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Trimming a small rubber powered airplane, the Supermax II

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  • čas přidán 9. 08. 2020
  • Full sized plans: jhaerospace.com...
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Komentáře • 56

  • @herbertkuttner9228
    @herbertkuttner9228 Před 8 měsíci

    What can I say Joshua
    You are a natural teacher , I wish when I was young the old timers were great but I am afraid lots of them when they wrote articles on similar subjects with the good intentions of passing on there knowledge but for some reason were not the best teachers they got to technical and it never was very clear to the newbies
    I my book you have a way to get good information across
    Thank you
    Herb

  • @powerhousepaperairplanesrogers

    The way your oldest son keeps throwing those aircraft. He has an arm on him. I can see him being a powerful quarterback someday. Keep up the good work. Great mother and great father. Best team work ive ever seen.

  • @larryjessup266
    @larryjessup266 Před 4 lety +2

    The keys to keep things consistent it's something I've been lacking thank you I will use that for my sport flying

  • @professorgabrielsilvamoura3727

    Incredible your work. I know how difficult it is to build a model. Thank you for the informations.

  • @SmootWoofus
    @SmootWoofus Před 4 lety

    Josh Finn, you're so cool.
    They way you talk about these models.
    You know so much, I'm just getting into this hobby. I look up to you.

  • @joeslife1435
    @joeslife1435 Před 4 lety

    Awesome video Josh. We appreciate you.

  • @Joyplanes
    @Joyplanes Před 4 lety

    Amazing plane!

    • @alfredlebeau3137
      @alfredlebeau3137 Před 4 lety

      Hi bilding other gredet glider to wall this other una as that kain

  • @sandfac3427
    @sandfac3427 Před 4 lety

    That looks like an absolute monster of an Embryo. Still haven’t designed one yet but this is making me want to!

    • @joshuawfinn
      @joshuawfinn  Před 4 lety

      The big things with this one are its lightness and simplicity. Even the front and rear of the fuse are interchangeable, so there are as many duplicate parts as possible. Built with care it's a sub-10g airframe and carries its own weight in rubber, swinging a big, slow prop. Ive actually maxed these launching into sink because the climb lasts over 2 minutes. The glide is pitiful but it's still good for well over 3 1/2 minutes in dead air.

  • @stanburdick9708
    @stanburdick9708 Před 4 lety

    always appreciate your inspiring videos

  • @mithrandir6283
    @mithrandir6283 Před 4 lety +1

    Thank you for the information, this helped me a lot!

  • @shaunbrown8500
    @shaunbrown8500 Před 3 lety

    Great video and good content. You vids keep me motivated when we cant be flying.

  • @Colin399
    @Colin399 Před 4 lety +1

    Great video, one of your best

  • @wdtaut5650
    @wdtaut5650 Před 4 lety +1

    6:47 "You lose a lot of them." In my experience, it is always the good ones I lose.

  • @davidbeem184
    @davidbeem184 Před 3 lety

    I never got these to fly, so cool to see it work

  • @davidfranklin5270
    @davidfranklin5270 Před 4 lety

    Streamer dethermalizer! Yes! I have never seen a wing streamer dethermalizer used like this. But I have used similar devices with model rockets!

  • @jafs0354
    @jafs0354 Před 4 lety

    hello a great job and excellent video very good dethermalizing technique thanks for the explanation I learned a lot, regards

  • @montigobear
    @montigobear Před 3 lety

    Love this stuff. Flew Unlimited rubber at a few of the old Navy sponsored Nat's

    • @joshuawfinn
      @joshuawfinn  Před 3 lety

      I just flew Mulvihill at a contest in Denver. Absolutely loved it!

  • @jafs0354
    @jafs0354 Před 4 lety

    I'm an enthusiastic free flight model airplane, greetings from México

  • @adrielestolano4668
    @adrielestolano4668 Před 2 lety

    Thanks for your wonderful video!
    I am just wondering why outdoor models don't fly with the torque?

    • @joshuawfinn
      @joshuawfinn  Před 2 lety +1

      Outdoor models are pretty rigid, so you don't get a bunch of wing twist creeping in as the torque goes up. As a result, you can fly them very safely to the right, which provides a higher climb rate and prevents them from torquing in to the left anytime things aren't exactly perfect.

