38" H&M Intruder twin to begin

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  • Jesse J
    scale FE racer
    • Aug 2008
    • 7116

    #211
    Yes, porpoising... I may be adding some nose ballast since the hatch is soooo far back, I am limited in my batt placement. notice in beginning of vid how far forward the batts are? I am thinking a chunk of 3/4" plywood up in the nose..... or more strut angle.
    "Look good doin' it"
    See the fleet

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    • Rumdog
      Fast Electric Addict!
      • Mar 2009
      • 6453

      #212
      A little more downward strut angle should do it!

      Comment

      • bigpapa
        Fast Electric Addict!
        • Apr 2009
        • 2330

        #213
        hey jesse 5s packs came in today funtime when jeff finishes my strut and wire drive
        THUNDER TIGER OUTLAW,THUNDER TIGER BANDIT
        CARBON FIBER MINICAT HYDRO,MINICAT HYDRO,PROBOAT MISS GEICO,SKUNKWORKS 32" CAT TWIN, H@M VIPER TURBINE ---JEFF WOHLT WIRE DRIVES

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        • bigpapa
          Fast Electric Addict!
          • Apr 2009
          • 2330

          #214
          wanna top 65+ i hope..........
          THUNDER TIGER OUTLAW,THUNDER TIGER BANDIT
          CARBON FIBER MINICAT HYDRO,MINICAT HYDRO,PROBOAT MISS GEICO,SKUNKWORKS 32" CAT TWIN, H@M VIPER TURBINE ---JEFF WOHLT WIRE DRIVES

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          • bigpapa
            Fast Electric Addict!
            • Apr 2009
            • 2330

            #215
            geuss we will see what she will take......
            THUNDER TIGER OUTLAW,THUNDER TIGER BANDIT
            CARBON FIBER MINICAT HYDRO,MINICAT HYDRO,PROBOAT MISS GEICO,SKUNKWORKS 32" CAT TWIN, H@M VIPER TURBINE ---JEFF WOHLT WIRE DRIVES

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            • Jesse J
              scale FE racer
              • Aug 2008
              • 7116

              #216
              I gave her some more down strut, but she is still bobbing a little. after this run I gave it max down, have to see next run, hopefully tomorrow. She did really good though, came back reading 49 mph on GPS on 5S. She did a solid 40mph on 4S. does that mean 55 mph on 6S???

              Another thing I haven't figured out is why she doesn't turn very sharp at high speeds... I have full turn available and have to let off the throttle to get her to turn.... Not sure if you can tell from this vid, but at slow speeds I have all kinds of turn, but at high speeds, I can't get her to turn sharper than maybe a 100' radius...???

              "Look good doin' it"
              See the fleet

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              • Punisher 67
                Ignore list member #67
                • May 2008
                • 1480

                #217
                Jesse is it possible that you are overpowering your servo
                Necessity is the mother of invention.............

                Youtube Video's http://www.youtube.com/user/Titanis2000

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                • Jesse J
                  scale FE racer
                  • Aug 2008
                  • 7116

                  #218
                  This is something I had not considered... I have a high torque digital servo (traxas) that I thought would have enough umph. But now that you mention it, that could be. What kind of force in a servo do I need for this? What do you recommend?
                  "Look good doin' it"
                  See the fleet

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                  • Punisher 67
                    Ignore list member #67
                    • May 2008
                    • 1480

                    #219
                    A digital should have enough grunt , you might have to maybe see if you can stall it manually Jesse or see what kind of power it has just to eliminate it as a possible cause
                    Necessity is the mother of invention.............

                    Youtube Video's http://www.youtube.com/user/Titanis2000

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                    • Jesse J
                      scale FE racer
                      • Aug 2008
                      • 7116

                      #220
                      will try that this afternoon. hoping for another run tomorrow and if all holds together, may try 6S...
                      "Look good doin' it"
                      See the fleet

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                      • egneg
                        Fast Electric Addict!
                        • Feb 2008
                        • 4670

                        #221
                        It could also be that the rudder does not have enough surface area to turn at high speed.
                        IMPBA 20481S D-12

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                        • bustitup
                          Fast Electric Addict!
                          • Aug 2008
                          • 3071

                          #222
                          Are you setting the end points of the serve so the rudder is only turning about 20 deg. Each way?







                          Originally posted by Jesse J
                          This is something I had not considered... I have a high torque digital servo (traxas) that I thought would have enough umph. But now that you mention it, that could be. What kind of force in a servo do I need for this? What do you recommend?
                          SPRINT CAT 40.........BOOGIMAN 25" MONO 8xl
                          EX President of the Offshore FE Vultures Society

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                          • wolf IV
                            Senior Member
                            • May 2008
                            • 961

                            #223
                            Originally posted by Jesse J
                            will try that this afternoon. hoping for another run tomorrow and if all holds together, may try 6S...
                            OOOOOOOOOOOOOOOOOOHHHHHHHHHHHHHHHHH YYYYEEEEEEEEEEEEEAAAAAAAHHHHHHHHHHHHH!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!! FREEK'N' INSANE BROTHER!!!!!!!!!
                            http://www.youtube.com/watch?v=e-npTLBHefY

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                            • Jesse J
                              scale FE racer
                              • Aug 2008
                              • 7116

                              #224
                              I think the surface area is not a problem the thing is HUGE!!!

                              I just tested, turned it on and went left right, well it is actually a faulty servo ROD. I gave it too much angle and it BENDs with not much force. Need to redo the servo rod (it is .078" thick enough but too much bend. I need to head to Ace hardware first thing tomorrow.

                              Wolf, did you run today? or you just happy to see me?
                              "Look good doin' it"
                              See the fleet

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                              • wolf IV
                                Senior Member
                                • May 2008
                                • 961

                                #225
                                Originally posted by Jesse J
                                I think the surface area is not a problem the thing is HUGE!!!

                                I just tested, turned it on and went left right, well it is actually a faulty servo ROD. I gave it too much angle and it BENDs with not much force. Need to redo the servo rod (it is .078" thick enough but too much bend. I need to head to Ace hardware first thing tomorrow.

                                Wolf, did you run today? or you just happy to see me?
                                ran the elam... got a vid link under my build thread.. but im still happy to see you
                                http://www.youtube.com/watch?v=e-npTLBHefY

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