Aileron and elevator are activated via which mechanism?

Aileron and elevator are activated via which mechanism?

• A. Push rods
• B. Hydraulic actuators
• C. Electronic actuators
• D. Pneumatic cylinders

Answer: (A)

Primary flight controls are connected to the surfaces with a direct mechanical linkage using push-pull rods. When you move the control stick, these rods transmit that motion along to the ailerons for roll and the elevator for pitch through bell cranks and control horns. This setup provides instant, proven control response and is standard on the DA20-C1. Hydraulics would require a hydraulic system and fluid lines, electric or electronic actuators would imply a fly-by-wire or electric system, and pneumatic cylinders would need a compressed-air setup—none of which are used for the primary controls on this airplane.

Primary flight controls are connected to the surfaces with a direct mechanical linkage using push-pull rods. When you move the control stick, these rods transmit that motion along to the ailerons for roll and the elevator for pitch through bell cranks and control horns. This setup provides instant, proven control response and is standard on the DA20-C1. Hydraulics would require a hydraulic system and fluid lines, electric or electronic actuators would imply a fly-by-wire or electric system, and pneumatic cylinders would need a compressed-air setup—none of which are used for the primary controls on this airplane.