SUBPART I—Airplane Performance Operating Limitations (§121.171 to §121.207)
- 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.