Blackjack 29 Blown Motor

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  • gyrotron
    Senior Member
    • Jul 2012
    • 481

    #1

    Blackjack 29 Blown Motor

    Hello Guys,

    I have had this boat for more than a week so far and up until now I did not have any problems with it. I was running it on (2) 2S lipos and yesterday I received (2) brand new 3S lipos so today after work I went to the pond to test drive it on a 6S setup. It ran great for about 2.5 mins and when I was getting ready to bring it ashore for the first temp check it stalled in the middle of the pond and I heard something blowing up below the canopy. I first thought the lipos had exploded but after recovering the boat I found out the motor had blown up. I contacted Horizon Hobby customer support and they took notes of the incident and will be replacing my boat right away (Kudos to Horizon Hobby customer service)

    P.S.: Before the incident I had noticed one of the batteries was getting hotter than the other when I was running it on (2) 2S so I don’t know if the issue could be ESC related. The only mod was a sharpened and balanced X440 /3 prop I was running on it everything else was stock.

    Blackjack 29_Blown Motor_Pic4.jpgBlackjack 29_Blown Motor_Pic1.jpgBlackjack 29_Blown Motor_Pic2.jpgBlackjack 29_Blown Motor_Pic3.jpg
    Last edited by gyrotron; 11-07-2012, 11:37 PM. Reason: added pictures
  • maxmekker
    Senior Member
    • Jul 2010
    • 412

    #2
    What a shame .. Is this boat rated to run 6s. I understand 'it can' but do proboat say 'go ahead' ? It must be pritty quick on 6s. my geico on 2000kv motor and 5s is just to much to enjoy it in a relaxing way :-)
    Drammen rock City

    Comment

    • gyrotron
      Senior Member
      • Jul 2012
      • 481

      #3
      Originally posted by maxmekker
      What a shame .. Is this boat rated to run 6s. I understand 'it can' but do proboat say 'go ahead' ? It must be pritty quick on 6s. my geico on 2000kv motor and 5s is just to much to enjoy it in a relaxing way :-)
      Hi Max,

      This is what Proboat preaches on their website among other things:


      Product Description
      Key Features
      Capable of reaching speeds of 50+mph


      50+ mph will require a higher cell count (6S)


      Needed To Complete

      (2) 2S-3S Li-Po batteries or (2) 7.2V - 8.4V Ni-MH batteries with EC3 connector


      States it will operate under the power load of (2) 3S Li-po = 6S

      What they don't say is that the motor wire gauge and/or bullet connectors going to the ESC will not suppor that burst of current coming from a 6S cell count plus a 1800kv motor which doesn't help with cooling things (it was my 1st time running 6S so I did not know what to modify prior to running the boat). When I receive the replacement boat I will change the bullet connectors to 5.5mm and hope the cable wires don't burn again.
      Last edited by gyrotron; 11-11-2012, 12:25 AM.

      Comment

      • maxmekker
        Senior Member
        • Jul 2010
        • 412

        #4
        I see. I think I read about someone tipping PB about the wires on the motor woud not hold up on 6s. Give us a video when you got it up and running again :-)
        Drammen rock City

        Comment

        • gyrotron
          Senior Member
          • Jul 2012
          • 481

          #5
          Originally posted by gyrotron
          Hi Max,

          This is what Proboat preaches on their website among other things:


          Product Description
          Key Features
          Capable of reaching speeds of 50+mph


          50+ mph will require a higher cell count (6S)


          Needed To Complete

          (2) 2S-3S Li-Po batteries or (2) 7.2V - 8.4V Ni-MH batteries with EC3 connector


          States it will operate under the power load of (2) 3S Li-po = 6S

          What they don't say is that the motor cables gauge and/or bullet connectors going to the ESC will not suppor that burst of current coming from a 6S cell count plus a 1800kv motor which doesn't help with cooling things (it was my 1st time running 6S so I did not know what to modify prior to running the boat). When I receive the replacement boat I will change the bullet connectors to 5.5mm and hope the cable wires don't burn again.
          P.S.: The 2.5 mins my Blackjack run on 6S, it easily broke the 50 mph barrier. It was faster than my Revolt 30 for sure.
          Last edited by gyrotron; 11-11-2012, 02:05 PM.

          Comment

          • gyrotron
            Senior Member
            • Jul 2012
            • 481

            #6
            Here are some pics of the clean up and new motor I will be testing on the burnt Blackjack while the replacement boat arrives. I picked up ad Turnigy SK3 EDF-3659-1900kv ($47.88), installed 6mm bullet connectors, removed the sticker and added a water jacket. Motor started fine on dry so I am guessing the ESC and electronics are fine too. I will give it a run tomorrow on 4S and 6S and report back about this motor.
            Attached Files

            Comment

            • LOVE6S
              Senior Member
              • May 2012
              • 545

              #7
              I have two of these motors, I am interested to know how you like it, have not tried mine yet, thanks.

