hopping hydro

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  • Gary
    Fast Electric Addict!
    • Jan 2009
    • 1105

    #1

    hopping hydro

    My little Ten shock hydro has always had a bad habbit of jumping around when making turns. Almost like it just will not stick to the water. Tried a couple turn fins and allthogh it will turn better it still jumps around. Anyone else have that problem? Other than that it runs grat.
    PT-45, 109mph, finally gave up after last bad crash
    H&M 1/8 Miss Bud 73 mph
    Chris Craft 16 mph
  • detox
    Fast Electric Addict!
    • Jun 2008
    • 2318

    #2
    Hull may be running too wet causing sponsons to grab and go. Try adjusting your strut less deep to loosen up hull.

    Angle on turnfin may be too aggressive. Pulling hull down in turns. Try a nuetral setting

    Comment

    • tlandauer
      Fast Electric Addict!
      • Apr 2011
      • 5666

      #3
      Originally posted by Gary
      My little Ten shock hydro has always had a bad habbit of jumping around when making turns. Almost like it just will not stick to the water. Tried a couple turn fins and allthogh it will turn better it still jumps around. Anyone else have that problem? Other than that it runs grat.
      Gary, I have the very OPPOSITE problem, all my turns are great, but try going straight, she will hop and dip from side to side, when I make a big sweeping arch, the hull seemed well planted.
      Too many boats, not enough time...

      Comment

      • Gary
        Fast Electric Addict!
        • Jan 2009
        • 1105

        #4
        Think your right Detox. I moved the COG back more and will give it another test this week. I will let you know. tlandauer THAT I have seen and is from to deep a prop or to big of a prop. What do you run?
        PT-45, 109mph, finally gave up after last bad crash
        H&M 1/8 Miss Bud 73 mph
        Chris Craft 16 mph

        Comment

        • tlandauer
          Fast Electric Addict!
          • Apr 2011
          • 5666

          #5
          Originally posted by Gary
          Think your right Detox. I moved the COG back more and will give it another test this week. I will let you know. tlandauer THAT I have seen and is from to deep a prop or to big of a prop. What do you run?
          Mine is bought here with a different motor, the prop is 30 mm, plastic, not the Tenshock metal. I tried to move the strut but there is no room for adjustment. I couldn't detach the strut from the stuffing tube, otherwise I may be able to elongate the hole and move the strut up.
          The only thing is maybe my COG is way off, although I checked with MinicatUSA's instruction and it is within the ball park. As is, because of the larger motor can, my ESC is in front of the motor, I run a 2s, 2300 lipo on the port side. Motor is this :http://www.hobbypartz.com/07e-c-sl-10t-2848-blue.html ( I believe sell bought it from HK however). So you see the motor can is a lot bigger than stock Tenshock. Any further advice is greatly appreciated!
          Too many boats, not enough time...

          Comment

          • oscarel
            Fast Electric Addict!
            • Dec 2009
            • 2128

            #6
            Have u tried just a hair positive on the strut?

            Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

            Comment

            • tlandauer
              Fast Electric Addict!
              • Apr 2011
              • 5666

              #7
              Originally posted by oscarel
              Have u tried just a hair positive on the strut?

              Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
              No, not really, because the Stainless Steel Stuffing tube is rather rigid, I will see if it is possible, thanks!
              Too many boats, not enough time...

              Comment

              • Gary
                Fast Electric Addict!
                • Jan 2009
                • 1105

                #8
                Its possible and you can elongate the hole a little like i did to make some ajustment. Tube is stiff but remember it only needs a tiny adjustment for a tiny boat.
                Last edited by Gary; 05-19-2013, 07:17 AM.
                PT-45, 109mph, finally gave up after last bad crash
                H&M 1/8 Miss Bud 73 mph
                Chris Craft 16 mph

                Comment

                • tlandauer
                  Fast Electric Addict!
                  • Apr 2011
                  • 5666

                  #9
                  Originally posted by Gary
                  Its possible and you can elongate the hole a little like i did to make some ajustment. Tube is stiff but remember it only needs a tint adjustment for a tiny boat.
                  Will try, thanks for the advices, is the bore of the strut glued to the stuffing tube? I was afraid to force the issue, maybe a slight twist will take it off? I seem to see some transparent CA in that area. Boat is in mint condition so I don't think previous owner has applied glue to it, plus it is the same way as on my Starship Outrigger which I bought from Minicat.
                  Too many boats, not enough time...

