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90 size headspeeds

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  • 90 size headspeeds

    Messing with a 700 it occured to me, Headspeed what are people aiming to achieve. is it the same at a 50 or because of the larger disc and bigger engine is the headspeed slower?
    All the best
    Tony.
    Thunder Tiger E700 - Align 700N - Fusion 50 - Align 600N



  • #2
    Lower hs on the bigger helis.
    My Synergy is running at about 1850 in idle up and it's nice and responsive
    Cheers, Lee.
    Proud recipient of an EGS

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    • #3
      i got 1800 normal 1850 Id1 1950 Id2 i think
      DMHC = Nice place to fly!
      MyPhotoBucket


      mmm what shall I buy next

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      • #4
        1800-1900 is what i believe a 90 runs at. however, i have flown an Ion-X2 at 2100 RPM flybarless and it was INNNNSAAANNEEE!!!
        Avant Aurora - For Sale, pretty much RTF £900

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        • #5
          If you try to run the 700 with over 2000 headspeed you'll have tail problems, this is due to the design of the plastic tail blade grips, they tend to lock at high RPM. I was a little concerned that I could only run 60% gain with my Spartan gyro and still had a little wagging in funnels, this was the same issue with the 600N which, not surprisingly, runs exactly the same tail. I fitted a Quick UK tail to my 700 today and managed to bump gyro gain up to 70%. I'm running around 1950rpm in idle-up 2.
          Steve H

          http://www.himbletonRChelicopters.co.uk
          Trex 600N, Trex 700N, now 3G!, Raptor E550 now in fetching Hughes 500E, Trex 250, Trex 500CF, Trex 550E 3G, Beam E4, Outrage 550, Logo 500 3D.

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          • #6
            My 700 is 1750 and 1950.
            ---------------------------------------------------
            Trex 700n DFC.
            Trex 700e TOP.
            Trex 700e Pro.
            Trex 600n DFC.

            Vbar Controller.

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