Mah resitrictions

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  • T.S.Davis
    Fast Electric Addict!
    • Oct 2009
    • 6221

    #16
    Gotcha. So Mah aren't really an issue. I don't want to see any classes become "must run twins" to win. Have to think on that.

    Offshore in Atlanta runs well over 4 minutes because the course is ginormous. 6 laps and a mill takes over 4 minutes. Closer to mid 5 minutes. Forget about what ever offshore setup you've devised for NAMBA. It wont work on the Atlanta course.
    Noisy person

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    • Doug Smock
      Moderator
      • Apr 2007
      • 5272

      #17
      Originally posted by T.S.Davis
      Doug, what does IMPBA do with twins? That's the only hang up I can think of. A 39" cat with twin 1527/1y and 10k per side would be madness.
      1. A ‘pack’ is defined as the cell(s) wired in series or parallel or any wiring combination that is used
      to provide electrical power to the speed control for the purpose of driving the electrical motor(s).
      a. Only one pack maybe used even if multiple speed controls are used.
      b. The pack must be made up of only one type of cell chemistry.
      c. In multiple speed control/motor installations the total pack voltage must be used as the
      supply input to each speed control.


      This is another area where the two orgs differ.

      Your Q Cat with 6s per side is considered a 12s setup and is illegal in the IMPBA.
      Wire 6s2p to both controls and your good to go. If you can squeeze 20k in there go for it.
      MODEL BOAT RACER
      IMPBA President
      District 13 Director 2011- present
      IMPBA National Records Director 2009-2019
      IMPBA 19887L CD
      NAMBA 1169

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      • Doug Smock
        Moderator
        • Apr 2007
        • 5272

        #18
        Originally posted by T.S.Davis
        Gotcha. So Mah aren't really an issue. I don't want to see any classes become "must run twins" to win. Have to think on that.

        Offshore in Atlanta runs well over 4 minutes because the course is ginormous. 6 laps and a mill takes over 4 minutes. Closer to mid 5 minutes. Forget about what ever offshore setup you've devised for NAMBA. It wont work on the Atlanta course.
        Just because you mentioned it.
        1655736_671533752904145_150620165_o.jpg

        Mill and six.
        MODEL BOAT RACER
        IMPBA President
        District 13 Director 2011- present
        IMPBA National Records Director 2009-2019
        IMPBA 19887L CD
        NAMBA 1169

        Comment

        • Doby
          KANADA RULES!
          • Apr 2007
          • 7280

          #19
          Thats not an offshore course...its a frigg'in global excursion

          Southerners
          Grand River Marine Modellers
          https://www.facebook.com/search/top/...ne%20modellers

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          • Doby
            KANADA RULES!
            • Apr 2007
            • 7280

            #20
            I suspect at some NAMBA events there might have been some inadvertent "illegal" capacities being used.

            Can the CD make an exemption for this on race days? Can clubs make the exemption on the race flyers?
            Grand River Marine Modellers
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            • Doug Smock
              Moderator
              • Apr 2007
              • 5272

              #21
              Originally posted by Doby
              Thats not an offshore course...its a frigg'in global excursion

              Southerners
              Now you know why we needed your buds to flush their toilets during the drought. LOL

              I can see why a short sighted Kanadian would have trouble with it.
              MODEL BOAT RACER
              IMPBA President
              District 13 Director 2011- present
              IMPBA National Records Director 2009-2019
              IMPBA 19887L CD
              NAMBA 1169

              Comment

              • T.S.Davis
                Fast Electric Addict!
                • Oct 2009
                • 6221

                #22
                That's goofy too. Two separate supplies of 6s10k to two separate speedo is the same as a single supply of 6s20k to two speedo. You just build a bus bar. There is no difference. Accept that you have extra resistance in the bus bar. Silly. Someone didn't think that one through either. I understand the intent but the end result is just more junk in the trunk. Pachmeyer did this back 2007 I think for a CAFE race. First real lipo race I can remember. I think his bus was solid gold at the time.
                Noisy person

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                • T.S.Davis
                  Fast Electric Addict!
                  • Oct 2009
                  • 6221

                  #23
                  Originally posted by Doby
                  Thats not an offshore course...its a frigg'in global excursion
                  It's nutty John. That back pin is sooooooo far out that you're not sure if your going to clear it, hit it, or make land fall. Maybe nutty isn't fair. How about "challenging"?
                  Noisy person

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                  • Doby
                    KANADA RULES!
                    • Apr 2007
                    • 7280

                    #24
                    I remember in London we had that issue as well, the offshore marker disappeared in the early morning sun...all came down to whose spotter had a better relationship with the "Force"
                    Grand River Marine Modellers
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                    • Doby
                      KANADA RULES!
                      • Apr 2007
                      • 7280

                      #25
                      ....so, back to my question about the CD........
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                      • Doby
                        KANADA RULES!
                        • Apr 2007
                        • 7280

                        #26
                        Originally posted by Doug Smock
                        Now you know why we needed your buds to flush their toilets during the drought. LOL

                        I can see why a short sighted Kanadian would have trouble with it.
                        How do you southerners do it...drive by Brail???...Clunk..Thud...whoops, to close!
                        Grand River Marine Modellers
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                        • Doby
                          KANADA RULES!
                          • Apr 2007
                          • 7280

                          #27
                          Originally posted by Doby
                          ....so, back to my question about the CD........
                          ....
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                          • TRUCKPULL
                            Fast Electric Addict!
                            • Apr 2007
                            • 2971

                            #28
                            Originally posted by Doug Smock
                            c. In multiple speed control/motor installations the total pack voltage must be used as the
                            supply input to each speed control.


                            This is another area where the two orgs differ.

                            Your Q Cat with 6s per side is considered a 12s setup and is illegal in the IMPBA.
                            Wire 6s2p to both controls and your good to go. If you can squeeze 20k in there go for it.
                            The wiring is no problem, My "P" Cat is wired so that each ESC sees 4S2P 10,000 mAmps total
                            To be able to run 4 1/2 min, My average AMP draw can not be more then 65 Amps per motor.

                            A big "Q" twin - 6S3P - 6,600mAmp packs = Oval racing at 80MPH

                            Larry
                            Past NAMBA- P Mono -1 Mile Race Record holder
                            Past NAMBA- P Sport -1 Mile Race Record holder
                            Bump & Grind Racing Props -We Like Em Smooth & Wet

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                            • TRUCKPULL
                              Fast Electric Addict!
                              • Apr 2007
                              • 2971

                              #29
                              Originally posted by Doby

                              Can the CD make an exemption for this on race days? Can clubs make the exemption on the race flyers?
                              John

                              I think the problem would be the INSURANCE
                              We are only covered when we stick to the rules.

                              Larry
                              Past NAMBA- P Mono -1 Mile Race Record holder
                              Past NAMBA- P Sport -1 Mile Race Record holder
                              Bump & Grind Racing Props -We Like Em Smooth & Wet

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                              • Doby
                                KANADA RULES!
                                • Apr 2007
                                • 7280

                                #30
                                Originally posted by TRUCKPULL
                                John

                                I think the problem would be the INSURANCE
                                We are only covered when we stick to the rules.

                                Larry
                                Well that just opens a whole new can of worms....
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