A tab on a control surface of an aircraft that reduces the amount of force needed to move the control surface by moving in the opposite direction.
- After a safe landing, it was found that both elevator spring balance tabs had started to flutter and had torn away.
- The V-tail is all moving with anti balance tabs to provide both trimming and feel.
- When weight is added in each repair, the aircraft's balance may be so disturbed that trim and balance tabs may have to be adjusted.
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