Running the FAI Fox .049

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  • #40522
    Anonymous
    Inactive

    It has arrived and looks good. I have some 25% niro fuel for my TD’s.
    Will this be ok for the Fox? Its Byron’s small engine fuel with extra castor. I have some 65% Areo-Dyne liquid dynamite but don’t think I’ll try it. Any input?
    Dan

    #43549
    Dean McGinnes
    Participant

    I run 35% Sig in mine with no problems. However, believe them when they tell you that over 40% eats plugs. One run and that is it, so keep the Aerodynamite 65% for Cox Tee Dees etc.

    I am working on an alternate design for the head which will allow the higher nitro.

    Stay tuned.

    #43550
    Dohrman Crawford
    Participant

    Very good engine. I run 35% in mine. It hauls the model up very well. Be careful if you are using the Fox tank mount. You don’t have a lot of time to get the needle setting right and launch. If you dawdle like I did, you will starve the engine by sloshing in the tank and it will quit right after launch. It is a control line tank with no klunk in it. Wrecked my 1/2A Tbird at the SAM Champs. [since repaired]

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