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  • #1

    Pack sharing

    Hi all has anybody used there 450 packs in series on a 500 and if so what flight times did you get i currently have 7x 2200mah 25c 3s.
    So should I expect the same flight time as my 450, 5mins or will it be lower.
    I will in the future expand so it's just as an interim measure until funds allow for a bigger charger and 6s batteries
    Thanks all,
    Paul
    The Fleet

    SAB Goblin 500 sport. (in build)
    XK K110 on its way. Arrived and superb
    Blade MCPX (just about airworthy)
    Trex 450 Pro on Brain 2
    Raptor 30 V2. Converted to electric with Quick UK conversion
    Mini Titan super Cobra ah1
    Alien 550 Quad.3DR Pixhawk
    Futaba 7C 8FGS 14SG
    Specktrum DX6i
    Hovered by me,flown by my boys Nicholas and Edward.
    Cheers,
    Paul
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  • #2
    It's one of those things where in order to leave a safe margin you'll probably get a bit less than 5 minutes but I'd say theoretically you could get a bit more with very gentle flying, circuits and hovering etc. The Trex 500 is a bit more than double the rtf weight of the 450.

    I use mostly 2650mah packs (single 6s pack) in the 500 and some 3000s and I have my timer set at 5.20. So sometimes I have over 30% left but if I fly a bit harder or if it's windy etc. I'm sometimes right at the 80% draw or even a bit more so I leave the timer at a conservative number.
    Last edited by trillian; 30-12-2012, 05:39 PM.
    Kasama, Minicopter, Henseleit, JR, Shape, Beam
    Robbe, RMJ Raptor gasser, powered by
    Spartan, Spirit, BeastX, Kontronik, CY Total-G, DX8
    member of Epsom Downs and Bloobird clubs
    Proud recipient of 7 EGS! and a platinum star

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    • #3
      Easiest thing is to monitor the cell volts on discharge with the £2 lipo alarm. Lots of noise when the weakest cell hits whatever volts you want to set.
      Flasher 450 Sport. Assan GA250 with 520 tail servo, MKS DS450 cyclic.
      Multiplex Cockpit Tx, DX7, DX6i
      Blade 130-X, MSR, MSRX
      Phoenix Sim

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      • #4
        Thanks for your help chaps.
        I will drop the timer to a safe 3.5 minutes to start with and measure what I put back then increase the flight time as I feel apprpopriate.
        Time to make a series adapter then.
        Cheers,
        Paul
        Last edited by PKNEC; 30-12-2012, 08:15 PM.
        The Fleet

        SAB Goblin 500 sport. (in build)
        XK K110 on its way. Arrived and superb
        Blade MCPX (just about airworthy)
        Trex 450 Pro on Brain 2
        Raptor 30 V2. Converted to electric with Quick UK conversion
        Mini Titan super Cobra ah1
        Alien 550 Quad.3DR Pixhawk
        Futaba 7C 8FGS 14SG
        Specktrum DX6i
        Hovered by me,flown by my boys Nicholas and Edward.
        Cheers,
        Paul

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