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    OS .61FX Prop Size Question - 1/4/2013 9:35 AM   
    Jeremyjsm


     

    Posts: 2
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    Last Login: 1/5/2013
    From: las vegas, NV, USA
    Status: offline     		im building the Top Flite 60 size AT-6 Texan & im using the OS .61FX engine i was wondering if  a master airscrew 14x6 nylon propellar is a good choice or is it way to big for the engine everywhere i look i get mixed reviews on it some say you can some say you cant, if not what would you recomend

    thank you for the help in advance


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    RE: OS .61FX Prop Size Question - 1/4/2013 12:55 PM   
    Scar



    Posts: 3050
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    From: Peoria Hts, IL, USA
    Status: offline     		I'm using a 14X6 APC on my .91FX engines, because they provide a bit more braking than the recommended 13X7 and the 15X6 provides a bit too much braking. The 13X7 was really fast, and I had trouble slowing the Sukhoi down, the 14X6 provided all the speed I wanted, and would slow down the plane on approach.

    You can try the MA 14X6, but I think your .61 will want to spin a bit faster than your prop will allow. If it works to suit you for power, it will probably slow the plane down on approach for landing, and that can be a good thing.

    I think I'm using 12X6 and 13X6 on my .61 Zero. Enjoy your plane!
    Dave Olson

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    The true soldier fights not because he hates what is in front of him, but because he loves what is behind him GKChesterton

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    RE: OS .61FX Prop Size Question - 1/4/2013 3:37 PM   
    scale dail


     

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    Status: offline     		Good advice. I run 12x6 wood props with my 61FX. For peak power you need to get to the max power RPM. Also the engine will run cooler with less load. If power and cooling are no issue, then bigger props are fine. The nylon Master Airscrews and APCs are heavy and will give you flywheel effect for lower idle.

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    RE: OS .61FX Prop Size Question - 1/4/2013 9:20 PM   
    Jeremyjsm


     

    Posts: 2
    Score: 100
    Joined: 1/4/2013
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    From: las vegas, NV, USA
    Status: offline     		thank you for your input... the smaller props just look so weird on it... its like a giant with small feet... cooling will deffinately be a problem in the summer seeming how i live in las vegas hahaha


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    RE: OS .61FX Prop Size Question - 1/6/2013 9:39 PM   
    vertical grimmace



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    From: ft collins , CO, USA
    Status: offline     		Generally, 11-7, 12-6 is the typical sized prop for a .61.

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