              Comment

              • gyrotron
                Senior Member
                • Jul 2012
                • 481

                #8
                Originally posted by LOVE6S
                I have two of these motors, I am interested to know how you like it, have not tried mine yet, thanks.
                Sure, I will report back tomorrow. Canopy also burnt so I will be running it with tape on the windshield which has a hole in it. Lets see how this motor holds on running an x440 /3 prop.

                Comment

                • JimClark
                  Fast Electric Addict!
                  • Apr 2007
                  • 5907

                  #9
                  what prop did you use when running 6s?
                  "Our society strives to avoid any possibility of offending anyone except God.
                  Billy Graham

                  Comment

                  • TheShaughnessy
                    Fast Electric Addict!
                    • Mar 2011
                    • 1431

                    #10
                    Originally posted by JimClark
                    what prop did you use when running 6s?
                    In the OP it says he is using an x440/3

                    Comment

                    • gyrotron
                      Senior Member
                      • Jul 2012
                      • 481

                      #11
                      Originally posted by JimClark
                      what prop did you use when running 6s?
                      Jim,

                      I was using the x440 /3 prop which I ran before on a 4s count.

                      Comment

                      • gyrotron
                        Senior Member
                        • Jul 2012
                        • 481

                        #12
                        Originally posted by maxmekker
                        I see. I think I read about someone tipping PB about the wires on the motor woud not hold up on 6s. Give us a video when you got it up and running again :-)
                        Max,

                        I think we can tie this thread with one I just finished reading here is the link:

                        http://forums.offshoreelectrics.com/...617#post465617

                        PB is definetly aware of the 6S issue and their motor

                        Comment

                        • olwarbirds
                          Magic Smoke Wizard
                          • Oct 2012
                          • 1136

                          #13
                          Yes they are aware! and im not got gonna back down with them about this..we sell these boats....we have a PB29 and an Impulse 31....both are nice hulls....nice hardware....both have motor wire issues...and the impulse has a flexshaft coupler issue too....Gyrotron even if they are replacing the motor/boat...if it still has tlhe small wires on the motor, its gonna blow again...
                          They even tried to tell me that only the esc was 6S rated ... DJ
                          Tunnels-PS295. Cats-H&M M1 Supercat Daytona rivercat. Monos-DF Cyberstorm HiTech 29. Hydros- Ms K Vac-U-Pickle Custom built 37" shovel 10th scale converted to FE Shadow. Rigger-H&M Evo II. AQ Harbortug recovery boat. Build in progress 37" cf Dragboat

                          Comment

                          • gyrotron
                            Senior Member
                            • Jul 2012
                            • 481

                            #14
                            Originally posted by ;466433
                            Yes they are aware! and im not got gonna back down with them about this..we sell these boats....we have a PB29 and an Impulse 31....both are nice hulls....nice hardware....both have motor wire issues...and the impulse has a flexshaft coupler issue too....Gyrotron even if they are replacing the motor/boat...if it still has tlhe small wires on the motor, its gonna blow again...
                            They even tried to tell me that only the esc was 6S rated ... DJ
                            olwarbirds,

                            I really love this boat design and I had high expectations on its 6S compatility which at the begining made me like it even more. The whole point of having an ESC that supports 6S is to really be able to run 6S w/o upgrading the motor and/or connectors because of PB claiming it was 6S compatible I choose to go that way. I am totaly disapointed about the whole 6S issue and it certainly did not meet my expectations in the 6S arena. For the overprice I paid I feel they should recall their motors from current owners and place a disclaimer on the use of 6S... PB either truly makes this Blackack 6s compatible or not; it starts to smell like a Traxxas boat everyone knows for a not so good reputation with 6S cell count...

                            At least I can consider myself lucky and happy because they are replacing my boat so in that regard I have to give kudos to Horizon Hobby customer support. They have been very supportive and helpful of my problem with this boat.

                            Well, on my way to the pond before football time!
                            Last edited by gyrotron; 11-11-2012, 02:06 PM.

                            Comment

                            • stadiumyamaha
                              Fast Electric Addict!
                              • Apr 2011
                              • 1284

                              #15
                              Proboat has done the same thing Traxxas did with the spartan. That's just not a good reliable 6s set up. Especially for sport running. Even if you do get it running reliably the hull has a tendency to stuff badly at high speeds. I love my first gen but know its limitations.
                              How many times will they replace the boat because if failed on 6s which it will again
                              white geico w/2200kv 3674 leopard 53.5mph 4s2p, geico w/ 1800kv outrunner 52mph on 4s2p, genesis w/2200kv castle 53.8 on 4s2p, impulse 31 w/2200kv castle, stock p1 and ul-1

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