14 C.F.R. PART 23--AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES


TITLE 14--Aeronautics and Space

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

SUBCHAPTER C--AIRCRAFT

PART 23--AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES

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Appendix
Special Federal Aviation Regulation No. 23

Subpart A--GENERAL

�23.1
Applicability.
�23.2
Special retroactive requirements.
�23.3
Airplane categories.
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Subpart B--FLIGHT

�23.21
Proof of compliance.
�23.23
Load distribution limits.
�23.25
Weight limits.
�23.29
Empty weight and corresponding center of gravity.
�23.31
Removable ballast.
�23.33
Propeller speed and pitch limits.
�23.45
General.
�23.49
Stalling period.
�23.51
Takeoff speeds.
�23.53
Takeoff performance.
�23.55
Accelerate-stop distance.
�23.57
Takeoff path.
�23.59
Takeoff distance and takeoff run.
�23.61
Takeoff flight path.
�23.63
Climb: General.
�23.65
Climb: All engines operating.
�23.66
Takeoff climb: One-engine inoperative.
�23.67
Climb: One engine inoperative.
�23.69
Enroute climb/descent.
�23.71
Glide: Single-engine airplanes.
�23.73
Reference landing approach speed.
�23.75
Landing distance.
�23.77
Balked landing.
�23.141
General.
�23.143
General.
�23.145
Longitudinal control.
�23.147
Directional and lateral control.
�23.149
Minimum control speed.
�23.151
Acrobatic maneuvers.
�23.153
Control during landings.
�23.155
Elevator control force in maneuvers.
�23.157
Rate of roll.
�23.161
Trim.
�23.171
General.
�23.173
Static longitudinal stability.
�23.175
Demonstration of static longitudinal stability.
�23.177
Static directional and lateral stability.
�23.181
Dynamic stability.
�23.201
Wings level stall.
�23.203
Turning flight and accelerated turning stalls.
�23.207
Stall warning.
�23.221
Spinning.
�23.231
Longitudinal stability and control.
�23.233
Directional stability and control.
�23.235
Operation on unpaved surfaces.
�23.237
Operation on water.
�23.239
Spray characteristics.
�23.251
Vibration and buffeting.
�23.253
High speed characteristics.
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Subpart C--STRUCTURE

�23.301
Loads.
�23.302
Canard or tandem wing configurations.
�23.303
Factor of safety.
�23.305
Strength and deformation.
�23.307
Proof of structure.
�23.321
General.
�23.331
Symmetrical flight conditions.
�23.333
Flight envelope.
�23.335
Design airspeeds.
�23.337
Limit maneuvering load factors.
�23.341
Gust loads factors.
�23.343
Design fuel loads.
�23.345
High lift devices.
�23.347
Unsymmetrical flight conditions.
�23.349
Rolling conditions.
�23.351
Yawing conditions.
�23.361
Engine torque.
�23.363
Side load on engine mount.
�23.365
Pressurized cabin loads.
�23.367
Unsymmetrical loads due to engine failure.
�23.369
Rear lift truss.
�23.371
Gyroscopic and aerodynamic loads.
�23.373
Speed control devices.
�23.391
Control surface loads.
�23.393
Loads parallel to hinge line.
�23.395
Control system loads.
�23.397
Limit control forces and torques.
�23.399
Dual control system.
�23.405
Secondary control system.
�23.407
Trim tab effects.
�23.409
Tabs.
�23.415
Ground gust conditions.
�23.421
Balancing loads.
�23.423
Maneuvering loads.
�23.425
Gust loads.
�23.427
Unsymmetrical loads.
�23.441
Maneuvering loads.
�23.443
Gust loads.
�23.445
Outboard fins or winglets.
�23.455
Ailerons.
�23.459
Special devices.
�23.471
General.
�23.473
Ground load conditions and assumptions.
�23.477
Landing gear arrangement.
�23.479
Level landing conditions.
�23.481
Tail down landing conditions.
�23.483
One-wheel landing conditions.
�23.485
Side load conditions.
�23.493
Braked roll conditions.
�23.497
Supplementary conditions for tail wheels.
�23.499
Supplementary conditions for nose wheels.
�23.505
Supplementary conditions for skiplanes.
�23.507
Jacking loads.
�23.509
Towing loads.
�23.511
Ground load; unsymmetrical loads on multiple-wheel units.
�23.521
Water load conditions.
�23.523
Design weights and center of gravity positions.
�23.525
Application of loads.
�23.527
Hull and main float load factors.
�23.529
Hull and main float landing conditions.
�23.531
Hull and main float takeoff condition.
�23.533
Hull and main float bottom pressures.
�23.535
Auxiliary float loads.
�23.537
Seawing loads.
�23.561
General.
�23.562
Emergency landing dynamic conditions.
�23.571
Metallic pressurized cabin structures.
�23.572
Metallic wing, empennage, and associated structures.
�23.573
Damage tolerance and fatigue evaluation of structure.
�23.574
Metallic damage tolerance and fatigue evaluation of commuter category airplanes.
�23.575
Inspections and other procedures.
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Subpart D--DESIGN AND CONSTRUCTION

