FRCFoamies Highlander STOL Plane

Discussion in 'FRCFoamies Plans' started by F1wanabe, May 23, 2016.

  1. TomMonton

    TomMonton Administrator

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    Nice work guys.

    I appreciate the added documentation and dialog on what you've done/doing .... this is good to see.

    ...and enlightening. :)
     
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  2. Airflow

    Airflow Top Gun

    Haha, it would be a nice bonus!;) malukk
     
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  3. TomMonton

    TomMonton Administrator

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    I am yet going to build a removable wing. Like was done on the explorer using rubber bands to secure it down. It will be connected with a small six pin mpx connector.

    Reason being I could build and experiment with the different wing shapes/style and ideas that come through the thread.
     
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  4. Airflow

    Airflow Top Gun

    Time for the wing ribs, 10 of them. Out of 2 mm Balsa.
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]




    The 10 wing ribs in place along with the 6mm front spar.
    [​IMG]





    The 10 wing ribs in place along with the front spar.
     
  5. Tom, I thought of the removable wing too but given its design I did not go for one!

    Although, my recommendation as I was building this plane would be to go with nylon bolt and blind nut instead of the rubber band method... This design is perfect for nut/bolt attachment...
    I did it on my RCP Icon A5 and it works fantastic even better than the rubber bands...
    Moreover, I think Jay and Greg have very carefully thought out design wise on aligning things like rudder, elevator and esp. The wing by including those notches so it would be very easy to do a removable wing too!
     
    Last edited: Aug 25, 2016
  6. TomMonton

    TomMonton Administrator

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    Same approach here. I tried one with my idea on the first build. It held "some" merit but was still not entirely the answer.

    Jay and Greg had blended a few more things and my second build was done to the letter.

    Honestly the released plan does fly a little slippery'r (if that's a word) and it does a much better job at holding a track in the turns. Now slower approach speeds are not nearly as touchy to hang onto.

    Hint: you do need to power through your entire landing. I had developed this bad habit from belly landing that I was constantly tumbling over myself at touch down. I had to continually remind myself "don't do a throttle chop ..... don't do a throttle chop".


    I pulled through
     
  7. Ok, so here is what I have for mixes:

    1) FLAPERONS: both flaps and ailerons work together as ailerons...

    2) FLAPS: only the inside flaps are activated and they stop functioning as ailerons, however, ailerons are still working

    3) FULL FLAPS: Both flaps and ailerons go down as flaps, however, ailerons are still able to function.

    4) Outside FLAPS:: I had this mix in there just because I want to try it out... Here the ailerons go down as flaps but all surfaces are still able to work as ailerons

    I better remember all those mixes before flying... :p

    Here's a video of everything in action:

     
  8. Yes! That was my take too just by watching everyone's videos so far...
    That is why I believe that my third mix (FULL FLAPS) as mentioned above would give me maximum lift at very slow speeds as I am converting the wing kinda into a "under-cambered" wing... We'll see how it goes...
    Maiden is scheduled for Saturday...
     
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  9. BTW, I was so impressed by Jay's video, I told myself that I have to build this one and try it out! lol :D
     
  10. TomMonton

    TomMonton Administrator

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    Nice.

    I did a joined flap and aileron mix only I attenuated the flap movement about 2:1 aileron.

    Run mode is flaperons on both flaps/ailerons around 10-20%. Depending on your linkage travel...yadda..yadda.

    Initiating Flaps.. I pitch flaps down about 45° at a static value and ailerons still holding the flaperon mix and of course fly the plane.

    You may need to add a squirt of up elevator because too much drag wanted to pull the nose down.

    ...boy does she climb nice with flaps.

    Then no trim at all if you want to just soar around parting the air.

    So yeah... three flight modes essentially
     
  11. whatmovesyou

    whatmovesyou Top Gun

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    What radio do you have?
    Are there 4 servos for the wing where it is config 2 aileron and 2 flaps?
     
  12. TomMonton

    TomMonton Administrator

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    I run opentx on a taranis.

    I am running that to a 8 channel RX connected to 6 servos and one speed controller. I still have one channel left for something.

    Four in the wing and two more servos for the tail.

    Malukk mentioned he is running on a futaba system.
     
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  13. Yes, 4 servos on wing with 2 aileron + 2 flaps settings on Futaba
     
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  14. I am guessing the CG is right on center of spar or a little behind?
     
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  15. Airflow

    Airflow Top Gun

    Today's work.

    Folding and UHUing the skin panel around the wing, in one step.
    A sort of rationalization. Skin panel in one piece instead of several, making the wing more rigid and saves time.

    [​IMG]

    [​IMG]


    Done.
    Two wing tip opportunities. One: the usual.

    [​IMG]


    And Two, THe FRC stock. Anti tip stall design.
    [​IMG]
     
  16. Boxermad84

    Boxermad84 Administrator

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    Just slightly forward of the foam spar will be perfect for the maiden, adjust cg to your flying style after.

    Sent from my SM-N9005 using Tapatalk
     
  17. Ok, thanks!
     
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  18. Boxermad84

    Boxermad84 Administrator

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    Very nice lars, this will be interesting to see the end result!

    Sent from my SM-N9005 using Tapatalk
     
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  19. Airflow

    Airflow Top Gun

    eh.. Hehe.. Jay, I'm nervous already! Haven't flown any top winged airplane (Piper cub style) since the T-180 in the 90's lol...
     
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  20. TomMonton

    TomMonton Administrator

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    Like riding a bike my friend. A couple of wobbles to find it and you're on your way.

    I like the wing....
     
    Last edited: Aug 26, 2016
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