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boatman's 1/72 HMS Tiger C20 build

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  • outrunner
    • Apr 2019
    • 2420

    #5311
    Originally posted by boatman
    i may need to buy some bigger props but will see on that on sept warship day an cheers for your ideas
    chrisb
    Chris, using bigger props will just make your problem worse as the motors will have to work harder so drawing even more power, something I learned from flying electric powered model aircraft.

    Comment

    • boatman
      SMF Supporters
      • Nov 2018
      • 14498
      • christopher
      • NORFOLK UK

      #5312
      Originally posted by outrunner
      Chris, using bigger props will just make your problem worse as the motors will have to work harder so drawing even more power, something I learned from flying electric powered model aircraft.
      YEA Andy you make a good point but i was just thinkin of prop thrust as to get tiger movin i think the 33 mm props i have on are to small but will see on that but cheers for the info as i dint think of that
      thanks
      chrisb

      Comment

      • adt70hk
        SMF Supporters
        • Sep 2019
        • 10428

        #5313
        Hi Chris

        Just had a quick catch-up good to hear she's in the water now and I obviously hope you sort out the power issues.

        ATB

        Andrew

        Comment

        • Jim R
          SMF Supporters
          • Apr 2018
          • 15745
          • Jim
          • Shropshire

          #5314
          I don't know what to say Chris. An exceptional amount of work and just about there. I am certain you'll sort these final issues but you must be very frustrated.

          Comment

          • boatman
            SMF Supporters
            • Nov 2018
            • 14498
            • christopher
            • NORFOLK UK

            #5315
            Originally posted by adt70hk
            Hi Chris

            Just had a quick catch-up good to hear she's in the water now and I obviously hope you sort out the power issues.

            ATB

            Andrew
            THANKS Andrew yes i hope so too
            Originally posted by Jim R
            I don't know what to say Chris. An exceptional amount of work and just about there. I am certain you'll sort these final issues but you must be very frustrated.
            AN HI Jim yes i am as the probs on this ship are twice what ive had on all my other ships but hope to sort this soon but it may take severall trips to the pond to get the probs sorted as yes everything goes great at home but up the pond with waterload on the props is when the probs start but im goin to keep these super sized fuses an fit just one in to power all 4 motors an see if it will fuse as there is a heck of a eletric current goin through these ESC's an motors an the motors i will get will hopefully if i can get them will be about 8 v up to 15 v so they should be able to take the power with out blowin fuses
            chrisb

            Comment

            • spanner570
              SMF Supporters
              • May 2009
              • 15438

              #5316
              What a terrific ship she is Chris.
              It's been a joy for me to follow her build from chocks to pond!
              You must be well chuffed to see 'Tiger' finally on the water.

              Congratulations on a job well done. :thumb2:

              Can't help with the tech. side, but I'm sure you will sort it toot sweet........

              Ron

              Comment

              • boatman
                SMF Supporters
                • Nov 2018
                • 14498
                • christopher
                • NORFOLK UK

                #5317
                Originally posted by spanner570
                What a terrific ship she is Chris.
                It's been a joy for me to follow her build from chocks to pond!
                You must be well chuffed to see 'Tiger' finally on the water.

                Congratulations on a job well done. :thumb2:

                Can't help with the tech. side, but I'm sure you will sort it toot sweet........

                Ron
                AN Many thanks Ron yes she looks great on the water an i was very pleased she dint sink as some have what others have built but to me this fuse bussiness is a dissopintment as she only sailded for a few mins before the fuses blew due to high eletric currant goin through the system an this fautly motor may have been the cause an hope 4 new motors will cure the probs an she will sail ok as rudder probs is already sorted so will find out on sept the
                10 th on next warship day
                ATB to you an your sir
                chrisb

                Comment

                • boatman
                  SMF Supporters
                  • Nov 2018
                  • 14498
                  • christopher
                  • NORFOLK UK

                  #5318
                  HELLO GUYS
                  well the big super sized fuse holder has arrived an i know Pete who is an eletrcain may balk at this idea of mine but im goin to fit this big fuse holder in next to the normal sized fuse box an ive worked out how to wire it in an get the best of both worlds so when new motors are fitted if she still blows them small 40 amp fuses then i will remove them an leave the small fuse box empty an then fit a supersized 4o amp its special holder an then try an if it still blow due to high currant then ive no choise but to fit in a 50 amp big fuse an then see what happens an by gum its big an the wire is thick as a pencil pic of it below Click image for larger version

