AC 29-2B

Historical

Advisory circular · Certification of Transport Category Rotorcraft

A newer version is currentThis is a historical version. AC 29-2C CHG 9 is the version in force, approved June 23, 2023.
Approved
July 30, 1997
Last reviewed
January 23, 2001
Cancels
AC29-2A
Cancelled by
AC29-2C
Family
AC 29-2 · 13 versions
Revision
B
14 CFR parts
29

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 22, 2025.

Show pages 4–15
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SECTION 37. LIGHTS (continued) Page No.

672. FAR 29.1389 Position Light Distribution and Intensities 1033

673. FAR 29.1391 Minimum Intensities in the Horizontal 1033 Plane of Forward and Rear Position Lights

674. FAR 29.1393 Minimum in Any Vertical Plane of Forward 1033 and Rear Position Lights

675. FAR 29.1395 Maximum Intensities In Overlapping Beams 1033 of Forward and Rear Position Lights

676. FAR 29.1397 Color Specifications 1033

677. FAR 29.1399 Riding Light.... .. 1033

678. FAR 29.1401 Anticollision Light System 1035

679.-688. RESERVED SECTION 38. SAFETY EQUIPMENT

689. FAR 29.1411 General.. 1044

690. FAR 29.1413 Safety Belts: Passenger Warning Device. . 1046

691. FAR 29.1415 Ditching Equipment 1047

692. RESERVED

693. FAR 29.1419 Ice Protection 1050

694.-701. RESERVED SECTION 39. MISCELLANEOUS EQUIPMENT

702. FAR 29.1431 Electronic Equipment 1076

703. FAR 29.1433 Vacuum Systems.. .. 1076

704. FAR 29.1435 Hydraulic Systems. . 1077

705. FAR 29.1439 Protective Breathing Equipment. .. 1080

706. FAR 29.1457 Cockpit Voice Recorder. 1081

707. FAR 29.1459 Flight Recorders ... . 1083

708. FAR 29.1461 Equipment Containing High Energy Rotors 1085

709.-717. RESERVED SECTION 40. OPERATING LIMITATIONS

718. FAR 29.1501 General... . 1096

719. FAR 29.1503 Airspeed Limitations: General .. 1096

720. FAR 29.1505 Never-Exceed Speed . 1098

721. FAR 29.1509 Rotor Speed... 1101

722. FAR 29.1517 Limiting Height-Speed Envelope. 1103

723. FAR 29.1519 Weight and Center of Gravity .. .1104

724. FAR 29.1521 Powerplant Limitations 1104 XVI

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SECTION 40. OPERATING LIMITATIONS (continued) Page No.

724A. FAR 29.1521 Powerplant Limitations 1105 724B. FAR 29.1521 Powerplant Limitations 1106

725. FAR 29.1522 Auxiliary Power Unit Limitations. 1107

726. FAR 29.1523 Minimum Flightcrew.. 1107

727. FAR 29.1525 Kinds of Operations.. 1111

728. FAR 29.1527 Maximum Operating Altitude 1112

729. FAR 29.1529 Instructions for Continued Airworthiness 1112 (Maintenance Manual) 729A. FAR 29.1529 Instructions for Continued Airworthiness 1115 (Maintenance Manual)

730.-739. RESERVED SECTION 41. MARKINGS AND PLACARDS

740. FAR 29.1541 General (See Paragraph 781). 1126

741. FAR 29.1543 Instrument Markings: General (See Paragraph 781) 1126

742. FAR 29.1545 Airspeed Indicator (See Paragraph 781).. 1126

743. FAR 29.1547 Magnetic Direction Indicator 1126

744. FAR 29.1549 Powerplant Instruments (See Paragraph 781) . 1126

745. FAR 29.1551 Oil Quantity Indicator 1126

746. FAR 29.1553 Fuel Quantity Indicator 1127

747. FAR 29.1555 Control Markings1127

748. FAR 29.1557 Miscellaneous Markings and Placards 1129

749. FAR 29.1559 Limitations Placard... 1130

750. FAR 29.1561 Safety Equipment1131

751. FAR 29.1565 Tail Rotor. 1132

752.-761. RESERVED SECTION 42. ROTORCRAFT FLIGHT MANUAL

762. FAR 29.1581 General.. 1143

763. FAR 29.1583 Operating Limitations. 1151 763A FAR 29.1583 Operating Limitations. . 1154

764. FAR 29.1585 Operating Procedures. . 1154

765. FAR 29.1587 Performance Information 1156 765A. FAR 29.1587 Performance Information.. .. 1160

766. FAR 29.1589 Loading Information. .1160

767.-774. RESERVED XVII

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CHAPTER 3 - MISCELLANEOUS AIRWORTHINESS STANDARDS Page No.

