Question

What is/are the functions of the swashplate? which is/are right below:
It acts as a transmission between the shaft and the rotor.,
It controls the angle of attack of the rotor blades collectively.
It controls the angle of attack of the rotor blades individually.
It controls the velocity distribution over the blades.

Answer 1

All of the given options are correct functions of the swashplate:

- It acts as a transmission between the shaft and the rotor. The swashplate converts the rotary motion of the main rotor shaft into the up-and-down motion required to control the rotor blades.
- It controls the angle of attack of the rotor blades collectively. By tilting the swashplate, the angle of attack of all rotor blades can be simultaneously adjusted, allowing for collective pitch control.
- It controls the angle of attack of the rotor blades individually. As the swashplate tilts, it also allows for individual adjustment of each rotor blade's angle of attack, enabling cyclic pitch control.
- It controls the velocity distribution over the blades. By manipulating the swashplate, the pilot can alter the pitch and angle of attack of the rotor blades, which affects the distribution of airflow and therefore the velocity distribution over the blades.