AC 23-8B

Historical

Advisory circular · Flight Test Guide for Certification of Part 23 Airplanes

A newer version is currentThis is a historical version. AC 23-8C is the version in force, approved November 16, 2011.
Approved
August 14, 2003
Last reviewed
September 19, 2003
Cancels
AC23-8A
Cancelled by
AC23-8C
Family
AC 23-8 · 3 versions
Revision
B
14 CFR parts
23
Cited by
1 AD

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

Subject: FLIGHT TEST GUIDE

FOR CERTIFICATION OF PART 23 AIRPLANES

Date: 8/14/03 Initiated By: ACE-100

AC No: 23-8B Change:

1. PURPOSE.

a. This advisory circular (AC) sets forth an acceptable means, but not the only means, of showing compliance with Title 14 Code of Federal Regulations (14 CFR) Part 23 concerning flight tests and pilot judgements. Material in this AC is neither mandatory nor regulatory in nature and does not constitute a regulation.

b. This AC is one method being utilized to achieve national standardization in normal, utility, acrobatic, and commuter category airplanes. This AC applies to Subpart B and various sections under Subparts A, D, E, F and G from § 23.1 through § 23.1589. This AC consolidates existing policy documents, and certain AC's that cover specific paragraphs of the regulations, into a single document.

c. This material is intended as a ready reference for Part 23 airplane manufacturers, modifiers, Federal Aviation Administration (FAA) design evaluation engineers, flight test engineers, and engineering flight test pilots, including Delegation Option Authorization (DOA), Designated Alteration Station (DAS), and Designated Engineering Representative (DER) personnel.

2. CANCELLATION. The following AC is cancelled: AC 23-8A, Flight Test Guide for Certification of Part 23 Airplanes.

3. GENERAL. This AC covers flight test items of interest during type certification. Other engineering disciplines, such as airframes, systems and equipment, and propulsion are addressed as they pertain to flight test criteria.

4. BACKGROUND.

a. AC 23-8, Flight Test Guide for Certification of Normal, Utility, and Acrobatic Category Airplanes, was published to replace FAA Order 8110.7, Engineering Flight Test Guide for Small Airplanes, dated June 20, 1972, and to consolidate existing flight test policy. AC 23-8 did not cover commuter category airplanes. AC 23-8A updated the original 23-8 by adding information and guidance for commuter airplanes. AC 23-8B again updates the Flight Test Guide to

incorporate information and guidance through 14 CFR Part 23, Amendment 23-51. The AC also incorporates material harmonized with the European Joint Aviation Authorities (JAA). This AC and the JAA Advisory Circular Joint for Flight Test are essentially identical for all sections with the exception of known disharmonies.

b. In 1968, the Federal Aviation Administration (FAA) instituted an extensive review of the airworthiness standards of Part 23. Since then, the regulations have been amended through Amendment 23-53. These amendments have changed most of the sections of Part 23. This document provides guidance for the original issue of Part 23 and the various amendments through Amendment 23-51. This version of the advisory circular covers policy available through June 30, 1994. Policy that became available after June 30, 1994, will be covered in future amendments to the advisory circular.

5. APPLICABILITY.

a. The methods and procedures contained in this AC are available for use during all normal, utility, acrobatic, and commuter category airplane flight test certification activities. This material does not have any legal status and must be treated accordingly. The procedures set forth are one acceptable means of compliance with applicable sections of Part 23.

b. Like all AC material, these guidelines are not mandatory and do not constitute a regulation.

They came from previous FAA experience in finding compliance with the airworthiness requirements. They represent the methods and procedures found acceptable by that experience.

Since these methods and procedures are only one acceptable means of compliance, individuals should be guided by the intent of the methods provided in this AC. Any alternate means proposed by the applicant will be given due consideration. Applicants should contact their Aircraft Certification Office (ACO) to determine the acceptability of proposed methods.

c. This AC covers the latest Part 23 amendments through Amendment 23-51. Each paragraph has the applicable Part 23 amendment shown in the title. Prior amendments may require separate procedures and guidance. Applicants should contact their ACO for information concerning policies applicable to prior amendments of Part 23 and Civil Air Regulations (CAR 3).

d. Sections entitled "Reserved" will be filled in when the material is developed.

e. This AC is applicable only to the original applicant seeking issuance of a Type Certificate (TC), an Amended TC, or a Supplemental Type Certificate (STC) for the initial approval of the new type design or a change in the approved type design. This material is not to be construed as having any legal status and should be treated accordingly. This version of the advisory circular covers policy available through June 30, 1994. Policy that became available after that date will be covered in future amendments to the advisory circular.

