Which flight controls are hydraulically boosted?

Which flight controls are hydraulically boosted?

• A. Cyclic and collective (not pedals)
• B. Pedals only
• C. All flight controls
• D. None, hydraulics boost is not used

Answer: (A)

Hydraulic boosting provides servo assistance for flight-control surfaces, reducing the effort the pilot must exert. In most helicopters, the cyclic and collective are connected to hydraulic actuators that automatically move the control surfaces to tilt the rotor disk and change lift as you input a command. This makes it easier to hold attitudes, perform precise adjustments, and manage dynamic flight conditions. The pedals, which control yaw by coordinating the tail rotor, are typically not hydraulically boosted in the same way. They are often set up with a direct or separate control path, so the pilot can input yaw without relying on the same hydraulic servo system used for cyclic and collective. So, the controls that receive hydraulic boost are the cyclic and collective, while pedals are not.

Hydraulic boosting provides servo assistance for flight-control surfaces, reducing the effort the pilot must exert. In most helicopters, the cyclic and collective are connected to hydraulic actuators that automatically move the control surfaces to tilt the rotor disk and change lift as you input a command. This makes it easier to hold attitudes, perform precise adjustments, and manage dynamic flight conditions.

The pedals, which control yaw by coordinating the tail rotor, are typically not hydraulically boosted in the same way. They are often set up with a direct or separate control path, so the pilot can input yaw without relying on the same hydraulic servo system used for cyclic and collective.

So, the controls that receive hydraulic boost are the cyclic and collective, while pedals are not.