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Thread: Trex 600 OS70 Big Block Conversion

  1. #16
    RC Model Flyer Steve's Avatar
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    Good on you leckylee - it's a little engineering project and why not?

    It's what RC modelling used to be all about 25 years ago when RC helis were in their infancy and nothing was really available off-the-shelf like it is today, or if it was then it was beyond the budget of the common man.

    Go for it.

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  2. The Following 2 Users Say Thank You to Steve For This Useful Post:

    heliguy chris (04-01-2012), leckylee (03-01-2012)

  3. #17
    Registered Member leckylee's Avatar
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    Quote Originally Posted by Steve View Post
    Good on you leckylee - it's a little engineering project and why not?

    It's what RC modelling used to be all about 25 years ago when RC helis were in their infancy and nothing was really available off-the-shelf like it is today, or if it was then it was beyond the budget of the common man.

    Go for it.
    Cheers dude i will do it and after this I'll finish my large Tesla coil lol, the heli first.
    lets think back. 25 years

    I was 12 and i had a Tamiya Hornet and a dog called Vicki she was a guard dog for our pub.

    2 years later i got a plane and a MFA sport 500 heli and thats where it ended until now lol
    Trex 700 LE, 610's cyclic. Vbar, Radix mains, OS91HZ H ring C spec Viper (lovely)
    Trex 600 NSP 610's, OS55, 9254 tail, Vbar, Align Mains

    Trex 600E 12s 610's cyclic, spartan, 9254 tail, Scorpion, turnigy ESC opto 120HV, 620 Mavrick mains.

    Trex 700EF3C stock (amazing)

    Trex 450 Pro Beastx, stock

    Spectra G gasser FOR SALE spec to follow

  4. #18
    Registered Member trillian's Avatar
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    Quote Originally Posted by Paulo uk View Post
    Trillian, you don't need to change the pinion it works very well on stock.

    Paul
    I'm sure it works but at 16000 rpm and 8.5 to 1 gear ratio you only get something like
    1880 rpm headspeed. I would have thought you'd want something like 2200 (or more).
    But I guess at 1880 you'd be able to pull a massive pitch range without bogging.
    Beam E4 and Beam Avantgarde
    Blitz Avro
    , Hirobo SDX, Rave ENV
    Raptor 50,Trex 500
    Robbe Futura SE and Dyna-X - the 'BMW' of helis
    Century Predator SE gasser - the yank tank
    CSM, Spartan, Futaba and JR, DX7
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  5. #19
    Registered Member trillian's Avatar
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    Quote Originally Posted by leckylee View Post
    Cheers dude i will do it and after this I'll finish my large Tesla coil lol,
    I had some friends that built a very big coil many years ago. It could do 15 foot sparks and it was made to
    be portable so the primary coil was more compact than optimum but it was an impressive beast.

    On a related topic to the 600 engine mod, one of my winter projects is a Robbe Futura SE
    with a Laser 150 fourstroke engine. It should be pretty cool for the novelty factor assuming
    the Laser is a reliable enough engine. It definitely looks the biz.
    Last edited by trillian; 03-01-2012 at 11:34 PM.
    Beam E4 and Beam Avantgarde
    Blitz Avro
    , Hirobo SDX, Rave ENV
    Raptor 50,Trex 500
    Robbe Futura SE and Dyna-X - the 'BMW' of helis
    Century Predator SE gasser - the yank tank
    CSM, Spartan, Futaba and JR, DX7
    ,
    Proud recipient of 4 EGS!


  6. The Following User Says Thank You to trillian For This Useful Post:

    leckylee (04-01-2012)

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