FRCFoamies F22 Raptor- Scale Score and Fold

Discussion in 'FRCFoamies Plans' started by F1wanabe, Dec 20, 2015.

  1. bimoadiprakoso

    bimoadiprakoso Top Gun

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    Niiiiiccceee! :) Jay is a genius RC designer for sure. I'm always amazed by the details of FRC's planes.
     
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  2. Airflow

    Airflow Top Gun

    Yes it flies really good, nicely done malukk!:)

    I have now seen both of your latest videos (FRC F-22 and RCP Su-27SS) What do you recommend to build? in terms of flight characteristics, not the appearance.
     
  3. F1wanabe

    F1wanabe Administrator

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  4. Well Lars, you will have to build both :p because they both are really good fliers...

    SU27 is very maneuverable and stable given its not too windy and is a lot of fun... It also does more things (like rolls and inverted) better than the SU-34v4 including loops in my opinion. The [small] rudders esp. on it are great as it doesn't really roll the plane over like other jets but is sensitive enuf for high-alpha... So this is highly recommended...


    F22 is also a lot of fun to fly and is PERFECT candidate for your modifications :p because in my opinion its the BEST rear mount flying jet out there... This plane is very forgiving and generates a ton of lift coz of the scale fuse-cover/skin and without any airfoils...
    Slows down very well with flaps setup on this... I can only imagine you scaling this up and putting your powerful motors on the elevators - it would be very aerobatic and will also float very nicely! This would be a lot of fun!!

    Cant wait to see you build them both :)
     
  5. Airflow

    Airflow Top Gun

    Haha, that was the answer I expected actually, to build both!
    Thanks malukk for the nice review of them.:)
     
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  6. Greg, Have you or anybody else tried using a 1200kv motor with a 8-9" prop or a 7 x 3.5 x 3 prop on this plane? Wondering how it does with this setup?
     
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  7. F1wanabe

    F1wanabe Administrator

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    I have not only because the larger prop can give you more thrust but also leads to more torque roll. If I were to try that, I'd go with a wsf prop that would minimize torque roll. But it would also limit speed! But, why not try?

    www.frcfoamies.com
    www.youtube.com/user/gstrysky
     
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  8. kenswa

    kenswa Cadet

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    Okay, so flew my F22 for the second time this past weekend. Flew well, it was a little windy and still getting use to it, but it is very stable and flies real slow. Here is my second video. Hopefully there will be more videos later. Perhaps some in formation with my friend Keith.

     
  9. F1wanabe

    F1wanabe Administrator

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  10. DavePowers

    DavePowers Administrator

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    Yeah kenswa, that looks really scale up in the air. Very cool man.
     
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  11. Boxermad84

    Boxermad84 Administrator

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    I think this is the longest time I've taken to get a plane in the air, I cut this out over Christmas! Finally got the maiden done and it's amazing! Love how scale it looks and flys, floats really well to and handles the wind!
     
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  12. bimoadiprakoso

    bimoadiprakoso Top Gun

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    Nice and scale Jay!

    Sent from my LG-F320K using Tapatalk
     
  13. DavePowers

    DavePowers Administrator

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    Yeah, really good Jay. This F-22 is above average stable at slow speeds looks like?
    What have you noticed with flying it slow?

    Hey, so I've always been unhappy how the average F-22 loses it's stability at slow speeds.
    The verticals being blocked from the bottom in high alpha is what I narrowed it down to...
    Been trying to think of solutions to give an F-22 stability at slow speeds/high alpha.
     
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  14. DavePowers

    DavePowers Administrator

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    Looking at your plane flying here I see these factors that may be giving it more stability at high angles of attack:
    1) The fronterons are moving cleaner air over the wing and therefore the tail?
    2) Taller than stock verticals. Looks like you guys might have made these quite a bit bigger to grab more fresh air.
    3) The fuse on the bottom runs all the way back. The air might be grabbing onto those and "locking in" some?
    4) And the prop in the back causes alot of drag, like a small parachute... This could be keeping the tail from moving around.
    Anyway, got me thinking here. You're up close flight demos really show alot. Heck of F-22 man.
    frcf22.png
     
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  15. Boxermad84

    Boxermad84 Administrator

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    Yes, yes, yes and yes! Fronterons are starting the story, then I'm positive that scale smooth body is keeping the air laminated to itself, the larger than scale verticals are grabbing hold of more air and the rear prop is drag like you said but all so pulling air from around the body, there for helping to keep air laminated as close as possible keeping it stable. That's my theory anyway!

    Sent from my SM-N9005 using Tapatalk
     
    Last edited by a moderator: Apr 21, 2016
  16. F1wanabe

    F1wanabe Administrator

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  17. Boxermad84

    Boxermad84 Administrator

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    Erm, I don't know?

    Sent from my SM-N9005 using Tapatalk
     
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  18. bimoadiprakoso

    bimoadiprakoso Top Gun

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    Sent from my LG-F320K using Tapatalk
     
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  19. Boxermad84

    Boxermad84 Administrator

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    Am I back

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  20. Boxermad84

    Boxermad84 Administrator

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    no im not on tapatalk????????
     
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