What are the 2 sections of 1st stage mix unit?

• A. Section 1: pitch and thrust; Section 2: yaw and roll
• B. Section 1: yaw and roll; Section 2: pitch and thrust
• C. Section 1: pitch and yaw; Section 2: thrust and roll
• D. Section 1: roll and yaw; Section 2: pitch and yaw

Answer: (A)

Two sections are designed to control different axes of motion. The first section pairs pitch with thrust because both directly affect vertical movement: pitch changes the nose angle and, together with thrust, determines climb rate and climb angle. The second section pairs yaw with roll because those axes govern horizontal orientation and steering: yaw rotates about the vertical axis to steer left or right, while roll tilts the wings to bank for turning. Keeping these functions in separate sections lets vertical behavior (pitch and thrust) be managed independently from horizontal direction and stability (yaw and roll). That’s why pairing pitch and thrust in one section and yaw and roll in the other best fits how a two-section mix unit is organized.