StacksVerified U.S. regulatory reference

14 CFR §27.771

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
For each pilot compartment—
  1. (a)The compartment and its equipment must allow each pilot to perform his duties without unreasonable concentration or fatigue;
  2. (b)If there is provision for a second pilot, the rotorcraft must be controllable with equal safety from either pilot seat; and
  3. (c)The vibration and noise characteristics of cockpit appurtenances may not interfere with safe operation.