775. IFR Certification.. 1171

776. Certification Procedure for Rotorcraft Avionic Equipment.. 1192 Standardized Test Procedure for Rotorcraft DC 1209 Electrical System Tests

118. Standardized Test Procedure for Rotorcraft Generator Cooling 1214

779. FARS 29.1301, 29.1309, and 29.1322 Annunciator Panels 1217

780. RESERVED

781. FARs 29.1541, 29.1543, and 29.1549 Instrument Markings 1220 781A. FAR 29.1549 Powerplant Markings 1224

782. Rotorcraft and Systems Certification for Category II 1224 Operations

783. Structural Condition Indicators... 1230

784. Full Authority Digital Electronic Controls (FADEC) for 1234 Installations with Category A Engine Isolation

785. Agricultural Dispensing Equipment Installation .1236

786. Emergency Medical Service (EMS) Systems, Installations, 1242 Interior Arrangements, and Equipment

787. RESERVED

788. Substantiation of Composite Rotorcraft Structure . 1262 Appendix 1 Fatigue Evaluation of Transport Category Rotorcraft A1-1 Structure (Including Flaw Tolerance) Appendix 2 Rotorcraft OEI Power Assurance A2-1 Appendix 3 Advisory Material for Compliance with Rotorburst Rule. A3-1 XVIII

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ILLUSTRATIONS The first digits in the figure or table number are the same as the related paragraph number.

The digits after the hyphen are the number within the paragraph. Most figures or tables are located at the end of the related paragraph.

Figure/ Table No. Title Page 55-1 H-V Requirements 75 55-2 IGE Controllability Requirements 76 55-3 Shaft Horsepower vs. Turbine Outlet 77 Temperature - Sea Level Standard Day 55-4 Uninstalled Takeoff Power Available 78 55-5 Installed Takeoff Power Available, Anti-Ice, 79 400 RPM 55-6 Power Assurance Check Chart 80 58-1 Takeoff Performance Category A 87 58A-1 Takeoff Performance Category A 89 60-1 Category A Vertical Takeoff Profile Ground 99 Heliport 60-2 Category A Vertical Profile Pinnacle 100 60A-1 Category A Vertical Takeoff Profile Ground 110 Level Heliport 60A-2 Category A Vertical Takeoff Profile Elevated 111 Heliport 64-1 Conventional Takeoff Profile Category B 117 68-1 Autorotational Characteristics - Typical 128 70-1 Category A Conventional Landing - Clear 139 Heliport XIX

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Figure/Table No. Title Page 70-2 Category A Vertical Landing 140 70A-1 Category A Conventional Landing - Clear 150 Heliport 70A-2 Category A Vertical Landing 151 72-1 Height-Velocity Diagram 160 72-2 Altitude/Weight Accountability 161 85-1 Static Longitudinal Stability 183 110-1 Demonstration Points 214 137-1 Load Factor Gross Weight Curve 241 140-1 Sample Yaw/Forward Speed Diagram 246 140-2 Sample Yaw/Forward Speed Diagram 248 162-1 (View Looking Forward) 275 162-2 (View Looking Forward) 276 230-1 Comparison Percent of Time in Level Flight 348 249-1 Example of Casting Load Sheet Retract 381 Actuator Support-Landing Gear 249-1 (Table 1) Castings to be Static Tested for Model XYZ 383 328-1 Cockpit Visibility 476 337-1 Sea State Code - World Meteorological 501 Organization 373-1 Summary of Part 133 Rotorcraft Load 558 Combinations Certifiable Under § 29.865 386-1 Continuous Icing-Temperature vs. Altitude 592 Limits XX

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Figure/Table No. Title Page 386-2 Intermittent Icing-Temperature vs. Altitude 593 Limits 386-3 Mean Effective Drop Diameter-Microns 594 386-4 Intermittent Icing-Liquid Water Content vs. 595 Drop Diameter 386-5 Supercooled Clouds 596 423A-1 Rotor Drive System Endurance 660 423A-2 Takeoff Run Portion of Rotor Drive System 661 Endurance Test If 2 ½ Minute OEI Rating is Requested.

423A-3 Takeoff Run Portion of Rotor Drive System 662 Endurance Test If 30 Second/2 Minute OEI Rating is Requested.

425-1 Cantilevered Shaft, First Critical Speed 675 425-2 Shaft Between Support Bearings, First Critical 675 Speed 447-1 Static Tension and Shear Loading Modes 719 447-2 Hose Assembly Tests 720 447-3 Minimum Average and Individual Loads for 721 Hose and Hose-End Fitting Combinations 447-4 Typical Method of Breakaway Fuel Fitting Load 722 Calculations 447-5 Typical Methods of Frangible or Deformable 723 Attachment Load Calculations 447-6 Typical Methods of Frangible or Deformable 724 Attachment Load Calculations XXI