�23.601
General.
�23.603
Materials and workmanship.
�23.605
Fabrication methods.
�23.607
Fasteners.
�23.609
Protection of structure.
�23.611
Accessibility provisions.
�23.613
Material strength properties and design values.
�23.619
Special factors.
�23.621
Casting factors.
�23.623
Bearing factors.
�23.625
Fitting factors.
�23.627
Fatigue strength.
�23.629
Flutter.
�23.641
Proof of strength.
�23.651
Proof of strength.
�23.655
Installation.
�23.657
Hinges.
�23.659
Mass balance.
�23.671
General.
�23.672
Stability augmentation and automatic and power-operated systems.
�23.673
Primary flight controls.
�23.675
Stops.
�23.677
Trim systems.
�23.679
Control system locks.
�23.681
Limit load static tests.
�23.683
Operation tests.
�23.685
Control system details.
�23.687
Spring devices.
�23.689
Cable systems.
�23.691
Artificial stall barrier system.
�23.693
Joints.
�23.697
Wing flap controls.
�23.699
Wing flap position indicator.
�23.701
Flap interconnection.
�23.703
Takeoff warning system.
�23.721
General.
�23.723
Shock absorption tests.
�23.725
Limit drop tests.
�23.726
Ground load dynamic tests.
�23.727
Reserve energy absorption drop test.
�23.729
Landing gear extension and retraction system.
�23.731
Wheels.
�23.733
Tires.
�23.735
Brakes.
�23.737
Skis.
�23.745
Nose/tail wheel steering.
�23.751
Main float buoyancy.
�23.753
Main float design.
�23.755
Hulls.
�23.757
Auxiliary floats.
�23.771
Pilot compartment.
�23.773
Pilot compartment view.
�23.775
Windshields and windows.
�23.777
Cockpit controls.
�23.779
Motion and effect of cockpit controls.
�23.781
Cockpit control knob shape.
�23.783
Doors.
�23.785
Seats, berths, litters, safety belts, and shoulder harnesses.
�23.787
Baggage and cargo compartments.
�23.791
Passenger information signs.
�23.803
Emergency evacuation.
�23.805
Flightcrew emergency exits.
�23.807
Emergency exits.
�23.811
Emergency exit marking.
�23.812
Emergency lighting.
�23.813
Emergency exit access.
�23.815
Width of aisle.
�23.831
Ventilation.
�23.841
Pressurized cabins.
�23.843
Pressurization tests.
�23.851
Fire extinguishers.
�23.853
Passenger and crew compartment interiors.
�23.855
Cargo and baggage compartment fire protection.
�23.859
Combustion heater fire protection.
�23.863
Flammable fluid fire protection.
�23.865
Fire protection of flight controls, engine mounts, and other flight structure.
�23.867
Electrical bonding and protection against lightning and static electricity.
�23.871
Leveling means.
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Subpart E--POWERPLANT