6. PARAGRAPHS KEYED TO PART 23. Each paragraph has the applicable Part 23 amendment shown in the title. As Part 23 changes occur, the appropriate revisions will be made to the affected paragraphs of this AC.

7. RELATED PUBLICATIONS. Certification personnel should be familiar with FAA Order 8110.4 "Type Certification," and FAA Order 8100.5, "Aircraft Certification Directorate Procedures." In this AC, reference is made to other FAA AC's which give guidance on various aspects of type certification ii

and supplemental type certification. The documents listed below are provided as a quick reference source of documents that are acceptable for use in 14 CFR, Part 23 certification programs/projects.

a. Free AC's Copies of current publications of the following free Orders and AC’s listed below can be obtained from the U.S. Department of Transportation, Subsequent Distribution Office, Ardmore East Business Center, 3341 Q 75th Avenue, Landover, MD 20785:

20-67B Airborne VHF Communications Equipment Installations 20-124 Water Ingestion Testing for Turbine Powered Airplanes 20-118A Emergency Evacuation Demonstration 20-129 Airworthiness Approval of Vertical Navigation (VNAV) Systems for Use in the U.S. National Airspace System (NAS) and Alaska 20-130A Airworthiness Approval of Navigation or Flight Management Systems Integrating Multiple Navigation Sensors 20-138 Airworthiness Approval of Global Position System (GPS) Navigation Equipment for Use as a VFR and IFR Supplemental Navigation System AC 23-7 Substantiation for an Increase in Maximum Weight, Maximum Landing Weight, or Zero Fuel Weight

23.629-1A Means of Compliance with Section 23.629, "Flutter" 23-1309-1C Equipment, Systems, and Installations in Part 23 Airplanes 23-1419 Certification of Part 23 Airplanes for Flight in Icing Conditions 25-4 Inertial Navigation Systems (INS) 90-79 Recommended Practices and Procedures for the Use of Electronic Long-Range Navigation Equipment 90-96 Approval of U.S. Operators and Aircraft to Operate Under Instrument Flight Rules (IFR) in European Airspace Designated for Basic Area Navigation (BRNAV/RNP-5) 91-49 General Aviation Procedures for Flight in North Atlantic Minimum Navigation Performance Specifications Airspace 121-13 Self-Contained Navigation Systems (Long Range)

b. For Sale AC's

Copies of current publications of the following “for sale” AC’s may be purchased from the Superintendent of Documents, Post Office Box 371954, Pittsburgh, PA 15250-7954; make check or money order payable to the Superintendent of Documents:

20-88A Guidelines on Marking Aircraft Powerplant Instruments (Displays) 23-16 Powerplant Guide for Certification of Part 23 Airplanes 23-17 Systems and Equipment Guide for Certification of Part 23 Airplanes iii

8. HOW TO OBTAIN. Copies of AC 23-8B may be ordered from the Superintendent of Documents, Post Office Box 371954, Pittsburgh, PA 15250-7954; make check or money order payable to the Superintendent of Documents. Copies may also be obtained through any Government Printing Office bookstore located in major cities throughout the United States.

s/Diane K. Malone Acting Manager Small Airplane Directorate Aircraft Certification Service iv