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Figure/Table No. Title Page 450A-1 Fuel Flow 734 516-1 Additional Cooling Test Point 809 518-1 All-Engine-Critical Altitude Additional Cooling 816 Test Point 589-1 Table of Materials and Gages Acceptable 903 for Fireproof Protective Devices with Flat Surface Geometries 637-1 Deviation Profile 990 637-2 Operational Limitation 992 693-1 Continuous Icing-Temperature vs. Altitude 1064 Limits 693-2 Intermittent Icing-Temperature vs. Altitude 1065 Limits 693-3 Continuous Icing-Liquid Water Content vs 1066 Drop Diameter 693-4 Intermittent Icing-Liquid Water Content vs. 1067 Drop Diameter 775-1 Rotorcraft Dynamic Stability Requirements for 1191 IFR 782-1 Category II Approach Evaluation 1228 782-2 Category II Approach Evaluation (cont.) 1229 785-1 Acceptable Ultimate Load Factor for Agricultural 1237 Dispensing Equipment Design 785-2 Sketch of Tank Pressure Test 1241 786-1 Typical Liquid Oxygen System 1259 XXII

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Figure/Table No. Title Page 786-2 Typical Liquid Oxygen System - Using 1260 Combination Valve APX1-1 S-N or P-N Curve Usage A1-15 APX1-2 Crack Growth for Single Element Structure A1-18 APX1-3 Crack Growth for Remaining Elements of A1-20 Multiple Element Structure APX2-1 Installed Engine Fuel Flow Capacity Check A2-9 APX3-1 Estimated Path of Fragments A3-10 APX3-2 Single One-Third Disc Fragment A3-11 APX3-3 Intermediate and Small Pieces of Debris A3-12 APX3-4 Blade Fragment Definition A3-13 APX3-5 Distribution of Translational and Rotational A3-14 Kinetic Energy of Rotor-Component Fragments as a Function of Fragment Size e APX3-6 Cross Section through Aircraft at Plane of A3-15 Rotation of the Engine Disk Fragment XXIII

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Abbreviations and Definitions AC advisory circular ACO aircraft certification office ADF automatic direction finding ADI attitude direction indicator AEO all engines operating AFCS automatic flight control systems AGL above ground level AHRS attitude heading reference system Amdt. Amendment APU auxiliary power unit ATC air traffic control BIM blade inspection method CAM cockpit area microphone CAR Civil Air Regulations CAS calibrated air speed CBIM cockpit blade inspection method CDP critical decision point CG center of gravity CPS cycles per second CRFS crash resistant fuel system CRT cathode ray tube CVR cockpit voice recorder DER designated engineering representative DME distance measuring equipment ECAS engine caution advisory systems ECU environmental control unit EFIS electronic flight instrument system EFP engine failure point EHE exhaust heat exchanger ELT emergency locator transmitter EMI electromagnetic interference EMS emergency medical service EOL end of life FAA Federal Aviation Administration FADEC full authority digital engine control FAR Federal Aviation Regulations FMEA failure mode and effects analysis FPM feet per minute FPS feet per second GPS global positioning system HF high frequency HIRF high intensity radiated fields HRD high rate of discharge HUMS health and usage monitoring systems HV height-velocity IAS indicated airspeed ICAO International Civil Aviation Organization ICS inter-communication system IFR instrument flight rules IGE in ground effect IIDS integrated instrument display system ILS instrument landing system IMC instrument meteorological conditions INS inertial navigation system ISA international standard atmosphere ISIS integral spar inspection system ITT inter-turbine temperature KCAS knots calibrated airspeed KIAS knots indicated air speed KTAS knots true airspeed LDP landing decision point LWC liquid water content MCP maximum continuous power MGT measured gas temperature MSL mean sea level MVD median volume diameter NDI non-destructive inspection NM nautical mile NPRM notice of proposed rulemaking NTSB National Transportation Safety Board NG night vision goggles OAT outside air temperature OEl one engine inoperative OGE out of ground effect PBA pitch bias actuator XXIV

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7/30/97 PCF post crash fire PIO pilot induced oscillation PSIG pounds per square inch gauge QPL qualified parts list RFM rotorcraft flight manual RFMS rotorcraft flight manual supplement RPM revolutions per minute RTCA Radio Technical Commission of Aeronautics RVR runway visual range SAE Society of Automotive Engineers SAS stability augmentation system SCAS stability and control augmentation systems SRM structural repair manual STC supplemental type certificate STOL short takeoff and landing TBO time between overhaul TC type certificate TCDS type certificate data sheet TDP takeoff decision point TIA type inspection authorization TIR type inspection report TOT turbine outlet temperature TSO: technical standard order TVP true vapor pressure VBIM visual blade inspection method VFR visual flight rules VMC visual meteorological conditions VOR very high frequency omnidirectional range radio VSI vertical speed indicator V/STOL vertical/short takeoff and landing VTOL vertical takeoff and landing WAT weight, altitude, temperature AC 29-2B Altitudes HD density altitude HP pressure altitude V speeds VD diving speed VH speed in level flight with maximum continuous power VMO maximum operating limit speed VNE never-exceed speed VTOSS takeoff safety speed for Category A rotorcraft VX speed for best angle of climb VY speed for best rate of climb MMO maximum operating mach number N speeds NF free turbine speed NG gas generator speed NP power turbine speed NR rotor speed Coefficients CD coefficient of drag CL coefficient of lift CP coefficient of power CT coefficient of thrust XXV

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CHAPTER 1. PART 21

CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS (Amendment 21-50)

1.-2. RESERVED.

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3. RESERVED.

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