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Stability issues

11.8k StopBreathingMyAir  2 months ago
16 downloads
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Auto Credit Based on StopBreathingMyAir's UH-55 progress

Since i dont really know how to describe its issue i have to post it

If you know what the issue is with the helicopter, please tell me

General Characteristics

  • Predecessor UH-55 progress
  • Created On iOS
  • Wingspan 48.7ft (14.8m)
  • Length 66.9ft (20.4m)
  • Height 24.4ft (7.4m)
  • Empty Weight 35,688lbs (16,187kg)
  • Loaded Weight 58,309lbs (26,448kg)

Performance

  • Power/Weight Ratio 3.935
  • Wing Loading 229.7lbs/ft2 (1,121.5kg/m2)
  • Wing Area 253.8ft2 (23.6m2)
  • Drag Points 7051

Parts

  • Number of Parts 89
  • Control Surfaces 5
  • Performance Cost 565
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    8,265 Sockdragger

    Ps, currently I am moving the rotor for-and backwards to find the spot where I can at least take off with the helicopter without it immediately flipping tail up or tail down. It is something in the range of z being between 3.3 and 3.4 once I found a good enough spot, I will turn on the gyro again and see how low I can set the values of gyroscopic speed and stability and still have a smooth flying heli with minimal control input just to keep it flying straight

    2 months ago
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    8,265 Sockdragger

    Still fine-tuning the settings but already some findings after the first 5 minutes:
    1) in the editor, you rotated the rotor 70° to the side. Which makes the pitch input work as 1/3 pitch and 2/3 roll and the roll input as 1/3 roll and 2/3 pitch. Just set it to zero and try again. It will make an immediate difference.
    2) you seem to have put 1000lbs of dead weight on all the fuselage pieces. Not only makes this your helicopter obesely overweight, it also makes him completely tail heavy. If you click every fuselage block and set the 'dead weight' back to zero, flying, at least taking off will be a lot easier
    3) for the gyroscope, gyroscopic speed and stability of 1000% is overkill. The aim of a design should be that even an inherently unstable design like a helicopter should be able to function with minimal gyroscope settings. Pitch Range, roll range and yaw power should ideally be set to zero as they make the gyroscope take over tht pitch, roll and yaw instead of the aerodynamic or rotor controls. They are handy for something like floating airbases or hover bikes, but shouldn't really be used in planes and helicopters. That is my personal opinion. However setting the yaw range and pitch range to 180° basically enabled you to flip your helicopter on its back while parked with engine shut down. If you use roll and pitch range, values of 30-45° are the most common design, even for hoverbikes.

    2 months ago
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    I really don’t know. Lemme check once more.

    2 months ago
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    HTL
    @Unwanted

    2 months ago
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    TL2
    @THEOKPILOT
    @BOSSentinel
    @Aero72

    2 months ago
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    TL
    @DeeganWithABazooka
    @SomeGuyWhoMakesMods
    @Halcyon215

    2 months ago