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Help!! PLZ do not upvote

14.9k NumNumz  8.5 years ago
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Auto Credit Based on NumNumz's F-16 SNEAK PEEK!!!

Please don't upvote, unless you have actual advice to type in the comments. It keeps rolling left because of the back fins being angled down 10 degrees, even though the plane is syymetrical. When the fins are angled flat, the problem doesn't happen, but an F-16 has fins angled down at the back, so this needs to work like this. I've already tried making the fins normal size, and no dice. If it helps, maybe the fact that they don't mirror properly has something to do with it, but I don't know. PLZ HELPZZZ!!!!

General Characteristics

  • Predecessor F-16 SNEAK PEEK!!!
  • Created On Windows
  • Wingspan 23.1ft (7.0m)
  • Length 35.8ft (10.9m)
  • Height 11.7ft (3.6m)
  • Empty Weight 9,126lbs (4,139kg)
  • Loaded Weight 10,190lbs (4,622kg)

Performance

  • Power/Weight Ratio 3.308
  • Wing Loading 45.7lbs/ft2 (223.1kg/m2)
  • Wing Area 223.0ft2 (20.7m2)
  • Drag Points 3629

Parts

  • Number of Parts 84
  • Control Surfaces 7
  • Performance Cost 352
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  • Profile image
    14.9k NumNumz

    @Dipper THANK YOU!!!! SSSOOOOOO MUCCCH!! You have no idea how frustrating this was!!!!!! I can't beleive I missed it, but I'll give you credit once I release the final :3

    8.5 years ago
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    28.3k Dipper

    I was wondering why it happens until I saw this post, and I figured out the cause. The airfoil of the vertical fin should be "symmetric", not "flat bottom".
    Because of this, the airplane keeps yawing right. Then air stream comes from left side of the airplane, so right fin goes up, left fin goes down. As a result, the airplane keeps rolling left.

    8.5 years ago
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    14.9k NumNumz

    @RMark1 Thanks! check out the completed mobile version link

    8.5 years ago
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    12.0k DALS

    I had the same problem when making my F-16 I wanted to make the fins thin and angled but every time it would not manuver properly and it would always roll. You will need to use wing for the fins, not structure parts. You can borrow my fins from my falcon and you will see the difference. Here's the link again to my falcon.

    https://www.simpleplanes.com/a/1EZzN7/F-16C-Falcon-V-2-General-Dyncamics-Mission-to-10K-Points

    8.5 years ago
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    18.2k Ironghost

    Try to increase the wing area, and reduce the degree of rotation of all-moving stabilizer

    8.5 years ago
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    5,850 GALM1
    8.5 years ago
  • Profile image
    14.9k NumNumz

    @RMark1 well, at first I thought it was just because I changed the scale and rotated it using xml modding. But then I tried it with regular wings and the dyhedral option, and the bug is still present????

    8.5 years ago
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    An F-16 also has flyby wire to correct the rolling to the left that happens, without pilot imput.

    8.5 years ago
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    14.9k NumNumz

    @WeeBabySeamus @AndrewGarrison Any tips from the developers??

    8.5 years ago