Which control is listed for trimming on the horizontal stabilizer within secondary flight controls?

Which control is listed for trimming on the horizontal stabilizer within secondary flight controls?

• A. Horizontal Stab Trim
• B. Auto Trim
• C. Mach Trim
• D. Auto Pilot Trim

Answer: (A)

Trimming to hold the aircraft’s pitch is done with a dedicated control for the horizontal stabilizer. The control that trims the horizontal stabilizer is called the Horizontal Stab Trim. It adjusts the stabilizer’s angle to nose up or nose down, reducing the need for constant elevator input and easing pilot workload. This is a secondary flight control, separate from primary surfaces like the elevator, and distinct from automatic systems such as auto trim, Mach trim, or autopilot trim.

Trimming to hold the aircraft’s pitch is done with a dedicated control for the horizontal stabilizer. The control that trims the horizontal stabilizer is called the Horizontal Stab Trim. It adjusts the stabilizer’s angle to nose up or nose down, reducing the need for constant elevator input and easing pilot workload. This is a secondary flight control, separate from primary surfaces like the elevator, and distinct from automatic systems such as auto trim, Mach trim, or autopilot trim.