Profile image

why does my plane rol over to the left/right?

10.1k Milo1628xa  7.7 years ago

i have sometimes that when i make a plane, it keeps rolling to the left or right without anything wrong with the plane ( center of thrust in middle, center of lift in the middle and behind center of mass, center of mass in middle) can anyone help me with this issue? thnx.

  • Log in to leave a comment
  • Profile image
    270 Cai22267

    yea I took them off because it would tilt far to much

    21 days ago
  • Profile image
    10.1k Milo1628xa

    @Cai22267 there were no flaps thus far i could figure out

    23 days ago
  • Profile image
    270 Cai22267

    I used to have flaps on it and when I put my flaps down it would roll the other way

    24 days ago
  • Profile image
    10.1k Milo1628xa

    @Cai22267 i gave it a spin, i didn't remove the cockpit bit there might be a slight rolling to the left when flying, barely noticeable, but when you use your airbrake the plane rolls to the right, it's probably better to use an airbrake hidden in the fuselage instead of a wing inside the visual airbrake. other than that idk what would cause the rolling.

    25 days ago
  • Profile image
    270 Cai22267

    its just the su-27 on my account

    27 days ago
  • Profile image
    10.1k Milo1628xa

    @Cai22267 can you send me the plane so i can take a look?

    27 days ago
  • Profile image
    270 Cai22267

    @Milo1628xa I have done all that but it doesn't change anything

    28 days ago
  • Profile image
    10.1k Milo1628xa

    @Cai22267 have you looked into whether everything that is mirrored onto the other side of the plane has the same attachment points? if that's not it you can try looking into whether all the parts have similar drag , if that's uneven across the plane then that explains the turning, else if there are parts on one side of the plane but not the other, the centre of weight won't be in the middle of the plane, causing a rolling motion.

    28 days ago
  • Profile image
    270 Cai22267

    I am having the same problem and if I took the cockpit out it would roll to the left but if I have the cockpit in, it rolls to the right I don't understand it.

    one month ago
  • Profile image
    10.1k Milo1628xa

    @SMILEE yes i ment that haha, i always make my own custom cockpits, but thanks regardless :D

    +1 2.7 years ago
  • Profile image
    30 SMILEE

    @Milo1628xa no problem buddy, but don't forget it's the cockpit part, not the whole cockpit

    2.7 years ago
  • Profile image
    10.1k Milo1628xa

    @SMILEE i never had any issues with my plane rolling due to what size i made my cockpit, so if this happens now, thanks for letting me know :D

    +1 2.7 years ago
  • Profile image
    30 SMILEE

    hey man, a while ago I found out that this happens because of the size of the cockpit, the cockpit part itself, if you increase its size your plane will probably be stable

    +1 2.7 years ago
  • Profile image

    Thanks I’ll check that right now @Milo1628xa

    2.9 years ago
  • Profile image
    10.1k Milo1628xa

    @Soardivision160th 9 out of 10 times it's the attachment points, you gotta make sure those are all the same all around the craft... (if possible) and if that won't work i check out the drag for each part and just turn off the drag for symmetrical parts with different drag points

    2.9 years ago
  • Profile image

    I don’t know if you figured this out, my homeland security helicopter, using rotor blades that have vtol nozzles attached to them, and the rotors tilt by rotators, yet It wants to fly to the right, everything is symmetrical, I have to fly to the left to fly straight I’m looking all over for help.

    I don’t want to get rid of the rotor blades because I have more control over the chopper and it’s more realistic.

    2.9 years ago
  • Profile image

    Its cuz ur pressing d/a, lol

    4.4 years ago
  • Profile image
    10.1k Milo1628xa

    @ChiChiWerx, ive seen this attachment issue many times, but never looked at rolling motions causing it, ill keep an look out on it, ty for your help.

    7.7 years ago
  • Profile image
    30.4k ChiChiWerx

    None of what's below is correct; I build many aircraft which are slightly asymmetrical (i.e., cannon or refueling probe on one side but not the other). The primary reason why this happens is that when you place fuselage blocks on one wing (to add details or to "build up" the wing into a realistic profile), then nudge and mirror, the mirroring spawns a new fuselage piece onto the other wing, but not necessarily attached to the opposite attachment point. It usually picks the closest attachment point to the new position, while the original side stays attached to the original attachment point. This often creates a significant rolling motion. The only way to cure this is to detach everything off the wings and then to manually reattach everything, taking the time to ensure everything is attached symmetrically. It actually sounds a lot more difficult than it actually is. If you want to read more about this, here's a link. If you have further questions, let me know.

    +7 7.7 years ago
  • Profile image
    10.1k Milo1628xa

    @randomusername ty for your help, this has been bugging me for a long time so ty.

    7.7 years ago
  • Profile image
    10.1k Milo1628xa

    i now have a feeling that it has to do with things that stick out of the plane like weapons but im not sure.

    7.7 years ago
  • Profile image
    10.1k Milo1628xa

    @jamesPLANESii the airfoils on all the wings r the same and the wings r all mirrored to eachother

    7.7 years ago
  • Profile image

    Centre of lift off centre? One of the wings has a different aerofoil to the one on the other side?

    7.7 years ago