U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 07, 2025

All TitlesTitle 14Chapter IPart 25Subpart B - Subpart B—Flight

GENERAL
§ 25.21 - Proof of compliance.
§ 25.23 - Load distribution limits.
§ 25.25 - Weight limits.
§ 25.27 - Center of gravity limits.
§ 25.29 - Empty weight and corresponding center of gravity.
§ 25.31 - Removable ballast.
§ 25.33 - Propeller speed and pitch limits.

PERFORMANCE
§ 25.101 - General.
§ 25.103 - Stall speed.
§ 25.105 - Takeoff.
§ 25.107 - Takeoff speeds.
§ 25.109 - Accelerate-stop distance.
§ 25.111 - Takeoff path.
§ 25.113 - Takeoff distance and takeoff run.
§ 25.115 - Takeoff flight path.
§ 25.117 - Climb: general.
§ 25.119 - Landing climb: All-engines-operating.
§ 25.121 - Climb: One-engine-inoperative.
§ 25.123 - En route flight paths.
§ 25.125 - Landing.

CONTROLLABILITY AND MANEUVERABILITY
§ 25.143 - General.
§ 25.145 - Longitudinal control.
§ 25.147 - Directional and lateral control.
§ 25.149 - Minimum control speed.

TRIM
§ 25.161 - Trim.

STABILITY
§ 25.171 - General.
§ 25.173 - Static longitudinal stability.
§ 25.175 - Demonstration of static longitudinal stability.
§ 25.177 - Static lateral-directional stability.
§ 25.181 - Dynamic stability.

STALLS
§ 25.201 - Stall demonstration.
§ 25.203 - Stall characteristics.
§ 25.207 - Stall warning.

GROUND AND WATER HANDLING CHARACTERISTICS
§ 25.231 - Longitudinal stability and control.
§ 25.233 - Directional stability and control.
§ 25.235 - Taxiing condition.
§ 25.237 - Wind velocities.
§ 25.239 - Spray characteristics, control, and stability on water.

MISCELLANEOUS FLIGHT REQUIREMENTS
§ 25.251 - Vibration and buffeting.
§ 25.253 - High-speed characteristics.
§ 25.255 - Out-of-trim characteristics.
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