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                  Comment

                  • Ian M
                    Administrator
                    • Dec 2008
                    • 18271
                    • Ian
                    • Falster, Denmark

                    #5319
                    I think I would have just ran a single in line fuse en each motor and see if it was the same motor every time was popping the fuse. I see that the ESC you show is up to 16v you are going to put two 12v motors across one. So 24v load on a 16v ESC...but what do I know, just those I have seen have been evenly matched from battery to motors, fuses and controllers.
                    Group builds

                    Bismarck

                    Comment

                    • boatman
                      SMF Supporters
                      • Nov 2018
                      • 14498
                      • christopher
                      • NORFOLK UK

                      #5320
                      Originally posted by Ian M
                      I think I would have just ran a single in line fuse en each motor and see if it was the same motor every time was popping the fuse. I see that the ESC you show is up to 16v you are going to put two 12v motors across one. So 24v load on a 16v ESC...but what do I know, just those I have seen have been evenly matched from battery to motors, fuses and controllers.
                      HI Ian yes you are right there about fittin a fuse to each motor but up the pond i could not do that as dint have the right eqipment an it must have been done up the pond to get water prop loading an could not have done that when i got her home as no waterloading could i so that would not have been right but i do see what you mean but dint think of it as i thought as them grouapner motors had been interfered with i just thought it was them but one thing puzzeles me where do you get 16 v from do you mean the motors ratein togeather ? as ive used this set up for all my ships same motors but different ESC 's sorry my reply a bit mixed up as just had some bad news
                      cheers for you thoughts but with all new motors there should not be any probs hopefully many thanks Ian
                      chrisb

                      Comment

                      • boatman
                        SMF Supporters
                        • Nov 2018
                        • 14498
                        • christopher
                        • NORFOLK UK

                        #5321
                        AN Ian when water loadin on props you must also take the wheight of the ship into account as the props an motors are tryin to push the ship through the water medium that i cant do at home either if you see what i mean
                        chrisb

                        Comment

                        • Ian M
                          Administrator
                          • Dec 2008
                          • 18271
                          • Ian
                          • Falster, Denmark

                          #5322
                          Originally posted by boatman
                          one thing puzzeles me where do you get 16 v from
                          It was the photo you posted of the ESC unit you posted. it says rated 7.2 - 16v
                          Originally posted by boatman
                          HI Pete here it is the ESC on ebay AN my brother found out in a test that no. 4 motor is faultY so hopefully that was the problem pic below OF ESC
                          [ATTACH=CONFIG]n1202987[/ATTACH]
                          Group builds

                          Bismarck

                          Comment

                          • Jim R
                            SMF Supporters
                            • Apr 2018
                            • 15745
                            • Jim
                            • Shropshire

                            #5323
                            Fingers and everything else crossed for you Chris. I'm sure you'll find a solution.

                            Comment

                            • boatman
                              SMF Supporters
                              • Nov 2018
                              • 14498
                              • christopher
                              • NORFOLK UK

                              #5324
                              Originally posted by Ian M
                              It was the photo you posted of the ESC unit you posted. it says rated 7.2 - 16v
                              yes i see what you mean Ian but will have a talk with the people who sell the motors i will buy an see what they say but i must admit that these bloomin beec ESC 'S seem to be the trouble as never had this prob when usein ELETRONIZE ESC an this is what i think is throwin me
                              cheers for pointing that out
                              chrisb

                              Comment

                              • boatman
                                SMF Supporters
                                • Nov 2018
                                • 14498
                                • christopher
                                • NORFOLK UK

                                #5325
                                AN Ian when i get the motors they may be a few volts out of what they should be an all that will happen is the motors will get a bit warm an i will probely fit some fans on them to cool them but should not blow any fuses as this is my main problem now im havin to use only what i can buy an not what i want an i would like these cam belt drive which i cant get now made by MFA AN THEY DONT MAKE THEM ANYMORE an yes some other firms now make them but they are really exspensive an too buy 4 well more than i want to spend an i may fit coolin fans on the motors also like in my NORFOLK an ive never had any probs so from what i can see its all to do with the parts i can only buy now an not the good parts i used to buy so its all hit an miss but i really think new motors will be best shot an i wish i could buy cam belt drives like in my norfolk motor with fans an not dereict drive how i am bein forced to use
                                cheers chrisb ps hope this makes sence AN BELOW MY NORFOLK MOTOR LAYOUT AN IT WORKS GREAT PPS but my tiger is twice the wheight of my norfolk an that will also make a big different when it comes to sailing on the pond OH ITS SO DIFFICULT TO EXSPLAIN Click image for larger version

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