Run time question

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • dereckg
    Senior Member
    • Jul 2012
    • 153

    #1

    Run time question

    Being new to boats Im not sure what kind of run time I should expect ?? My set up is 120 amp esc with a 3674kv motor I plan to use two 2s 5000mah 40c
    drive it like you stole it !!
  • driftah
    Senior Member
    • Aug 2010
    • 760

    #2
    expect around 5min area,what hull? I suggest running a 4s2p setup if u have room due to a higher availability of amps and runtime....if thats what u are goin for that is? careful of the prop and setup if you are gonna be runin 4s1p as batts like to go pufffff sometimes.

    Comment

    • madmikepags
      Fast Electric Addict!
      • Aug 2012
      • 1359

      #3
      3674 kv motor is a 2-3s motor 4S is asking for BOOM!!!! 2500kv is on the crazy high end of a 4S setup.
      We call ourselves the "Q"

      Comment

      • dereckg
        Senior Member
        • Jul 2012
        • 153

        #4
        The set up is in au thunder tiger outlaw obl Previous owner ran with 4s and said it was under powered
        drive it like you stole it !!

        Comment

        • Brushless55
          Creator
          • Oct 2008
          • 9488

          #5
          Originally posted by dereckg
          The set up is in au thunder tiger outlaw obl Previous owner ran with 4s and said it was under powered
          what kv and prop ??
          .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

          Comment

          • dereckg
            Senior Member
            • Jul 2012
            • 153

            #6
            3674 kv with a prather 225
            Originally posted by Brushless55
            what kv and prop ??
            drive it like you stole it !!

            Comment

            • dereckg
              Senior Member
              • Jul 2012
              • 153

              #7
              when you gona sell one of your cat. UL's
              drive it like you stole it !!

              Comment

              • ezhitz
                Senior Member
                • Aug 2009
                • 428

                #8
                Just a thought do you mean that its 3674 leopard motor
                :canada

                Comment

                • siberianhusky
                  Fast Electric Addict!
                  • Dec 2009
                  • 2187

                  #9
                  Thats a setup waiting to explode! Way to high a kv for 4s.
                  I hope you have a 3674 sized motor and are unsure of the KV.
                  There is no way you even want to try to run a boat at over 50000 rpm! If you do make sure to take video of it's one and only run! Will be an impressive smoke show!
                  If my boats upside down then who owns the one I thought I was driving the last two laps?

                  Comment

                  • dereckg
                    Senior Member
                    • Jul 2012
                    • 153

                    #10
                    I bought the boat here and is listed as Thunder Tiger Outlaw obl mono with 120a esc and Tacon 3674
                    Originally posted by siberianhusky
                    Thats a setup waiting to explode! Way to high a kv for 4s.
                    I hope you have a 3674 sized motor and are unsure of the KV.
                    There is no way you even want to try to run a boat at over 50000 rpm! If you do make sure to take video of it's one and only run! Will be an impressive smoke show!
                    drive it like you stole it !!

                    Comment

                    • Brushless55
                      Creator
                      • Oct 2008
                      • 9488

                      #11
                      Originally posted by dereckg
                      3674 kv with a prather 225
                      3674 is the can size.. KV is the rpms
                      post a link to the add and we will see the motor..

                      Originally posted by dereckg
                      when you gona sell one of your cat. UL's
                      uhm, maybe within 24hrs
                      .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

                      Comment

                      • dereckg
                        Senior Member
                        • Jul 2012
                        • 153

                        #12
                        FS: Thunder Tiger Outlaw OBL 40" Mono / 5s 40c batteries / Props. Was listed on 7 23 If you can link this not to comp. savoy Im sure im not giving correct info.
                        drive it like you stole it !!

                        Comment

                        • siberianhusky
                          Fast Electric Addict!
                          • Dec 2009
                          • 2187

                          #13
                          most of the time you want a 1800 to 2200 kv motor for running on 4s, this will give you an unloaded rpm of aprox. 26000 - 32000 depending on KV.
                          Depending on the version of Tacon motor and the KV and only having 5000mah on board you could have very limited runtime.
                          Fully charge your batteries, run the boat for one minute solid. Bring the boat back in and charge the batteries again, a decent charger should tell you how many mah went back into the battery after 1 minute of runtime. Remember you don't ever want to run your batteries below 20% capacity, this means you should never put more than 4000 mah back into your 5000mah batteries.
                          Now that you know how much you used in a minute it easy to figure out how long you can run and still have at least 1000mah left in those batteries when you're done a run.
                          With that prop depending on the KV of the motor I think you'll find you can run about 3 minutes and still have a good margin of safety left in the batteries. Once you get it dialed in you may find you can get longer runtimes.
                          When you do your first one minute run make sure to check the temperatures on the batteries, esc and motor. If they are hot you will need to get a smaller prop. To be safe run it for 2 minutes the next time and charge, the more data you collect the more accurate your estimates are.
                          Personally I'd get a smaller prop to start with, always better to start small and work your way up. It doesn't take long for a bad setup to blow up an esc.
                          If my boats upside down then who owns the one I thought I was driving the last two laps?

                          Comment

                          • lenny
                            Fast Electric Addict!
                            • Sep 2010
                            • 4293

                            #14

                            This is his boat he got,
                            (120a esc and Tacon 3674) it ran 40-45mph consistently on 5s. With the right motor and esc this would be a great boat for high speeds and still be stable.

                            Hears a links,http://forums.offshoreelectrics.com/...ops&highlight=

                            http://forums.offshoreelectrics.com/...ger-Outlaw-OBL
                            ? ONLY IF THEY WORK

                            My youtube videos.http://www.youtube.com/user/61manx?feature=mhee

                            Comment

                            • dereckg
                              Senior Member
                              • Jul 2012
                              • 153

                              #15
                              You are correct thank you
                              Originally posted by lenny
                              This is his boat he got,
                              Hears a link.http://forums.offshoreelectrics.com/...ger-Outlaw-OBL
                              drive it like you stole it !!

                              Comment

                              Working...