�23.901
Installation.
�23.903
Engines.
�23.904
Automatic power reserve system.
�23.905
Propellers.
�23.907
Propeller vibration.
�23.909
Turbocharger systems.
�23.925
Propeller clearance.
�23.929
Engine installation ice protection.
�23.933
Reversing systems.
�23.934
Turbojet and turbofan engine thrust reverser systems tests.
�23.937
Turbopropeller-drag limiting systems.
�23.939
Powerplant operating characteristics.
�23.943
Negative acceleration.
�23.951
General.
�23.953
Fuel system independence.
�23.954
Fuel system lightning protection.
�23.955
Fuel flow.
�23.957
Flow between interconnected tanks.
�23.959
Unusable fuel supply.
�23.961
Fuel system hot weather operation.
�23.963
Fuel tanks: General.
�23.965
Fuel tank tests.
�23.967
Fuel tank installation.
�23.969
Fuel tank expansion space.
�23.971
Fuel tank sump.
�23.973
Fuel tank filler connection.
�23.975
Fuel tank vents and carburetor vapor vents.
�23.977
Fuel tank outlet.
�23.979
Pressure fueling systems.
�23.991
Fuel pumps.
�23.993
Fuel system lines and fittings.
�23.994
Fuel system components.
�23.995
Fuel valves and controls.
�23.997
Fuel strainer or filter.
�23.999
Fuel system drains.
�23.1001
Fuel jettisoning system.
�23.1011
General.
�23.1013
Oil tanks.
�23.1015
Oil tank tests.
�23.1017
Oil lines and fittings.
�23.1019
Oil strainer or filter.
�23.1021
Oil system drains.
�23.1023
Oil radiators.
�23.1027
Propeller feathering system.
�23.1041
General.
�23.1043
Cooling tests.
�23.1045
Cooling test procedures for turbine engine powered airplanes.
�23.1047
Cooling test procedures for reciprocating engine powered airplanes.
�23.1061
Installation.
�23.1063
Coolant tank tests.
�23.1091
Air induction system.
�23.1093
Induction system icing protection.
�23.1095
Carburetor deicing fluid flow rate.
�23.1097
Carburetor deicing fluid system capacity.
�23.1099
Carburetor deicing fluid system detail design.
�23.1101
Induction air preheater design.
�23.1103
Induction system ducts.
�23.1105
Induction system screens.
�23.1107
Induction system filters.
�23.1109
Turbocharger bleed air system.
�23.1111
Turbine engine bleed air system.
�23.1121
General.
�23.1123
Exhaust system.
�23.1125
Exhaust heat exchangers.
�23.1141
Powerplant controls: General.
�23.1142
Auxiliary power unit controls.
�23.1143
Engine controls.
�23.1145
Ignition switches.
�23.1147
Mixture controls.
�23.1149
Propeller speed and pitch controls.
�23.1153
Propeller feathering controls.
�23.1155
Turbine engine reverse thrust and propeller pitch settings below the flight regime.
�23.1157
Carburetor air temperature controls.
�23.1163
Powerplant accessories.
�23.1165
Engine ignition systems.
�23.1181
Designated fire zones; regions included.
�23.1182
Nacelle areas behind firewalls.
�23.1183
Lines, fittings, and components.
�23.1189
Shutoff means.
�23.1191
Firewalls.
�23.1192
Engine accessory compartment diaphragm.
�23.1193
Cowling and nacelle.
�23.1195
Fire extinguishing systems.
�23.1197
Fire extinguishing agents.
�23.1199
Extinguishing agent containers.
�23.1201
Fire extinguishing systems materials.
�23.1203
Fire detector system.
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Subpart F--EQUIPMENT

