FRCFOAMIES SU37 MK2

Discussion in 'FRCFoamies Plans' started by Boxermad84, Mar 17, 2013.

  1. Boxermad84

    Boxermad84 Administrator

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    Wow, love it! That simple paint scheme makes for great visibility!
     
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  2. Looks great, nice job. It's one of my favorite flyers, even handles wind pretty good.
     
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  3. F1wanabe

    F1wanabe Administrator

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  4. kjdubuque

    kjdubuque Ace Pilot

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    It looks great. You think you like it now, just wait until you fly it!
     
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  5. scott0910

    scott0910 Ace Pilot

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    I got a little problem to mount my motor.
    The wood mount is smaller than the bracket as showing on the following picture.
    Could anyone give some suggestions?

    [​IMG]

    The following are my solutions but I don't know whether it can work or not.

    [​IMG]
    [​IMG]
    [​IMG]
     
  6. kjdubuque

    kjdubuque Ace Pilot

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    On my first one, I ran into the same situation. I didn't add a foam backing plate like you're showing and never had an issue. I just epoxied it on, centering it the best I could. Once it was partially cured, I added some small foam pieces on either side of the pieces that hold the magnet. I still do that on all my builds, but add these reinforcement pieces before I epoxy the motor mount on.

    If you add the foam backing plate, just open the prop slot so everything will fit. A lot of guys do this just to give the prop a larger opening of air to run in.
     
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  7. F1wanabe

    F1wanabe Administrator

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    We have a slightly larger mount for our frcfoamies planes and you'll find the template for it on the plan. If I am using an rcpowers mount I just cut that slot 1/4 inch leas than the plan shows. But what you did definitely works!

    www.frcfoamies.com
    www.youtube.com/user/gstrysky
     
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  8. I would personally just cut out a new mount that fits right.
     
  9. Fz1Fazer

    Fz1Fazer Ace Pilot

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    I make the mounting plates always myself, 3mm (1/8") plywood, a holesaw, a saw and a drill, nothing more is needed.
    Normally I make the round chip with an accudrill and a holesaw ( diameter must not be 100% correct, little smaller is ok), then I glue the sketch from the plan with a little woodglue on the chip and do the rest when it's dry.
    I remember one time I tried a mountingplate from banggood to look if it's usable and it was the same like yours.
     
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  10. scott0910

    scott0910 Ace Pilot

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    Thanks you guys for all the suggestions and comments.
    I'm a beginner and don't have experience of flying yet.
    I'm practicing the control to a plane on a PC simulator
    in order to prevent from crashing the plane in a few seconds.
    And that's why I asked this question, because I don't know
    whether this can hold the motor when the motor produces the force and vibration.

    I envy you guys that there are many spacious place in your country.
    I'm from Taiwan. Taiwan is a small island but there are around 23 millions of people living here.
    There are 644 people per square kilometer.
    Most of parks is prohibited flying because of safety and noise.
    I plan to build some quick build planes and take 1~2 hours to drive my car
    to the country side to practice flying.
     
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  11. dangermouse650

    dangermouse650 Ace Pilot

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    Very nice, good luck with the maiden.
    I love the droopy nose shape of this Su, i built one nearly a year ago, still flies although it has a really droopy nose now.:)
     
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  12. falcona

    falcona Cadet

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    Hey everyone,
    Beautiful plane and a really nice experience putting it together. This is my first score and fold plane and I have some questions. I increased the MK2 size plans to 130%, so it measures 48" long and 32" wingspan so its easier for me to see and could support the weight of my mobius camera. With a 2200kv motor, 2200 mah lipo, 30Aesc, and a panning servo mounted mobius camera in the cockpit, and KF4's the AUW is around 900 grams (will officially weigh when finished with last coat of polycrylic tonight). My Ecalc tells me with a 7x4 prop I will get a thrust to weight ratio of .85 and flight times around 9 minutes.

    Any comments or critiques would be appreciated when I maiden this week. Here are some pictures below of it nearing completion and first coat of paint.
     

    Attached Files:

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  13. Lgel

    Lgel Ace Pilot

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    I would reinforce the mount with pieces of flat ice cream sticks epoxied to the foam (I did that on my planes after seing how much the motor mount flexed).

    When dry, try your plane while holding it firmly and empty a battery in this static test, check for vibrations.

    If necessary balance prop (google how to do).

    Cheers.
     
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  14. scott0910

    scott0910 Ace Pilot

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    Thanks for your suggestion.
    But it's too late, I already mounted the motor on the plane before seeing your message.
    I can try your method on my SU-37 No.2.
    [​IMG]
     
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  15. scott0910

    scott0910 Ace Pilot

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    My plane No.1,2,and 3. :)
    [​IMG]
    [​IMG]
    [​IMG]
     
  16. Airflow

    Airflow Top Gun

    Full screen HD just two clicks away at Vimeo
     
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  17. Airflow

    Airflow Top Gun

    A very nice collection you have there Scott, the Su's, one of my absolute favorite plane among the FRC and RCP parkjets.
     
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  18. scott0910

    scott0910 Ace Pilot

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    I can't wait to fly this weekend. Haha...
    I always got the wrong direction to land when the plane fly opposite to me.
    Have any tips to conquer this problem? Or just need more practice?
     
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  19. scott0910

    scott0910 Ace Pilot

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    Have fun this weekend! Haha..
     
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  20. Airflow

    Airflow Top Gun

    That's a matter of practice, I'm dealing with it now, after 5 month on the ground...
     
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