Discussions

How to Limit Roll & Pitch stick movement Angle ?

Posted by Abolo on December 27, 2015 at 10:57am


Hi all ,

I have problem in controlling my plane with the elevator and aileron

when I move to max aileron stick the plane pank with big angle as will as with elevator.

this make the flying hard

I want to know how to Limit the movement Angle for the sticks from the parameter list.

how to control RC stick with limit angle  ?

dose it related to tuning or DIP ?

any information will help


Regards.

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Replies

  • Abolo December 27, 2015 at 1:01pm

    First I am using

    arduplane flight controller
    flying in manual , loiter , stabilizer , and Auto modes.
    GCS is Mission planner .

    I read about doing that function using RC .

    But If it possible to do it in the flight controller parameters will be easy to load it easily any time.

    dose it the same with tuning in mission planner ?

    thanks in advance .

    • Moderator
      Graham Dyer > Abolo December 27, 2015 at 9:33pm

      Is the plane sensitive in FBW-A or just in Manual?

      FBW-A is the mode that checks and tests should be done because the FC uses that mode plus GPS when in any Auto mode

      When you do your radio calibration the FC uses those values in conjunction with the PID's to control the plane, so if your plane is very sensitive then it could be a number of factors:

      - control surfaces too big or too much movement (10-15mm up/down is usually OK) or both

      - the bank and pitch angles are adjustable, eg default roll is 45° but you can set that limit to 25° or whatever so it doesn't roll so far

      - over-correcting by the pilot

      The big thing about using an autopilot properly is to get the plane flying really well in Manual mode, first and foremost, this way the FC doesn't have to constantly try correct a poorly flying plane as well.

      So yes there are FC parameters that can make it better but one shouldn't rely on the FC to fix fundamental problems with the way the plane flies.

      Sensitivity is one of those that needs to be fixed before using the autopilot.

  • Moderator
    Graham Dyer December 27, 2015 at 11:30am

    Most modern transmiters have an EPA function, (End-Point-Adjust), you can limit your throws with that or mechanically by manipulating the servo horn/control surface horn holes.

    You have not given any other information like flight controller used or even if you're flying in a mode so can't say much more than that.

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