  • @johnnydavidauthor
    @johnnydavidauthor Před 4 lety

    Great video - I've never come across this before - very interesting to watch - thank you. Johnny :-)

  • @brianamato1078
    @brianamato1078 Před 4 lety

    jeeze that's lovely

  • @theogmrbill1
    @theogmrbill1 Před 3 lety

    I'm new to getting into rubber band planes. Why put a wick and have it burn the rubberband and have wing pop off? Why not just glide down?

    • @joshuawfinn
      @joshuawfinn  Před 3 lety

      That's so you actually get it back. If you put it in a thermal without lighting that fuse, it's gone forever.

  • @user-gl6kb9pv1d
    @user-gl6kb9pv1d Před měsícem

    How do you design it?

  • @mattluszczak8095
    @mattluszczak8095 Před 2 lety

    Hey bud why is the cg at trailing edge i thought it was allways 1/3 back from the leading edge?

    • @joshuawfinn
      @joshuawfinn  Před 2 lety

      That's what they always tell you, kinda like that textbook crap about the curved top of the wing making the air go faster to produce lift. Reality is that none of it is true. For CG purposes, tail size relative to the wing dictates the optimum CG, as given by this formula: themmmclub.com/wp-content/uploads/2012/11/Tail-Volume-Coefficient.pdf

  • @ravimaal7901
    @ravimaal7901 Před 4 lety

    Plastic pepar how paste it woodn wing stic.. And glu favi qvik??

  • @robertheuer7670
    @robertheuer7670 Před 3 lety

    so you add small parts of wood to trim with no moving control surfaces?

    • @joshuawfinn
      @joshuawfinn  Před 3 lety

      Correct. It's called a Gurney Flap.

    • @robertheuer7670
      @robertheuer7670 Před 3 lety

      I'll be go to hell..thats pretty darn neat..thanks for taking the time to respond!..once i get my guillows 16"ws t-28 covered i will ise this technique 👌

    • @joshuawfinn
      @joshuawfinn  Před 3 lety +1

      @@robertheuer7670 glad to help! That's why we make these videos. :)

  • @nanangjunaidi4603
    @nanangjunaidi4603 Před rokem

    Berapa panjang badan pesawat yang anda buat ??
    Berapa ukuran karet yang anda gunakan ?? Dan berapa lub..??

  • @geebee3d
    @geebee3d Před 4 lety

    With respect to contest endurance models...one must think of the model as a tool, not as an end itself.

    • @joshuawfinn
      @joshuawfinn  Před 4 lety

      I don't know that I'd go quite that far, but I do fully support ending BOM across the board. Its time has come and gone.

  • @ZZ-ns4gg
    @ZZ-ns4gg Před 4 lety

    👍👍👍

  • @MORCOPOLO0817
    @MORCOPOLO0817 Před 4 lety

    I am surprised that the butyrate dope did not warp that delicate structure.

    • @joshuawfinn
      @joshuawfinn  Před 4 lety

      I cheated. Randolph sells non-shrink butyrate. It's awesome stuff!

    • @MORCOPOLO0817
      @MORCOPOLO0817 Před 4 lety

      @@joshuawfinn Does butyrate coated tissue have greater longevity than nitrate doped tissue?

  • @juangonzalez-cg3ic
    @juangonzalez-cg3ic Před 4 lety

    embryo is FAC I think? Who are the last to maintain the bom rule...

    • @joshuawfinn
      @joshuawfinn  Před 4 lety

      Correct on both. My #1 objection to BOM is the number of models that get trashed when people die because their planes can't be flown by anyone else.

    • @geebee3d
      @geebee3d Před 4 lety

      joshuawfinn Is it FAC or AMA that has a proxy/legacy rule, where you are allowed to fly models from the estates of deceased fliers?
      And if there isn’t, there should be.

    • @joshuawfinn
      @joshuawfinn  Před 4 lety

      @@geebee3d AMA deleted the BOM rule for outdoor at least 5 years ago, and NFFS and SAM were quick to follow. The result has been very positive.

  • @stanburdick9708
    @stanburdick9708 Před 3 lety

    why not just use match book shims

    • @joshuawfinn
      @joshuawfinn  Před 3 lety

      It was a convenient way to avoid having any shims at all, for a clean front end. Or in other words, I really am that OCD.

  • @diyborneo88
    @diyborneo88 Před 4 lety

    Second coment, and great video Sir.

  • @carlcrutchfield5094
    @carlcrutchfield5094 Před 4 lety

    💕💕💕💕💕💕💕💕💕