Graupner Speed 700 Race 9.6v

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  • ib456
    Junior Member
    • Jan 2008
    • 12
    #1

    Graupner Speed 700 Race 9.6v

    Hi,

    I am using the moter listed below in a jet sprint hull with a Graupner jet drive. I am wondering if anyone knows how many amps it can handle before meltdown?... I have been running it on 7.2 volts as i havent gotten my new ESC for it yet. Goes alright on 7.2v's but as expected it should go faster... Just wondering f anyone knows if this motor will handle 12v? Due to where the battery needs to be placed it would be better if i had two 6v packs or even if only would take 9.6 two 4.8v packs so i could balance the weight out, with a battery either side of the jet unit.

    I dont seem to be able to find out much about this motor, so any info would be good.



    HIGH REVVING 700 ELECTRIC MOTOR WITH INTERNAL COOLING FAN.

    9.6 Voltage
    Suitable for 2 : 1 gears or direct drive

    Operating Voltage 7.2 V - 9.6V

    No Load rpm 19000 min-1
    Current Drain @ Max Efficiency 17.5A

    thanks
    Tags: None
    • ReddyWatts
      Fast Electric Addict!
      • Apr 2007
      • 1711
      #2
      I have run it on 2 - 6 cell NiMH's (14.4 volts) before at 35 amps.
      ReddyWatts fleet photo
      M1 Supercat - Neu 1527 1Y, 8s / Mean Machine- Feigao 580, 8s, 120 HV esc
      Mean Machine - Feigao 540 14XL, 8s, 100 amp HV esc, X537/3

        Comment

        • ib456
          Junior Member
          • Jan 2008
          • 12
          #3
          Thanks,

          I just noticed that the ESC i have brought will only support up to 10 cells.... is a pity... will just run it on 12v and see what it goes like...

            Comment

            • paulwilliams
              Member
              • May 2007
              • 82
              #4
              I've run the 9.6v motor on 16 cells. If you increase the cell count (and therefore the voltage), reduce the prop size to keep the current draw below 30-35 amps. It's not the voltage that kills the BB Turbo, but the amps drawn and the consequent heat build-up. If you haven't already done so, fit some watercooling to the motor.

              Paul
              www.fastelectrics.net

                Comment

                • kck741
                  Senior Member
                  • Aug 2007
                  • 265
                  #5
                  hey im looking for a jet sprint hull cant seem to find them anywhere I know there rare
                  S.S.R.C-Southern Style Radio Control

                    Comment

                    • ib456
                      Junior Member
                      • Jan 2008
                      • 12
                      #6
                      I was lucky and picked one up really cheap 2nd hand and it looks it.. very rough, but I hear the mould they used has been destroyed... I know of a place in australia that makes them for the gas motors so are about 100cm long... and for use with a sikk or zen... go really well

                      there is one for sale on the New Zealand version of Ebay, links below... not cheap tho... is ready to run with a nitro motor in it.

                      Trade Me
                      http://www.trademe.co.nz/Toys-models/Radio-control/Boats/auction-137590111.htm

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