Miss Geico Race Prep

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  • tiqueman
    Fast Electric Addict!
    • Jul 2009
    • 5669

    #136
    Update and repeat form "strut rudder conversion"

    More testing today and feel like Im getting somewhere. I started w/ the strut neutral and about 1/2 below the bottom of the hull. Batteries were half inch off the back of the trays. Bounce bounce bonce. I left the batteries alone for all of the adjustment. I angled the strut down slightly, then up slightly.. bounce bounce bounce. I tried lowering the strut. And again went thru 2 different up angles and 2 different down, including neutral.. bounce bounce bounce. I then started slowly adjusting it higher and higher, again using all angles and it slooooowly began showing improvement. It seemed a slight positive and higher depth is what it wanted. I moved it up to clear by thousandths of the bracket and had the best run yet. However after bringing it in, she slipped a tad and the prop contacted the bracket just slightly. I re-set it, tweaked the prop and then I tried messing w/ the rudder angle. I tucked it forward, it seems to have brought the bow down in the straights, BUT, the bounce was almost gone. I pulled it back out just a bit and runing w/ the wind in about a 1/4" to 1/2" chop, light breeze, no bounce at all. Running into the wind she bounces minimally. My strut is angle slightly up and as high as it can go before the prop (642) contacts the strut bracket. Darin had mentioned that some of the struts were mounted at the bottom and caused issues w/ prop clearance. I feel I need to go a smidgen higher, but, My strut is one that is mounted at the bottom of the transom. Im going to remove part of the tail of the bracket to see if I can get enough clearance and if it is in fact my resolution before I go removing the bracket and drilling new holes in my pretty boat. I actually feel like Im getting somewhere.

    Most importantly as Darin said, the strut brackets on these boats apperently arent all mounted in the same location. I feel its important in the "helping of others" that we get back to refering to the strut angle as compared to the bottom of the boat while sitting on a flat surface and not the "top of the strut" like we somehow got into on this.

    Darin, thanks for your help in this set up. I was told by a reputable racer about pulling the rudder out.... DEFINITLEY not the thing to do. Since it was cornering wonderfully to begin with, I never thought to try tucking it in.... Thanks!


    Since this is more about bouncing and not the offset, my following test result will only be in this forum.
    Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
    HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
    WEST FL MODEL BOAT CLUB www.scottskiracing.com

    Comment

    • tiqueman
      Fast Electric Addict!
      • Jul 2009
      • 5669

      #137
      Originally posted by mike c
      thanx man thats what i was hoping for just wanted to hear b 4 i pull the purchase trigger
      Yeah Mike, as for off the shelf RTR boats.. you wont find a more bad a$$ one. It is fantastic.. Yeah it has a tiny hic-up or two, but NOTHING like the issues Ive had w/ other rts. And at max your looking at $10.00 to do upgrades, rather than entire hardware packages, escs/ motors etc etc. Proboat and Darin just about hit this one sqaure on the head for a perfect boat. Although..as for a RTR.. I think they did. Get one, you wont regret it!
      Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
      HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
      WEST FL MODEL BOAT CLUB www.scottskiracing.com

      Comment

      • mike c
        Junior Member
        • Nov 2010
        • 4

        #138
        more bad luck

        Originally posted by tiqueman
        Yeah Mike, as for off the shelf RTR boats.. you wont find a more bad a$$ one. It is fantastic.. Yeah it has a tiny hic-up or two, but NOTHING like the issues Ive had w/ other rts. And at max your looking at $10.00 to do upgrades, rather than entire hardware packages, escs/ motors etc etc. Proboat and Darin just about hit this one sqaure on the head for a perfect boat. Although..as for a RTR.. I think they did. Get one, you wont regret it!
        thanx i just whent to the river on my lunch break, no rescue boat, cold water and flipped the widow over again 4 feet from shore. lucky though that with the 30c venom lipo the prop made enough wind to slowly push it to shore. i think i am finished with this thing.

        Comment

        • tiqueman
          Fast Electric Addict!
          • Jul 2009
          • 5669

          #139
          Testing at a stand still. She's dry docked. I pulled the shaft to grease it as I do at least every other run, usually after every run, and its about to be in two. It is the correct wind. LHS is out of 3/16 - .150 stubs... Ive got abundant quantities of .150 flex, but no stubs... so, Im waitng now for my OSE order to arrive sometime next week.
          Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
          HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
          WEST FL MODEL BOAT CLUB www.scottskiracing.com

          Comment

          • ron1950
            Fast Electric Addict!
            • Aug 2010
            • 3024

            #140
            scott where was it breaking anyway? just courious....
            MY RETIREMENT PLAN?????.....POWERBALL
            74 vintage kirby clasic hydro, pursuit mono, mg, 47'' mono, popeye hydro...

            Comment

            • tiqueman
              Fast Electric Addict!
              • Jul 2009
              • 5669

              #141
              About 1/8" from where it connects into the stub shaft. I ended up unsoldering a stub off another boat , assembled a new shaft and got it back together for more testing tomorrow
              Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
              HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
              WEST FL MODEL BOAT CLUB www.scottskiracing.com

              Comment

              • Darin Jordan
                Fast Electric Addict!
                • Apr 2007
                • 8335

                #142
                Just in case you guys are curious... here is an EagleTree graph I got yesterday while doing some testing at the lake... The setup was:

                Motor: Stock ProBoat 1500KV
                ESC: Stock ProBoat 45A
                Prop: Stock ProBoat Stiletto Stainless (Prather 215 style)
                Battery: 4S1P ThunderPower 45C 5000

                This is a sample of around 6-seconds of a long straight run...

