Subpart I. Subpart I—Airplane Performance Operating Limitations

• § 121.171 - Applicability.
• § 121.173 - General.
• § 121.175 - Airplanes: Reciprocating engine-powered: Weight limitations.
• § 121.177 - Airplanes: Reciprocating engine-powered: Takeoff limitations.
• § 121.179 - Airplanes: Reciprocating engine-powered: En route limitations: All engines operating.
• § 121.181 - Airplanes: Reciprocating engine-powered: En route limitations: One engine inoperative.
• § 121.183 - Part 25 airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative.
• § 121.185 - Airplanes: Reciprocating engine-powered: Landing limitations: Destination airport.
• § 121.187 - Airplanes: Reciprocating engine-powered: Landing limitations: Alternate airport.
• § 121.189 - Airplanes: Turbine engine powered: Takeoff limitations.
• § 121.191 - Airplanes: Turbine engine powered: En route limitations: One engine inoperative.
• § 121.193 - Airplanes: Turbine engine powered: En route limitations: Two engines inoperative.
• § 121.195 - Airplanes: Turbine engine powered: Landing limitations: Destination airports.
• § 121.197 - Airplanes: Turbine engine powered: Landing limitations: Alternate airports.
• § 121.198 - Cargo service airplanes: Increased zero fuel and landing weights.
• § 121.199 - Nontransport category airplanes: Takeoff limitations.
• § 121.201 - Nontransport category airplanes: En route limitations: One engine inoperative.
• § 121.203 - Nontransport category airplanes: Landing limitations: Destination airport.
• § 121.205 - Nontransport category airplanes: Landing limitations: Alternate airport.
• § 121.207 - Provisionally certificated airplanes: Operating limitations.