Su-30 V4 “Hovering Parkjet”

Discussion in 'Scratchbuilding!' started by RCPowers, May 15, 2014.

  1. bogusbandit56

    bogusbandit56 Top Gun

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    I built the SU30 yesterday and have the spackling and sanding to finish YUK, I hate spackling and sanding. Well hopefully when that is done I will be installing a variable camber airfoil with fronterons linked to flapperons controlled by a potentiometer and no KF step. Should be interesting:) Oh and if your wondering what is it sitting on , that is my electric trike I use for getting about my home town cos it`s impossible to get anywhere in a car.
     

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  2. Airflow

    Airflow Top Gun

    Sounds Great Ian! What kind of variable camber AF are you going to use? There are so many solutions...

    [​IMG]
     
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  3. bogusbandit56

    bogusbandit56 Top Gun

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    Nothing that sophisticated, I was thinking linked slats and flaps, I suppose it should be call a variable lift plane really.
     
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  4. Heat

    Heat Ace Pilot

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    Flew my X-30 (modified SU-30) on Saturday. After launch it went perfectly straight with only a slight right roll trim and the aircraft performed perfectly. I was using my power Suppo 1800KV motor with 3 different propellors throughout the day. I expended 5 batteries and of the 3 propellors, the 8X5 Master Airscrew cut down to a 5.5X5 gave me the best speed. It hit about 60 MPH. Next, I will install the RCX Motor from myrcmart.com. I expect around 90-100 MPH. The larger wing area made for some very fast maneuvers and a snap loop in about 3 square feet. The Cobra maneuver is the best of any aircraft I have tried. What a blast. 20150801_063050_resized.jpg
     
  5. DavePowers

    DavePowers Administrator

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    That looks really cool Heat!
    How are you liking the angled tails?
     
  6. Slingshot

    Slingshot Ace Pilot

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    Great work bb56, and Heat! :)
     
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  7. Heat

    Heat Ace Pilot

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    I have noticed turning I lose very little altitude at all even without elevator input. I also noticed it seems as stable as the SU-30 even though I removed the ventral fins in the back. The biggest difference to me is the wing area and wing loading. While I am going to add rudders for high alpha, this plane floats similar to the SU-34. Basically, I melded a US fighter and Russian fighter into one. When I replace this motor with the RCX, I will see how fast it really goes. Having a blast with modifications.
     
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  8. Heat

    Heat Ace Pilot

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    What was really cool is my brother brought his SU30 out (grey and orange on the end of the table) so we can see the differences.
     
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  9. DavePowers

    DavePowers Administrator

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    That is so cool. I love the mods, always learning a little something.
    Anyway, it looks really cool.
     
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  10. bogusbandit56

    bogusbandit56 Top Gun

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    A quick up date on the SU30 variable camber wing .One servo controls both control surfaces. You may notice in picture 3 that an airfoil reversed is not much use until you turn the plane upside down and then you have lots of lift , inverted picture 4.. SU30 VCW 001.jpg SU30 VCW 002.jpg SU30 VCW 002.jpg SU30 VCW 003.jpg SU30 VCW 004.jpg I seem to have to many photos:)
     
    Last edited: Aug 5, 2015
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  11. Airflow

    Airflow Top Gun

    Super nice Ian! It's going to be a very versatile aircraft, slow/fast and highly manoeuvrable!
     
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  12. bogusbandit56

    bogusbandit56 Top Gun

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    I bet I do something stupid and crash as soon as I mess with the airfoil:)
     
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  13. Heat

    Heat Ace Pilot

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    Hope not, I really want to see how it functions.
     
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  14. Ian, Would love to hear back on how all these different configurations perform, pretty neat setup!
     
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  15. Airflow

    Airflow Top Gun

    No, take it step by step,,, ;) start to mess with it later! Make yourself familiar with it, and take a few flights with the control surfaces in neutral position so the wing remains flat.
     
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  16. bogusbandit56

    bogusbandit56 Top Gun

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    I concur with you . I have set in motion a plan to activate the camber via the flaps switch which can be slowed right down and limited via a potentiometer. I have been toying with the idea of controlling each wing seperately via the rudder stick to give an aileron effect but what would happen once the airfoil goes inverted?
     
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  17. bogusbandit56

    bogusbandit56 Top Gun

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    Me too:) Thanks.
     
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  18. bogusbandit56

    bogusbandit56 Top Gun

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    Thanks malukk, I still have quite a bit to do before it is in the air, plus I have to contend with the British weather, the winds have died down a little and it has now started to rain:(
    Whatmovesyou has given me some info on throttle mixing to control airfoil shape. I think this project has a great deal of potential in flight characteristics and for crashing:) I am going to have to employ a camera man to get some video when it is flying.
     
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  19. Airflow

    Airflow Top Gun

    Exactly what happens ...
    I've been thinking about running the leading edge slats through the same channel as the canards on my second MIG '288
     
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  20. bogusbandit56

    bogusbandit56 Top Gun

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    I sometimes think I wish I was a speed freak , just happy putting bigger motors in. The thought of all these mixes with so many control surfaces is going to take me into a realm of which my limited mixing abilities will become a problem:) I suppose somewhere in the world all of this has been done and documented, but the fun is finding out for ourselves, isn`t it?
     
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