CONTENTS

CHAPTER 1. GENERAL1

1. SECTION 23.1 APPLICABILITY1

2. SECTION 23.3 AIRPLANE CATEGORIES1

3.-5 RESERVED1

CHAPTER 2. FLIGHT2

6. SECTION 23.21 PROOF OF COMPLIANCE2

7. SECTION 23.23 LOAD DISTRIBUTION LIMITS5

8. SECTION 23.25 WEIGHT LIMITS6

9. SECTION 23.29 EMPTY WEIGHT AND CORRESPONDING

CENTER OF GRAVITY.8

10. SECTION 23.31 REMOVABLE BALLAST8

11. SECTION 23.33 PROPELLER SPEED AND PITCH LIMITS8

12.-15. RESERVED10

16. SECTION 23.45 GENERAL10

17. SECTION 23.49 STALLING SPEED13

18. SECTION 23.51 TAKEOFF SPEEDS20

19. SECTION 23.53 TAKEOFF PERFORMANCE24

20. RESERVED27

21. SECTION 23.55 ACCELERATE-STOP DISTANCE27

22. SECTION 23.57 TAKE-OFF PATH32

23. SECTION 23.59 TAKEOFF DISTANCE AND TAKEOFF RUN37

24. SECTION 23.61 TAKEOFF FLIGHT PATH41

25. SECTION 23.65 CLIMB: ALL ENGINES OPERATING43

26. SECTION 23.66 TAKEOFF CLIMB, ONE ENGINE INOPERATIVE47

27. SECTION 23.67 CLIMB: ONE ENGINE INOPERATIVE47

28. SECTION 23.71 GLIDE (SINGLE-ENGINE AIRPLANES)50

29. SECTION 23.75 LANDING51

30. SECTION 23.77 BALKED LANDING CLIMB56

31.-38. RESERVED57

39. SECTION 23.141 GENERAL58

40.-44. RESERVED58

45. SECTION 23.143 GENERAL58

46. SECTION 23.145 LONGITUDINAL CONTROL60

47. SECTION 23.147 DIRECTIONAL AND LATERAL CONTROL61

48. SECTION 23.149 MINIMUM CONTROL SPEED63

49. SECTION 23.151 ACROBATIC MANEUVERS67

50. SECTION 23.153 CONTROL DURING LANDINGS67

51. SECTION 23.155 ELEVATOR CONTROL FORCE IN MANEUVERS68

52. SECTION 23.157 RATE OF ROLL70

53.-62. RESERVED70

63. SECTION 23.161 TRIM70

64.-69. RESERVED71

70. SECTION 23.171 GENERAL71

71. SECTION 23.173 STATIC LONGITUDINAL STABILITY74

72. SECTION 23.175 DEMONSTRATION OF STATIC LONGITUDINAL

STABILITY74

73. SECTION 23.177 STATIC DIRECTIONAL AND LATERAL STABILITY77

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74. SECTION 23.179 RESERVED78

75. SECTION 23.181 DYNAMIC STABILITY78

76.-85. RESERVED82

86. SECTION 23.201 WINGS LEVEL STALL82

87. SECTION 23.203 TURNING FLIGHT AND ACCELERATED TURNING

STALLS.85

88. SECTION 23.205 RESERVED86

89. SECTION 23.207 STALL WARNING86

90.-99 RESERVED86

100. SECTION 23.221 SPINNING86

101.-105. RESERVED92

106. SECTION 23.231 LONGITUDINAL STABILITY AND CONTROL93

107. SECTION 23.233 DIRECTIONAL STABILITY AND CONTROL93

108. SECTION 23.235 OPERATION ON UNPAVED SURFACES95

109. SECTION 23.237 OPERATION ON WATER95

110. SECTION 23.239 SPRAY CHARACTERISTICS95

111.-119. RESERVED95

120. SECTION 23.251 VIBRATION AND BUFFETING95

121. SECTION 23.253 HIGH SPEED CHARACTERISTICS96

122.-131. RESERVED100

CHAPTER 3. DESIGN AND CONSTRUCTION101

132. SECTION 23.629 FLUTTER101

133.-137. RESERVED101

138. SECTION 23.671 GENERAL. (RESERVED)101

138a. SECTION 23.672 STABILITY AUGMENTATION AND AUTOMATIC AND

POWER OPERATED SYSTEMS (RESERVED)101

139. SECTION 23.677 TRIM SYSTEMS101

140. SECTION 23.679 CONTROL SYSTEM LOCKS103

140a SECTION 23.691 ARTIFICIAL STALL BARRIER SYSTEM.

