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Unstable but stable

105k GuyFolk  4.4 years ago

Hi

I was reading something about modern fighter and it said that they intentionally make them somewhat unstable to do maneuvers easily.
And they use fly-by-wire system to compensate for lack of passive stability.(F-16 for example)
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And that make me wondering....
What if I make exactly that.
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This is what happen.

Features:
-fly-by-funky-tree system
-Carrier operational

Controls:
-AG2: Tail hook
-AG8: Toggle fly-by-funky-tree system(It's on by default, try at your own risk)
-trim to trim

ENJOY!!!

Ps. no instant cobra maneuver this time :P I just created this just because my sheer curiosity.
Ps.2 If you ask why would I make this with passive stability and fly just as well without doing code? Well... I'm just kind a guy that make myself a problems just to solve it for fun lol.

Spotlights

General Characteristics

  • Successors 1 airplane(s)
  • Created On Windows
  • Wingspan 30.4ft (9.3m)
  • Length 33.1ft (10.1m)
  • Height 11.4ft (3.5m)
  • Empty Weight 11,383lbs (5,163kg)
  • Loaded Weight 14,534lbs (6,592kg)

Performance

  • Power/Weight Ratio 2.319
  • Wing Loading 66.1lbs/ft2 (322.6kg/m2)
  • Wing Area 220.0ft2 (20.4m2)
  • Drag Points 2354

Parts

  • Number of Parts 57
  • Control Surfaces 5
  • Performance Cost 417
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  • Profile image
    276 elliotjuk

    mr smart guy. is there any way i can improve AOA performance with this statically unstable plane WITHOUT adding canards or adding passive stability? i'm thinking it's at the very limit, but see for yourself if you're bored

    5 months ago
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    The only plane I can guarantee a butter landing on

    6 months ago
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    i will use your canard code

    +3 2.0 years ago
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    105k GuyFolk

    @Khanhlam
    Not exactly the same aircraft.

    2.3 years ago
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    2,101 Khanhlam

    Hey! Is this the jet used in your tutorials?

    2.3 years ago
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    105k GuyFolk

    @WIZARD2017 ok ,I'll help.
    Please check out my Wyvern it is build upon this concept but the code is more complicate and somewhat messier lol.

    4.2 years ago
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    84.3k WIZARD2017

    Thank you. I’ll try. If not working, I will make a unlisted post, hope you don’t mind.@GuyFolk

    4.2 years ago
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    105k GuyFolk

    @WIZARD2017 The proper fix is just edit the Bold number, lower the number the more sensitive they are to correct aoa. The rest is just utility, you can just remove it if not needed.
    (clamp01(Activate8))((((clamp(((Trim / 3)+(Pitch2)/clamp(((IAS/60)+.1),-100,100)),-1,1)) / 2) - clamp((AngleOfAttack / 20),-1,1)-(PitchRate/150))*clamp((IAS-20),0,1))

    4.2 years ago
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    105k GuyFolk

    @WIZARD2017 Well.. That probably your aircraft is way difference than mine, maybe it is too sensitive to high aoa.
    Quick fix is a bigger canard.

    4.2 years ago
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    105k GuyFolk

    @WIZARD2017 lol, ok I'll see what you come up with.

    4.2 years ago
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    84.3k WIZARD2017

    I copied your canard FT code to mine, but it seems not working, can you help my with that?@GuyFolk

    4.2 years ago
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    84.3k WIZARD2017

    Well, I’m not really good at unstable fly by wire.@GuyFolk

    4.2 years ago
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    105k GuyFolk

    @WIZARD2017 Absolutely, but I think your FT is better than mine to begin with.

    4.2 years ago
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    84.3k WIZARD2017

    Can i use your FT code in my new aircraft?

    4.2 years ago
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    387 F40GT

    Ok no joke, this is awesome

    4.4 years ago
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    105k GuyFolk

    @BuiltBionixInd10 @JolyLoly @WIZARD2017 Thanks!!

    @11qazxc Aoa is limited by the funky tree code in the canards (I can't remember exact number :p) ,any higher aoa will risk stalling out or flipping the plane out of control.
    I just limit it's aoa at low speed so it don't stall out in a hard turn.
    Cutting wings does help in higher aoa in a way but the main factor are elevator's power which is more than enough but funky tree won't allow it.

    4.4 years ago
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    6,361 11qazxc

    maybe it is easer to cut wings to fly at high aoa?

    4.4 years ago
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    84.3k WIZARD2017

    This is very nice. I’ll spot this to let more people to see this.

    4.4 years ago
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    super impressive!

    4.4 years ago
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    Lol

    4.4 years ago
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    105k GuyFolk

    @Epickitty
    May be it's super bright afterburner, the way it fly with such high angle of attack, the control surfaces trying to keep it from flipping, man.....those eye-candy lol

    4.4 years ago