                  Comment

                  • Gary
                    Fast Electric Addict!
                    • Jan 2009
                    • 1105

                    #10
                    Strut should come right off no problem.
                    PT-45, 109mph, finally gave up after last bad crash
                    H&M 1/8 Miss Bud 73 mph
                    Chris Craft 16 mph

                    Comment

                    • sundog
                      Platinum Card Member
                      • Feb 2009
                      • 878

                      #11
                      Originally posted by tlandauer
                      Will try, thanks for the advices, is the bore of the strut glued to the stuffing tube? I was afraid to force the issue, maybe a slight twist will take it off? I seem to see some transparent CA in that area. Boat is in mint condition so I don't think previous owner has applied glue to it, plus it is the same way as on my Starship Outrigger which I bought from Minicat.
                      If that is the boat I sold you? If so, I never had that problem going straight. Do you suppose it has anything to do with the steering fin you installed? I don't know about glue on the stuffing tube, I never had reason to remove it.
                      Legend 36 sailboat, KMB Powerjet Ed Hardy Viper, ABC jet pwrd BBY Oval Master, ABC Hobby Jetski, NQD Tear Into's, HK Discovery 500, MickieBeez pwrd Jet Rigger!, Davette/Gravtix jet sprint, KMB Powerjet Pursuit, NQD pwrd Jet Catamaran!,Steam pwrd African Queen, Sidewinder airboat, Graupner Eco Power

                      Comment

                      • tlandauer
                        Fast Electric Addict!
                        • Apr 2011
                        • 5666

                        #12
                        Originally posted by sundog
                        If that is the boat I sold you? If so, I never had that problem going straight. Do you suppose it has anything to do with the steering fin you installed? I don't know about glue on the stuffing tube, I never had reason to remove it.
                        Maybe it has something to do with the turn fin I installed, the pond is not that smooth and I am comparing the attitude with a slightly larger DF Vortex 16. I was referring to the CA Tenshock used to secure the brass bore on the strut to the tube, same as on my Starship Outrigger.
                        Don't get me wrong, IN NO WAY WAS I COMPLAINING the boat, I love it, just wanted to see if anybody has any suggestions.
                        I have not tried to move up the strut simply because I didn't have time, the strut blade has to be taken out so I can enlarge the hole in order to raise the strut. Frankly, it is not a bad hop and I can live with it, the CA is tricky to remove, I don't want to ruin a mint conditioned hull!
                        Thanks.
                        Too many boats, not enough time...

                        Comment

                        • Gary
                          Fast Electric Addict!
                          • Jan 2009
                          • 1105

                          #13
                          Moving the COG helped alot but I think the spray foam up front and the larger esc may have added a little to much weight but it runs alot better now.
                          PT-45, 109mph, finally gave up after last bad crash
                          H&M 1/8 Miss Bud 73 mph
                          Chris Craft 16 mph

                          Comment

                          • Namba328
                            Factory Team Pilot SPP
                            • Jul 2011
                            • 1117

                            #14
                            Originally posted by Gary
                            Moving the COG helped alot but I think the spray foam up front and the larger esc may have added a little to much weight but it runs alot better now.
                            Btw tenshock hydros tend to be loose. Its in there design.
                            Tommy Levescy sponsored by: RCJuice.com, Rawspeed, Scorpion Precision Performance, TC Racing, Triton RC, Oxidean Marine and Cencal Hobbies.
                            Current Namba 1mile record holder: Pltd sport hydro 1:19:72 P-sport hydro 1:14:31

                            Comment

                            • paultbg
                              Senior Member
                              • Mar 2012
                              • 103

                              #15
                              @Gary-so, in the end what was the solution in your case?
                              I have the same problem with a Joysway Sea Drifter...

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