(RESERVED)103

141. SECTION 23.697 WING FLAP CONTROLS. (RESERVED)103

142. SECTION 23.699 WING FLAP POSITION INDICATOR. (RESERVED)103

143. SECTION 23.701 FLAP INTERCONNECTION103

144.-153. RESERVED104

154. SECTION 23.729 LANDING GEAR EXTENSION AND RETRACTION

SYSTEM.104

155. SECTION 23.735 BRAKES. (RESERVED)104

156.-160. RESERVED104

161. SECTION 23.771 PILOT COMPARTMENT. (RESERVED)104

162. SECTION 23.773 PILOT COMPARTMENT VIEW104

162.a SECTION 23.775 WINDSHIELDS AND WINDOWS105

163. SECTION 23.777 COCKPIT CONTROLS. (RESERVED)105

163a. SECTION 23.785 SEATS, BERTHS, LITTERS, SAFETY BELTS AND

SHOULDER HARNESSES105

164. SECTION 23.803 EMERGENCY EVACUATION105

165. SECTION 23.807 EMERGENCY EXITS105

166. SECTION 23.831 VENTILATION105

167.-175. RESERVED107

176. SECTION 23.841 PRESSURIZED CABINS107

177. SECTION 23.843 PRESSURIZATION TESTS. (RESERVED)107

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178.-188. RESERVED107

CHAPTER 4. POWERPLANT108

189. SECTION 23.901 INSTALLATION. (RESERVED)108

190. SECTION 23.903 ENGINES108

191. SECTION 23.905 PROPELLERS111

192. SECTION 23.909 TURBO SUPERCHARGERS111

192.a. SECTION 23.925 PROPELLER CLEARANCE111

193. SECTION 23.929 ENGINE INSTALLATION ICE PROTECTION111

194. SECTION 23.933 REVERSING SYSTEMS111

195. SECTION 23.939 POWERPLANT OPERATING CHARACTERISTICS112

196. SECTION 23.943 NEGATIVE ACCELERATION112

197.-206. RESERVED113

207. SECTION 23.959 UNUSABLE FUEL SUPPLY113

208. SECTION 23.961 FUEL SYSTEM HOT WEATHER OPERATION113

209.-220. RESERVED113

221. SECTION 23.1001 FUEL JETTISONING SYSTEM113

222.-237. RESERVED114

238. SECTION 23.1027 PROPELLER FEATHERING SYSTEM114

239.-244. RESERVED115

245. SECTION 23.1041 GENERAL115

246. SECTION 23.1043 COOLING TESTS115

247. SECTION 23.1045 COOLING TEST PROCEDURES FOR TURBINE

ENGINE-POWERED AIRPLANES116

248. SECTION 23.1047 COOLING TEST PROCEDURES FOR

RECIPROCATING ENGINE-POWERED AIRPLANES119

249.-254. RESERVED122

255. SECTION 23.1091 AIR INDUCTION122

256. SECTION 23.1093 INDUCTION SYSTEM ICING PROTECTION122

257.-265. RESERVED127

266. SECTION 23.1141 POWERPLANT CONTROLS: GENERAL127

267. SECTION 23.1145 IGNITION SWITCHES. (RESERVED)127

268. SECTION 23.1153 PROPELLER FEATHERING CONTROLS127

269.-278. RESERVED127

279. SECTION 23.1189 SHUTOFF MEANS127

280.-285. RESERVED127

CHAPTER 5. EQUIPMENT128

286. (RESERVED)128

287. SECTION 23.1301 FUNCTION AND INSTALLATION128

288. (RESERVED)137

289. SECTION 23.1303 FLIGHT AND NAVIGATION INSTRUMENTS137

290. SECTION 23.1305 POWERPLANT INSTRUMENTS138

291. SECTION 23.1307 MISCELLANEOUS EQUIPMENT. (RESERVED)138

292. SECTION 23.1309 EQUIPMENT, SYSTEMS, AND INSTALLATIONS.

(RESERVED)138

293.-299. RESERVED138

300. SECTION 23.1311 ELECTRONIC DISPLAY INSTRUMENT SYSTEMS138

301. SECTION 23.1321 ARRANGEMENT AND VISIBILITY. (RESERVED)138

302. SECTION 23.1322 WARNING, CAUTION, AND ADVISORY LIGHTS.

(RESERVED)138

303. SECTION 23.1323 AIRSPEED INDICATING SYSTEM138

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304. SECTION 23.1325 STATIC PRESSURE SYSTEM140

