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  1. Replies
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    Send me a personal mail here with yours attached...

    Send me a personal mail here with yours attached and I'll directly forward a PDF copy of mine. Not starting an oil thread but what you use is ok but the manual also approves multi-viscosity options....
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    Rudder tab...I got one for floats. Doesn't take...

    Rudder tab...I got one for floats. Doesn't take much bend. I checked everything I mentioned above on my EDO 1320's and Taylorcraft and it's as square as I can make it. The vertical stabilizer is...
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    Just wondering what was making it fly off center...

    Just wondering what was making it fly off center and yaw left. Most folks put up with it and it's good you chose not to. Something made the change from wheels to floats.

    Gary
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    If interested why did it fix? Why was a trim tab...

    If interested why did it fix? Why was a trim tab needed? Most don't Gi-a-sh't.

    Gary
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    "Also make sure the float rigging and barrels...

    "Also make sure the float rigging and barrels aren't bent or twisted" I mentioned this above for a good reason. Once assembled they rarely get rechecked for square and parts fit. Just a quick...
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    For personal use I like to level the wings to...

    For personal use I like to level the wings to floats with the front float cross wires. That assumes the wing dihedral and washout is correct for each side and tie down ring not bent. Then I center...
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    I had one Sensenich on a plane with no prior...

    I had one Sensenich on a plane with no prior records. We estimated the use from the plane's TT logs and approximate prop manufacturing date (S/N based - assumed it was installed that day). Sent it to...
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    Sometimes it's good to step back and fly the...

    Sometimes it's good to step back and fly the stock plane enough to note any changes mods later make. As built Cubs are a fine airplane...not sure of the exact % but surely 3/4 or more as good as one...
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    I went from a stock PA-11 tail (unbalanced...

    I went from a stock PA-11 tail (unbalanced elevator) to a PA-18 stab/elevator when I installed flaps. It's heavier but I felt mo better for control especially when slow - plus its part of the flap...
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    Did you make any changes to the tail...like seals...

    Did you make any changes to the tail...like seals or increased surface area as a companion to the slats at very slow speeds?

    Today we have LE devices like slots, slats, VG's, and cuffs. I had a...
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    792

    Yes Charlie others were tested before any of the...

    Yes Charlie others were tested before any of the other mods. I tried flat to factory (~2.5* from fuselage center; the 3/8 block technique; one rear turn of the forks at a time while on wheels). I...
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    We've discussed this previously. My goal was...

    We've discussed this previously. My goal was stable slow flight, maximizing lift, and minimizing aileron induced wing tip stall. To test that I incrementally set the wing wash to 1.5*, squared off...
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    I've mentioned before extending the Cub's upper...

    I've mentioned before extending the Cub's upper flap farings over the ailerons. I liked that change and had no adverse effects. Same for rubber elevator and rudder seals.

    Gary
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    The first link shows loss of flow behind aileron...

    The first link shows loss of flow behind aileron slots plus this and that about twisting and LE devices on a Taylorcraft vs stall and AOA. The second is the early plain vs slotted flap analysis.
    ...
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    Fixed above also:...

    Fixed above also: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930091708.pdf

    The wing in question is a 23102 airfoil but the principles still apply to others. The Discussion section...
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    Bellanca later offered aileron and elevator gap...

    Bellanca later offered aileron and elevator gap seals to close those areas. Presumably that improved the maneuvers they promoted as a sales option in the Acrobatic Category. Now think wood spars and...
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    Good idea on the breakout. Oli's experiment will...

    Good idea on the breakout. Oli's experiment will be fun to follow.

    Here's a dupe of the post on slotted flaps and ailerons so it doesn't get lost.
    ...
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    More flap about flaps and ailerons: See page...

    More flap about flaps and ailerons:

    See page 27 on for a discussion: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930091708.pdf
    ...
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    On my PA-18A I attached small metal covers/seals...

    On my PA-18A I attached small metal covers/seals fitted to the curve on top of the flaps over the hinge and pushrod locations. Seemed to help and would slowly roll away from the sealed flap when they...
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    https://www.asias.faa.gov/apex/f?p=100:96:13310790...

    https://www.asias.faa.gov/apex/f?p=100:96:13310790819641::::P96_ENTRY_DATE,P96_MAKE_NAME,P96_FATAL_FLG:18-JUN-19,AERONCA

    Recent local accident w/o injury. Forward mount for the Aeronca 7DC's tail...
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    Always slightly crack the fuel caps when parked...

    Always slightly crack the fuel caps when parked in foreign territory. The curious tend to close them all the way afterwards. Had it happen when locals climb over anything new in sight.

    Gary
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    The different speeds and cutoff rise were asked...

    The different speeds and cutoff rise were asked of me years ago by an old time mechanic. As the carb transitions from idle to main jet flow it can help diagnose if fuel flow is ok. That's all I did...
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    The writing by Gerry Bruder in Post 1053 is very...

    The writing by Gerry Bruder in Post 1053 is very well done. The book is a reprint of an earlier version from the late '80s and reflects flying in SE Alaska from the early 1970's. I've not finished it...
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    Did you later check the rpm rise at mixture...

    Did you later check the rpm rise at mixture cutoff? Try with throttle closed then in 100 rpm increments to about 1400. There's a series of bleed holes that feed during low speed until the main jet...
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    I'm working through this good book on float...

    I'm working through this good book on float flying in SE Alaska: https://www.goodreads.com/book/show/20580200-seaplanes-along-the-inside-passage?from_search=true

    The author goes to length...
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