Which term refers to the action that changes blade pitch around the feathering axis?

Which term refers to the action that changes blade pitch around the feathering axis?

• A. Feathering
• B. Feathering Axis
• C. Disk Loading
• D. Dynamic Rollover

Answer: (A)

Feathering is the action of rotating each rotor blade about the feathering axis to change its pitch. By adjusting the pitch, you set the blade’s angle of attack, which determines how much thrust or drag the blade produces. The feathering axis is the line about which this pitch-change movement occurs, so describing the action as feathering directly identifies what happens to the blade. The other terms don’t describe the act of changing blade pitch around that axis—feathering axis names the axis itself, while disk loading and dynamic rollover refer to other rotor and flight concepts.

Feathering is the action of rotating each rotor blade about the feathering axis to change its pitch. By adjusting the pitch, you set the blade’s angle of attack, which determines how much thrust or drag the blade produces. The feathering axis is the line about which this pitch-change movement occurs, so describing the action as feathering directly identifies what happens to the blade. The other terms don’t describe the act of changing blade pitch around that axis—feathering axis names the axis itself, while disk loading and dynamic rollover refer to other rotor and flight concepts.