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3 Answers

Which light airplanes uses trim tabs, balanced tabs and anti servo tabs?

Asked by: 5249 views , , , ,
Aircraft Systems, Student Pilot


Cessna 152/172


Cirrus SR2*



Can anyone tell me what which planes uses what tabs?

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3 Answers

  1. Gary Moore on Mar 15, 2012

    You could probably check the Airplane manuals – i’m sure most of them are available online….

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  2. Brian on Mar 16, 2012

    Typical, an elevator system will use a trim tab. (The Cessna & Cirrus) Typically, a stabilator system will use an anti servo tab. (The PA28/44)
    As for balance tabs, I don’t believe any of these aircraft do; though I am uncertain regarding the Cirrus. Do note, however, that the purpose of a balance tab is to give what is considered a satisfactory flight control feel for the pilot. On a stabilator system, the anti servo tab serves this purpose. 

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  3. Dave M on Mar 29, 2012

    The Cirrus doesn’t use trim tabs.
    From the SR20 POH:
    “Pitch Trim Control SystemAn electric motor changes the neutral position of the spring cartridge attached to the elevator control horn.”
    So adjusting the trim causes a spring to change the angle of the elevators.

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