�23.1301
Function and installation.
�23.1303
Flight and navigation instruments.
�23.1305
Powerplant instruments.
�23.1307
Miscellaneous equipment.
�23.1309
Equipment, systems, and installations.
�23.1311
Electronic display instrument systems.
�23.1321
Arrangement and visibility.
�23.1322
Warning, caution, and advisory lights.
�23.1323
Airspeed indicating system.
�23.1325
Static pressure system.
�23.1326
Pitot heat indication systems.
�23.1327
Magnetic direction indicator.
�23.1329
Automatic pilot system.
�23.1331
Instruments using a power source.
�23.1335
Flight director systems.
�23.1337
Powerplant instruments installation.
�23.1351
General.
�23.1353
Storage battery design and installation.
�23.1357
Circuit protective devices.
�23.1359
Electrical system fire protection.
�23.1361
Master switch arrangement.
�23.1365
Electric cables and equipment.
�23.1367
Switches.
�23.1381
Instrument lights.
�23.1383
Taxi and landing lights.
�23.1385
Position light system installation.
�23.1387
Position light system dihedral angles.
�23.1389
Position light distribution and intensities.
�23.1391
Minimum intensities in the horizontal plane of position lights.
�23.1393
Minimum intensities in any vertical plane of position lights.
�23.1395
Maximum intensities in overlapping beams of position lights.
�23.1397
Color specifications.
�23.1399
Riding light.
�23.1401
Anticollision light system.
�23.1411
General.
�23.1415
Ditching equipment.
�23.1416
Pneumatic de-icer boot system.
�23.1419
Ice protection.
�23.1431
Electronic equipment.
�23.1435
Hydraulic systems.
�23.1437
Accessories for multiengine airplanes.
�23.1438
Pressurization and pneumatic systems.
�23.1441
Oxygen equipment and supply.
�23.1443
Minimum mass flow of supplemental oxygen.
�23.1445
Oxygen distribution system.
�23.1447
Equipment standards for oxygen dispensing units.
�23.1449
Means for determining use of oxygen.
�23.1450
Chemical oxygen generators.
�23.1451
Fire protection for oxygen equipment.
�23.1453
Protection of oxygen equipment from rupture.
�23.1457
Cockpit voice recorders.
�23.1459
Flight recorders.
�23.1461
Equipment containing high energy rotors.
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Subpart G--OPERATING LIMITATIONS AND INFORMATION

�23.1501
General.
�23.1505
Airspeed limitations.
�23.1507
Operating maneuvering speed.
�23.1511
Flap extended speed.
�23.1513
Minimum control speed.
�23.1519
Weight and center of gravity.
�23.1521
Powerplant limitations.
�23.1522
Auxiliary power unit limitations.
�23.1523
Minimum flight crew.
�23.1524
Maximum passenger seating configuration.
�23.1525
Kinds of operation.
�23.1527
Maximum operating altitude.
�23.1529
Instructions for continued Airworthiness.
�23.1541
General.
�23.1543
Instrument markings: General.
�23.1545
Airspeed indicator.
�23.1547
Magnetic direction indicator.
�23.1549
Powerplant and auxiliary power unit instruments.
�23.1551
Oil quantity indicator.
�23.1553
Fuel quantity indicator.
�23.1555
Control markings.
�23.1557
Miscellaneous markings and placards.
�23.1559
Operating limitations placard.
�23.1561
Safety equipment.
�23.1563
Airspeed placards.
�23.1567
Flight maneuver placard.
�23.1581
General.
�23.1583
Operating limitations.
�23.1585
Operating procedures.
�23.1587
Performance information.
�23.1589
Loading information.
Appendix
Appendix A to Part 23--Simplified Design Load Criteria
Appendix
Appendix B to Part 23--[Reserved]
Appendix
Appendix C to Part 23--Basic Landing Conditions
Appendix
Appendix D to Part 23--Wheel Spin-Up and Spring-Back Loads
Appendix
Appendix E to Part 23--[Reserved]
Appendix
Appendix F to Part 23--Test Procedure
Appendix
Appendix G to Part 23--Instructions for continued Airworthiness
Appendix
Appendix H to Part 23--Installation of An Automatic Power Reserve (APR) System
Appendix
Appendix I to Part 23--Seaplane Loads
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