AC 23-8C

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

Approved
November 16, 2011
Last reviewed
July 5, 2017
Cancels
AC23-8B
Family
AC 23-8 · 3 versions
Revision
C
14 CFR parts
23
Cited by
1 AD

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed October 23, 2026.

Show pages 209–220
Page 221OCROpen in PDF

Appendix 7 Figure A7-4 - Density/Pressure Altitude Conversion -10 10 20 30 40 50 60 70 80 90 100 °F

1.10 1.00 0.90 0.80 0.70 0.60 VPP. € PiPe 16000 16000 15000 15000 14000 14000 13000 13000 12000 12000 11000 - 11000 10000 • 10000 9000 9000 DENSITY ALTITUDE - FEET 8000 8000 DENSITY ALTITUDE - FEET 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 T000 1000

- 1000 - - 1000 -2000 -2000 -3000 -4000 5000 -5000 30 40 50 70 80 90 100 °F.

500 530 540 550 560 *F. ABS.

20 - 30 40 °c.

A7-6

Page 222OCROpen in PDF

11/16/2011 COMPRESSIBILITY CORRECTIONS TO OBTAIN Ve (EQUIVALENT AIRSPEED) 12 _31 10 Figure A7-5 - Compressibility Correction CAS 9 7 A7-7 180 200 220 240 260 VE (CALIBRATED AIRSPEED) ~ KNOTS Appendix 7 AC 23-8C

Page 223OCROpen in PDF

SE 11/16/2011 150 140 dh dVc 0.08865 c 1+.2 °std 1 667. 5/ 130 ASSUMES NO ERROR IN

TOTAL PRESSURE HEAD 120 AND AIRSPEED POSITION ERROR LESS THAN 10 KNOTS 110 100 Figure A7-6 - Altimeter Error vs. CAS 90 A7-8 60 50 40 15000 30 10 40 120 160 200 240 280 CALIBRATED AIRSPEED ~ KT Appendix 7 AC 23-8C

Page 224OCROpen in PDF

Outside Air Temp. Indicated Temp. (K) (x) • 1 + (recovery factor) 11/16/2011

OUTSIDE AIR TEMPERATURE 130* 190" 200" 210" 220° 230° 240° 250° 260° 270° 310° 320* 330* (*K) -90° -80° -70* -60° (°C)

1.20 30

1.14 Figure A7-7 - Temperature RAM Rise A7-9 1. 12

1.10

1.06

1.04

1.C2

1.00 INDICATED TEMPERATURE (°C) Appendix 7 AC 23-8C

0.2 0.3 0.5 0.6 0.7

MACH NUMBER, M

Page 225OCROpen in PDF

STALLING SPEED AS A FUNCTION OF ANGLE OF BANK - 11/16/2011 160 Figure A7-8 - Stalling Speed as a Function of Angle of Bank OI-LV STALL SPEED - 0° ANGLE OF BANK

STALLING SPEED AS A

FUNCTION OF ANGLE

OF BANK - B 70 VSTALLO = VSTALL AT O v cos e 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 STALL SPEED AT BANK ANGLE P Appendix 7

Page 226OCROpen in PDF

Appendıx 7 Figure A7-9 - Vectoral Acceleration Versus Angle of Bank 31653 VECTORIAL ACCELERATION VERSUS ANGLE OF BANK 8 = = cOs cos D WHERE B = ANGLE OF BANK 30 BANK ANGLE - DEGREES

3.0 A7-11

Page 227OCROpen in PDF

102/9/11 AC 23-8C Appendix 7 Figure A7-10 14% 8° 12% 6°105 95 5° 8.0% 7.0% 4° 6.0% 5.55 3° 008 5.0%

4.5% 002

4.0%

3.5% RATE OF CLIMB - feet/min 13.0%

2.5% | 2.0% 300 1*

11.55 200

1.0% 100

- 0.5% 60 80 100 120. 140 160 FLIGHT PATH VELOCITY - knots (TAS) A7-12

Page 228OCROpen in PDF

Appendix 7 Figure A7-10 (continued)

4.0% 1.5% 2°

3.0% 800 700 = 2.5% 600

2.0% RATE OF CLIMB - feet/min 5000 400 CLIMB GRADIENT ANGLE OF CLIMB 1.5% 300

1.0% 200

0.5% 100 0160 180 200 220 240 260 280 FLIGHT PATH VELOCITY - knots (TAS) A7-13

Page 229OCROpen in PDF

Appendix 7 Figure A7-11 - Takeoff and Landing Crosswind Component Chart

TAKEOFF AND LANDING CROSSWIND COMPONENT

FLIGHT PATH

RUNWAY CENTERLINE 60 0° 10° 20' 50 30° WIND 40° - VELOC HEADWIND COMPONENT ~ KNOTS 50° ANGLE, DEGREES * 60° WIND 70° 80° 90° -10 100° = 180° 160 150° - 140°1 H· 130° • 120° • 110° -20 0 10 20 30 40 50 60 CROSSWIND COMPONENT ~ KNOTS A7-14

Page 230Open in PDF

Appendix 8 Appendix 8. Conversion Factors Table LENGTH Multiply By To Obtain Centimetres 0.3937 Inches

0.03281 Feet .01 Meters Kilometres 3281 Feet

0.6214 Miles

0.5399 Nautical Miles 1093.6 Yards Meters 39.37 Inches

3.281 Feet

1.0936 Yards Statute Miles 5280 Feet

0.8690 Nautical Miles 1760 Yards Nautical Miles 6076.1 Feet

1.1508 Statute Miles WEIGHT Multiply By To Obtain Grams 0.03527 Ounces (advp)

0.002205 Pounds (advp) 1000 Milligrams

0.001 Kilograms Kilograms 2.205 Pounds (advp)

35.27 Ounces (advp) 1000 Grams Pounds (advp) 7000 Grains

16.0 Ounces

1.215 Pounds (troy) A8-1

Page 231Open in PDF

Appendix 8 VOLUME Multiply By To Obtain Cubic Centimetres -310 Litres

0.0610 Cubic Inches Cubic Feet 28317 Cubic Centimeters 1728 Cubic Inches

0.03704 Cubic Yards

7.4805 Gallons (U.S.)

28.32 Litres Cubic Inches -34.329 x 10 Gallons (U.S.)

0.01732 Quarts (U.S.)

0.0164 Litres Cubic Meters 61023 Cubic Inches

35.31 Cubic Feet

264.17 Gallons (U.S.)

1.308 Cubic Yards Gallons Imperial 277.4 Cubic Inches

1.201 Gallons (U.S.)

4.546 Litres Gallons, U.S. 231 Cubic Inches

0.1337 Cubic Feet

3.785 Litres

0.8327 Imperial Gallons 128 Fluid Ounces Fluid Ounces 29.59 Cubic Centimeters

1.805 Cubic Inches Litres 61.02 Cubic Inches

0.2642 Gallons (U.S.)

1.057 Quarts (U.S.)

A8-2

Page 232Open in PDF

Appendix 8 AREA Multiply By To Obtain Square Centimetres 0.1550 Square Inches

0.001076 Square Feet Square Feet 144 Square Inches

0.1111 Square Yards Square Inches 645.16 Square Millimeters Square Kilometres 0.3861 Square Statute Miles Square Meters 10.76 Square Feet

1.196 Square Yards Square Statute Miles 2.590 Square Kilometers A8-3