                I had an airspeed sensor installed, but the darn thing doesn't seem to be working... I think the new Pitot style tube they have just has too small an opening to really register correctly, so I've modified it and have it working better at home. I'll give it another try. Anyone try the GPS module?? Maybe it would work better??

                In the meantime, you can see where the stock setup is as far as Amps, RPMs, etc, under load.

                I will hopefully get some more data by the end of the weekend. My intent was to run through a series of props and record the data, but the weather around here is making that difficult, and I didn't have the controlled conditions I needed to really get it right (chargers setup, etc.,)... I'll see what I can do....
                Attached Files
                Darin E. Jordan - Renton, WA
                "Self-proclaimed skill-less leader in the hobby."

                Comment

                • tiqueman
                  Fast Electric Addict!
                  • Jul 2009
                  • 5669

                  #143
                  Awesome info Darin. I wondered if in fact the Amps stayed under 45. I see it averaged 47. I was going to log my 642 to see where it was. But I want to get it all trimmed out first. I think its close.

                  Out of curiosity, where is your strut bracket mounted on the transom. Mine is such that the bottom of the bracket is about 1/8" from the bottom of the transom.
                  Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
                  HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
                  WEST FL MODEL BOAT CLUB www.scottskiracing.com

                  Comment

                  • Darin Jordan
                    Fast Electric Addict!
                    • Apr 2007
                    • 8335

                    #144
                    Originally posted by tiqueman
                    Out of curiosity, where is your strut bracket mounted on the transom. Mine is such that the bottom of the bracket is about 1/8" from the bottom of the transom.
                    Same as yours... ALL of the first sets of these were that way... I'm not sure if they've been adjusted yet.

                    Another thing I'd like to do one of these days is to mill off the last 1/2" or so of the strut bracket. It hangs out over the prop a little too far, in my opinion, on the smaller (shorter-hub'd) props...
                    Darin E. Jordan - Renton, WA
                    "Self-proclaimed skill-less leader in the hobby."

                    Comment

                    • tiqueman
                      Fast Electric Addict!
                      • Jul 2009
                      • 5669

                      #145
                      Originally posted by Darin Jordan
                      Same as yours... ALL of the first sets of these were that way... I'm not sure if they've been adjusted yet.

                      Another thing I'd like to do one of these days is to mill off the last 1/2" or so of the strut bracket. It hangs out over the prop a little too far, in my opinion, on the smaller (shorter-hub'd) props...
                      Yeah I remember you saying that. LOL, I was going to do that last night but ran out of time doing other things. That is one of my projects today. Plus doing so will allow me to raise the strut a tad more.
                      Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
                      HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
                      WEST FL MODEL BOAT CLUB www.scottskiracing.com

                      Comment

                      • Darin Jordan
                        Fast Electric Addict!
                        • Apr 2007
                        • 8335

                        #146
                        Originally posted by Darin Jordan
                        Just in case you guys are curious... here is an EagleTree graph I got yesterday while doing some testing at the lake... The setup was:

                        Motor: Stock ProBoat 1500KV
                        ESC: Stock ProBoat 45A
                        Prop: Stock ProBoat Stiletto Stainless (Prather 215 style)
                        Battery: 4S1P ThunderPower 45C 5000

                        This is a sample of around 6-seconds of a long straight run...

                        In the meantime, you can see where the stock setup is as far as Amps, RPMs, etc, under load.

                        Incidentally... If you figure around 25% prop slip, based on the average RPMs shown on the graph of 21,173, one could estimate (calculate) the speed of the boat at around 38mph with this setup...
                        Darin E. Jordan - Renton, WA
                        "Self-proclaimed skill-less leader in the hobby."

                        Comment

                        • tiqueman
                          Fast Electric Addict!
                          • Jul 2009
                          • 5669

                          #147
                          Originally posted by Darin Jordan
                          Incidentally... If you figure around 25% prop slip, based on the average RPMs shown on the graph of 21,173, one could estimate (calculate) the speed of the boat at around 38mph with this setup...
                          Id say your calculated estimate is spot on. I GPS'd my neighbors blackjack at 40.4. My first outing w/ MG Id say it was about 2 mph slower than his BJ while running them as side by side as possible.

                          Darin, your just a wealth of great info... like Yoda
                          Geico epoxy laminate hatch sale thread Black Jack epoxy laminate hatch sale thread
                          HPR06 6S Twin HOTR Genesis (SOLD) Vantex 32" cat Geico racing
                          WEST FL MODEL BOAT CLUB www.scottskiracing.com

                          Comment

                          • ray schrauwen
                            Fast Electric Addict!
                            • Apr 2007
                            • 9471

                            #148
                            Originally posted by tiqueman
                            Darin, your just a wealth of great info... like Yoda
                            Just taller
                            Nortavlag Bulc

                            Comment

                            • Darin Jordan
                              Fast Electric Addict!
                              • Apr 2007
                              • 8335

                              #149
                              Originally posted by ray schrauwen
                              Just taller
                              And, on a good day, not GREEN!!
                              Darin E. Jordan - Renton, WA
                              "Self-proclaimed skill-less leader in the hobby."

                              Comment

                              • Brushless55
                                Creator
                                • Oct 2008
                                • 9488

                                #150
                                Great info!
                                .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

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