are safe while the legislature is in session.

                        Comment


                        • #13
                          Helmsman Varnish

                          We went with the Helmsman due to cost. And it does a perfectly adequate job of doing what it is supposed to do, seal the inside wood. One gallon covered 4 boats.

                          Epoxy sealer will be used on the outside.

                          Forgot to mention...we also go Old School and use Weldwood to put these together. And before all the Epoxy Snobs wrinkle their noses at this, let me remind you that the first boats we built in this project 9 years ago are still racing...the 43 year old Price Craft BU that Joe built with it is still in one piece in my garage...and HARM's 1958 Miss Bardahl currently being restored is also held together by this great glue. Did I mention it's water soluble and therefore Kid-Friendly?

                          This is one of the many ways that we are able to deliver a new boat to new racers, rigged with hardware, for a cost of $750. Yep, that's WITH hardware.

                          R-19
                          www.gleasonracing.com

                          "No, THAT is why people hate him."

                          Comment


                          • #14
                            Weldwood and varnish

                            Originally posted by sponsonhead View Post
                            We went with the Helmsman due to cost. And it does a perfectly adequate job of doing what it is supposed to do, seal the inside wood. One gallon covered 4 boats.

                            Epoxy sealer will be used on the outside.

                            Forgot to mention...we also go Old School and use Weldwood to put these together. And before all the Epoxy Snobs wrinkle their noses at this, let me remind you that the first boats we built in this project 9 years ago are still racing...the 43 year old Price Craft BU that Joe built with it is still in one piece in my garage...and HARM's 1958 Miss Bardahl currently being restored is also held together by this great glue. Did I mention it's water soluble and therefore Kid-Friendly?

                            This is one of the many ways that we are able to deliver a new boat to new racers, rigged with hardware, for a cost of $750. Yep, that's WITH hardware.

                            R-19
                            Well that's a good reason. In the past I have used many great marine spar varnishes like Pettit Captains, Interlux, Valspar, Epifanes(sp) and some others, presently I use the Minwax Helmsman not just for cost but it really produces very good results that last, especially for race boats that are protected a good bit of the time.

                            As for the Weldwood I have built boats using it and presently have a hydro I constructed in 1969. Raced it in the 1970's in 2 APBA classes and still use it. It has been thru quite a bit of use and no joint has come apart due to glue failure. Using that glue requires good carpentry for it to remain a solid joint it is not a filler like epoxy.
                            "Keep Move'n" life is catching up!
                            No man's life, liberty or property are safe while the legislature is in session.

                            Comment


                            • #15
                              In all the boats I ever built with Weldwood I never had a joint fall with it, what one forgets no matter what glue you use its it comes down to just how good the glue is that the plys are glued together with in the plywood.
                              Destiny is a matter of chance,it is a matter of choice; it is not a thing to be waited for, it is a thing to be achieved.

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