305. SECTION 23.1326 PITOT HEAT INDICATION SYSTEMS. (RESERVED) ... 142

306. SECTION 23.1327 MAGNETIC DIRECTION INDICATOR. (RESERVED)... 142

307. SECTION 23.1329 AUTOMATIC PILOT SYSTEM142

308. SECTION 23.1331 INSTRUMENTS USING A POWER SUPPLY.

(RESERVED)142

309. SECTION 23.1335 FLIGHT DIRECTOR SYSTEMS. (RESERVED)142

310. SECTION 23.1337 POWERPLANT INSTRUMENTS142

311.-318. RESERVED143

319. SECTION 23.1351 GENERAL. (RESERVED)143

320. SECTION 23.1353 STORAGE BATTERY DESIGN AND INSTALLATION. .. 143

321. SECTION 23.1357 CIRCUIT PROTECTIVE DEVICES. (RESERVED)144

322. SECTION 23.1361 MASTER SWITCH ARRANGEMENT144

323. SECTION 23.1367 SWITCHES. (RESERVED)144

324.-328. RESERVED144

329. SECTION 23.1381 INSTRUMENT LIGHTS. (RESERVED)144

330. SECTION 23.1383 LANDING LIGHTS. (RESERVED)144

331.-335. RESERVED144

336. SECTION 23.1411 GENERAL. (RESERVED)144

337. SECTION 23.1415 DITCHING EQUIPMENT. (RESERVED)144

338. SECTION 23.1416 PNEUMATIC DEICER BOOT SYSTEM.

See AC 23.1419-2.144

339. SECTION 23.1419 ICE PROTECTION. See AC 23.1419-2144

340.-349. RESERVED144

350. SECTION 23.1431 ELECTRONIC EQUIPMENT144

351. SECTION 23.1435 HYDRAULIC SYSTEMS. (RESERVED)145

352. SECTION 23.1441 OXYGEN EQUIPMENT AND SUPPLY. (RESERVED)145

353. SECTION 23.1447 EQUIPMENT STANDARDS FOR OXYGEN

DISPENSING UNITS. (RESERVED)145

354. SECTION 23.1449 MEANS FOR DETERMINING USE OF OXYGEN.

(RESERVED)145

355. SECTION 23.1457 COCKPIT VOICE RECORDERS. (RESERVED)145

356. SECTION 23.1459 FLIGHT RECORDERS. (RESERVED)145

357.-364. RESERVED145

CHAPTER 6. OPERATING LIMITATIONS AND INFORMATION146

365. SECTION 23.1501 GENERAL146

366. SECTION 23.1505 AIRSPEED LIMITATIONS146

367. SECTION 23.1507 MANEUVERING SPEED146

368. SECTION 23.1511 FLAP EXTENDED SPEED146

369. SECTION 23.1513 MINIMUM CONTROL SPEED146

370. SECTION 23.1519 WEIGHT AND CENTER OF GRAVITY146

371. SECTION 23.1521 POWERPLANT LIMITATIONS. (RESERVED)146

372. SECTION 23.1523 MINIMUM FLIGHT CREW. (RESERVED)147

373. SECTION 23.1523 MINIMUM FLIGHT CREW147

374. SECTION 23.1524 MAXIMUM PASSENGER SEATING

CONFIGURATION151

375. SECTION 23.1525 KINDS OF OPERATION151

376. SECTION 23.1527 MAXIMUM OPERATING ALTITUDE151

377.-386. RESERVED152

387. SECTION 23.1541 GENERAL152

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388. SECTION 23.1543 INSTRUMENT MARKINGS: GENERAL152

389. SECTION 23.1545 AIRSPEED INDICATOR152

390. SECTION 23.1547 MAGNETIC DIRECTION INDICATOR152

391. SECTION 23.1549 POWERPLANT INSTRUMENTS153

392. SECTION 23.1551 OIL QUANTITY INDICATOR. (RESERVED)153

393. SECTION 23.1553 FUEL QUANTITY INDICATOR. (RESERVED)153

394. SECTION 23.1555 CONTROL MARKINGS153

395. SECTION 23.1557 MISCELLANEOUS MARKINGS AND PLACARDS.

(RESERVED)153

396. SECTION 23.1559 OPERATING LIMITATIONS PLACARD.

(RESERVED)153

397. SECTION 23.1561 SAFETY EQUIPMENT153

398. SECTION 23.1563 AIRSPEED PLACARDS153

399. SECTION 23.1567 FLIGHT MANEUVER PLACARD153

400.-409. RESERVED153

410. SECTION 23.1581 GENERAL153

411. SECTION 23.1583 OPERATING LIMITATIONS156

412. SECTION 23.1585 OPERATING PROCEDURES157

413. SECTION 23.1587 PERFORMANCE INFORMATION158

414. SECTION 23.1589 LOADING INFORMATION.

See GAMA Specification 1159

415.-424. RESERVED159

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APPENDICES

Appendix Number Figure Number Title Page Number

APPENDIX 1 Power Available A1-1

Figure A1-1 Brake Horsepower Versus Pressure Altitude A1-5 Figure A1-2 Turbocharged Brake Horsepower Versus Altitude A1-7

