In general transport aeroplanes with power assisted flight controls are fitted with an adjustable stabilizer instead of trim tabs on the elevator. This is because:

Question

Question ATPL - Airline Transport Pilot license - Principles of Flight

QuizVDS · Accepted Answer

Effectiveness of trim tabs is insufficient for those aeroplanes

QuizVDS · Answer

The pilot does not feel the stick forces at all

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Trim tab deflection increases Mcrit

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Mechanical adjustment of trim tabs creates too many problems

Id 170 - ATPL - In general transport aeroplanes with power assisted flight controls are fitted with an adjustable stabilizer instead of trim tabs on the elevator. This is because: