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Thread: Joe Ruscito's Kitfox S7 Build

  1. #301
    Senior Member jiott's Avatar
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    Default Re: Joe Ruscito's Kitfox S7 Build

    Joe, turn the trim rod end in until full nose up trim brings the HS front tube clear to the bottom of the slot in the tail access panels.

    Nearly everyone ends up with a heavy left wing on the maiden flight. It will happen even if your build and rigging is perfect and symetrical, due to the left turning tendencies of all aircraft (P-factor, engine torque, spiral slipstream). So you will need to tweak the rigging, lift strut rod ends, to eliminate it. Do it in stages; it usually takes 2-3 tries. Sitting on the left side does affect it a little, but most of us fly solo most of the time.
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  2. #302
    Senior Member Dorsal's Avatar
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    Default Re: Joe Ruscito's Kitfox S7 Build

    Congratulations on the first set of flights, sounds like she is flying beautifully and looks fantastic. Good call on adding the trim assist, I can fly almost hands off on final with full up trim (one notch of flaps). Your static RPM numbers look about right to me, speed seems off, what does the GPS say? No rush on the Dynavibe as Skidookid took himself off the list.
    Last edited by Dorsal; 11-05-2019 at 04:43 AM.
    Dorsal ~~^~~
    Series 7 - Tri-Gear
    912 ULS Warp Drive

  3. #303
    Senior Member efwd's Avatar
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    Default Re: Joe Ruscito's Kitfox S7 Build

    Congratulations Joe. Reading your post is like rereading my own. I made one half turn correction on the right wing lift strut and corrected my left wing heavy issue. It obviously doesn't require much. Paul L. Advises removing pitch on the opposite wing first.
    Eddie Forward
    Building
    SS7, 912iS, Garmin G3X

  4. #304
    Senior Member JoeRuscito's Avatar
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    Default Re: Joe Ruscito's Kitfox S7 Build

    Iím going to do another airspeed check before I make pitch changes. Iíll note the ground speeds.

    Do you happen to know why Paul suggests adjusting the light wing first? I read in another post that John M suggests adjusting the heavy wing first.

    Thanks!


    Sent from my iPhone using Tapatalk

  5. #305
    Senior Member efwd's Avatar
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    Default Re: Joe Ruscito's Kitfox S7 Build

    If I recall correctly, the idea is that you aren't changing much but if your going to turn a rod end, it would be ideal if you are gaining thread contact rather than reducing the number of thread engagement on a rod end bearing.
    Eddie Forward
    Building
    SS7, 912iS, Garmin G3X

  6. #306

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    Default Re: Joe Ruscito's Kitfox S7 Build

    I would think that you would be better to add washout than take it away?

  7. #307
    Senior Member efwd's Avatar
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    Default Re: Joe Ruscito's Kitfox S7 Build

    That's one way to look at it. It was only recommended to start this way. The next move is then to increase the heavy side. It was a bubble level that established the washout initially, so I think to start with a little reduction first isn't bad advice. You probably won't go to the opposite side anyhow. Unless you want to determine which wing it is that has that fraction of a degree too little or too much, your kinda stuck starting someplace. Any place.
    Eddie Forward
    Building
    SS7, 912iS, Garmin G3X

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