APPENDIX 2 Climb Data Reduction A2-1

Figure A2-1 Coefficient of Drag Versus Coefficient of Lift A2-3

APPENDIX 3 Minimum Control Speed Extrapolation to Sea Level A3-1

Table A3-1 Flight Test Data A3-3 Table A3-2 Tabulated Thrust Horsepower Available A3-5 Figure A3-1 Thrust Horsepower at Sea Level A3-5

APPENDIX 4 FAR 23 Manuals, Markings and Placards Checklist A4-1

APPENDIX 5 Guide for Preparing Airplane Flight Manual and Pilot’s Operating Handbook Supplements A5-1

APPENDIX 6 Sample Kinds of Operating Equipment List A6-1

APPENDIX 7 Useful Information A7-11

Figure A7-1 U.S. Standard Atmosphere A7-3 Figure A7-2 Temperature Conversion Chart A7-7 Figure A7-3 Determination of Air Temperature in A7-9 Relation to International Standard Atmosphere Figure A7-4 Density/Pressure Altitude Conversion A7-11 Figure A7-5 Compressibility Correction to CAS A7-13 Figure A7-6 Altimeter Error vs. CAS A7-15 Figure A7-7 Temperature Ram Rise A7-17 Figure A7-8 Stall Speed at Bank Angle A7-19 Figure A7-9 Vertical Acceleration Versus Angle of Bank A7-21 Figure A7-10 Flight Path Velocity - Knots (TAS) A7-23

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Appendix Number Figure Number Title Page Number

Figure A7-11 Takeoff and Landing Crosswind Component

- Knots A7-27

APPENDIX 8 Conversion Factors Table A8-1

APPENDIX 9 Airspeed Calibrations A9-1

Figure A9-1 Error Analysis of Ground Course Method A9-3

Figure A9-2 Ground Airspeed Calibration A9-4 Table A9-1 Sample Speed Course Data and Data Reduction A9-11 Figure A9-3 Sketches of Trailing Static Bomb & the Trailing Static Cone A9-5 Figure A9-4 Typical Position Error Correction Data for an Aircraft A9-6 Figure A9-5 Typical Position Error Corrections Data for an Aircraft A9-7 Figure A9-6 Tower Fly-By Method A9-16 Figure A9-7 Trapped Static Source Schematic A9-21 Table A9-2 Trapped Static Data Reduction A9-23 Figure A9-8 Ground Airspeed Calibration A9-27 Table A9-3 Sample Ground Airspeed Calibration Using a Distance Measuring Unit A9-31

APPENDIX 10 Guide for Determining Climb A10-1 Performance after STC Modifications

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ILLUSTRATIONS

The first block of digits in the figure number denotes the associated paragraph number. The second block of digits denotes the figure number within the paragraph.

Figure Number Title Page Number

17-1 Stall Speed 16 17-2 Propeller Coefficients 18 17-3 Zero Thrust 18 21-1 Accelerate-Stop Time Delays 32 23-1 Takeoff Distance - Critical Engine Failure Recognized at V1 40 23-2 Takeoff Distance All Engines Operating 40 23-3 Takeoff Run - Critical Engine Failure Recognized at V1 41 23-4 Takeoff Run - All Engines Operating 41 23-5 Clearway Profiles 42 24-1 Takeoff Segments and Nomenclature 43 24-2 Net Takeoff Flight Path 44 25-1 Observed Data 46 25-2 Rate of Climb vs. Airspeed 47 26-1 Rate of Climb and Speeds 48 27-1 Landing Time Delays 55 51-1 Stick Force Per G 70 70-1 Static Longitudinal Stability Data 73 70-2 Low Speed Instabilities; Normal, Utility, and Acrobatic Airplanes 74 70-3 Low Speed Instabilities; Commuter Airplanes 74 71-1 Static Longitudinal Stability Data over Complete Speed Range 75 72-1 Static Longitudinal Stability Plot (Cruise Condition) 77 100-1 Spin Evaluation Configuration Matrix 93 256-1 Carburetor Air Heat Rise Calculations 125 256-2 Carburetor Air Heat Rise Plots 126

TABLES

The first block of digits in the table number denotes the associated paragraph number. The second block of digits denotes the table number within the paragraph.

Table Number Title Page Number

6-1 Tolerances 3 6-2 Corrections to Standard Value Parameter 3 6-3 Sample Portion of Airspeed Indicator Calibration 5 27-1 WAT Chart 49 51-1 Procedures 69 166-1 Sample of CO-concentration Matrix 107 287-1 Light Duration 131

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