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  1. Replies
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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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    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.
    ...
  11. Replies
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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
    ...
  12. Replies
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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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    One of my vessel tasks in Sitka during the 1969...

    One of my vessel tasks in Sitka during the 1969 herring season was to tow a herring pound net out to sea. Several large sea lions had broken in and drowned in the wrapped up netting. I made it a few...
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    Cessnas? Who knows and there's no warranty. The...

    Cessnas? Who knows and there's no warranty. The Citabria and Cub I had liked it and rolled away from the spill plated flap but again it's all an experiment.

    Gary
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    Tow to sea - call military needing munitions...

    Tow to sea - call military needing munitions practice - feed fish.

    Gary
  22. Replies
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    After you perfect your flap fairing try...

    After you perfect your flap fairing try installing end plates on the flaps for added lift.
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    Happens. It'll be a Full Moon in a couple of days...

    Happens. It'll be a Full Moon in a couple of days and waterskiing is fun.

    Gary
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    Today with RNAV (GPS) Approaches and the right...

    Today with RNAV (GPS) Approaches and the right setup no need to worry. Even my Garmin 660 works good enough for that. I never cared for flying VFR on top much over terrain before all of today's GPS...
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    Looks good in Alaska Gordon. Like the Old Timers...

    Looks good in Alaska Gordon. Like the Old Timers did just pull up the nose and then spin'er down through the undercast.

    Gary
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