Flight controls.

CFR · 2024-01-01 · US · Title 14

(a) Longitudinal, lateral, directional, and collective controls may not exhibit excessive breakout force, friction, or preload. (b) Control system forces and free play may not inhibit a smooth, direct rotorcraft response to control system input.

official document · source cfr-2024 · id 14:§ 27.151