Are cyclic and collective control inputs independent of each other?

• A. No
• B. Yes
• C. Sometimes
• D. Only in manual mode

Answer: (B)

The idea being tested is that, in rotorcraft controls, cyclic and collective operate on two separate aspects of the rotor system. The collective changes the pitch of all rotor blades together, which increases or decreases overall lift and, therefore, vertical speed. The cyclic changes the pitch distribution as the blades rotate, tilting the rotor disk to produce forward, backward, or sideways motion. Because these inputs affect different parts of the rotor’s behavior, you can adjust your direction with the cyclic without changing lift, or change altitude with the collective without steering unintentionally. In practice there can be some small aerodynamic interactions, but the control system is designed so the inputs remain independent, allowing precise and separate control of climb/descent and direction.

So, the best answer is that they are independent. The other options imply some dependence or mode-specific behavior that isn’t how these controls are designed to function.