What is STAB Trim?

What is STAB Trim?

• A. The STAB Trim adjusts the stabilizer to give the aircraft the best nose up setting for takeoff.
• B. STAB Trim adjusts the throttle
• C. STAB Trim changes landing gear height
• D. STAB Trim is used only during landing

Answer: (A)

STAB Trim moves the horizontal stabilizer to change the aircraft’s pitch moment. By adjusting the stabilizer, the airplane can maintain a chosen pitch with less effort from the elevator control. For takeoff, a small nose-up trim is often set so the aircraft rotates at the right moment and the pilot has lighter elevator forces during the takeoff roll. This trim function is not about throttle or landing gear, and it isn’t limited to landing—trim is used to manage pitch through different phases of flight. So the stabilizer trim is used to provide the appropriate nose-up setting for takeoff.

STAB Trim moves the horizontal stabilizer to change the aircraft’s pitch moment. By adjusting the stabilizer, the airplane can maintain a chosen pitch with less effort from the elevator control. For takeoff, a small nose-up trim is often set so the aircraft rotates at the right moment and the pilot has lighter elevator forces during the takeoff roll. This trim function is not about throttle or landing gear, and it isn’t limited to landing—trim is used to manage pitch through different phases of flight. So the stabilizer trim is used to provide the appropriate nose-up setting for takeoff.