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 187–198
Page 199Open in PDF

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-,/ " I.)" \ / V 11/16/2011 AC 23-8C Appendix 3 Table A3-2 - Tabulated Thrust Horsepower Available and Calculated VMC VC (KCAS) SHAFT HORSEPOWER P THRUST

HORSEPOWER

AVAILABLE AT

SEA LEVEL

CALCULATED VMC C2 = 1394.482 90 1050 .610 640.5 96.3 95 1050 .640 672.0 97.9 100 1050 .665 698.3 99.1 105 1050 .688 722.4 100.2 Figure A3-1 - Thrust Horsepower at Sea Level 85 90 95 100 105 VCAS ­ KNOTS

SEA LEVEL STD. DAY VMC

CALCULATED

VMC VALUES

THRUST HORSEPOWER

AVAILABLE AT SEA LEVEL 620 640 660 680 700 720 740

THRUST HORSEPOWER AT SEA LEVEL A3-3

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Primary FAR Support FAR Description Manual Mark Placard Sign 11/16/2011

23.25(a)(2) 23.1557(b) Ib (utility and aerobatic)

23.31(a) 23.31(b) 23.1557(a) Appendix 4 FAR-23 Manuals, Markings, & Placards Checklist

23.373(a)

23.415(€) Maximum weight for tie-down

23.671(b) Identification of controls

23.672(c)(2)

23.677(a)

23.685(d)

23.733(b)

23.777(a)

23.777(h)(1)

23.777(h)(2) in red Indication of tank or function selected for electronic fuel selector. Closed position indicated

23.777(g)(3) Red marking of OFF position of fuel valve selector

23.783(c)(3)-(4) Marking of means of opening external doors

23.785(h) wearing a parachute

23.787(a)(1) Placard for maximum weight capacity of baggage or cargo compartment

23.791 observe other seats

23.807(b)(3) Marking of emergency exit location and operation

23.811(a) External marking of means of opening doors and exits **** * ** *

23.811(b) Internal sign for exits and doors for commuter category airplanes × ×

23.841(b)(7) Warning placard if maximum differential cabin pressure and landing loads exceed limit

23.853(c), (c)(2) Placard or illuminated sign prohibiting smoking if/when applicable

23.853(d)(1) "No cigarette disposal" placard on/near cach disposal receptacle door for commuter category

23.853(d)(2) "No smoking" placards required for lavatories for commuter category

23.903(d) 23.1581(a)(2) Marking or placard for piston engine start techniques and limitations

23.903(e)(1) 23.1581(a)(2) Marking or placard for turbine engine start techniques and limitations

23.903(€)(3) 23.1581(a)(4) Marking or placard for turbine engine in-flight restart techniques and limitations Appendix 4 AC 23-8C

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Marking such that pusher propeller disk is conspicuous 11/16/2011

12.1581(a)(2) Turbocharger operating procedures and limitations

23.1555(c)(3) Placard for operating instructions for use of auxiliary fuel tank

23.1557(c) Marking of fuel tank filler Placard for fuel jettisoning means if prohibited in some aerodynamic configurations

23.1557(c) Marking oil filler tank connections

23.1041 Compliance with § 23.1041 must be shown for all flight phases with the procedures established in AFM (turbines)

23.1041 Compliance with §23.1041 must be shown for the climb/descent with the procedures established in AFM (pistons) Marking coolant tank filler connections

23.1555(a) Marking of powerplant controls Labeling of equipment as to its identification, function and/or operating limitations Instrument markings on electronic displays

23.1541(a)(2) Provision of alternate static correction card, if required

23.1547(e) Placard for magnetic indicator deviations of more than 10° Marking of direction of motion of autopilot controls Marking of appropriate units on fuel quantity indicator XXXX Marking of essential circuit breakers and fuses Marking of switches as to operation and circuit controlled

23.1585(a) Recommended procedures for use of ice protection equipment Placard for oxygen flow, duration and warning of hot generator element X

23.1541- Operating limitations and other information necessary for safe operation should be

23.1589 established and furnished to the crew

23.1545-23.1567 Markings and placards specified by §§23.1545-23.1567 Additional information, markings and placards required for safe operation Specifies characteristics of markings and placards Select one category for basis for markings and placards for multi-category airplanes Placards and marking information for all certified categories must be furnished in the AFM Alignment and visibility of instrument markings Marking of speeds on ASI

23.1545(b) Marking of VNE, caution range, flap operating range, OEI en-route climb/descent speed for Appendix 4 AC 23-8C pistons less than 6000 Ib, VMC for pistons less than 6000 Ib.

23.1545(c) Indication of variation of VNE or VNO with altitude

23.1545(đ) Indication of variation of VMO/MMO with altitude or lowest value

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23.903(e)(1) 23.903(e)(3) 23.1581(a)(2) 23.1581(a)(4) Marking or placard for turbine engine in-flight restart techniques and limitations Marking or placard for turbine engine start techniques and limitations XX X 1102/91/11

23.905(f) Marking such that pusher propeller disk is conspicuous

23.909(€) 12.1581(a)(2) Turbocharger operating procedures and limitations

23.955(d) (2) 23.1555(c)(3) Placard for operating instructions for use of auxiliary fuel tank

23.973(a) 23.1557(c) Marking of fuel tank filler

23.1001(g) Placard for fuel jettisoning means if prohibited in some aerodynamic configurations

23.1013(c) 23.1557(c) Marking oil filler tank connections

23.1045(a) 23.1041 Compliance with § 23.1041 must be shown for all flight phases with the procedures established in AFM (turbines)

23.1047 23.1041 Compliance with §23.1041 must be shown for the climb/descent with the procedures established in AFM (pistons)

23.1061(c) Marking coolant tank filler connections

23.1141(a) 23.1555(a) Marking of powerplant controls

23.1301(b) Labeling of equipment as to its identification, function and/or operating limitations

23.1311(a)(7) Instrument markings on electronic displays

23.1325(b)(3) 23.1541(a)(2) Provision of alternate static correction card, if required

23.1327(b) 23.1547(€) Placard for magnetic indicator deviations of more than 10°

23.1329(d) Marking of direction of motion of autopilot controls

23.1337(b) Marking of appropriate units on fuel quantity indicator

23.1357(d) Marking of essential circuit breakers and fuses

23.1367(d) Marking of switches as to operation and circuit controlled

23.1419(a) 23.1585(a) Recommended procedures for use of ice protection equipment

23.1450(c) Placard for oxygen flow, duration and warning of hot generator element

23.1501 23.1541- Operating limitations and other information necessary for safe operation should be

23.1589 established and furnished to the crew

23.1541(a)(1) 23.1541(a)(2) 23.1545-23.1567 Markings and placards specified by §§23.1545-23.1567 Additional information, markings and placards required for safe operation XXXXX

23.1541(b) Specifies characteristics of markings and placards

23.1541(c)(1) Select one category for basis for markings and placards for multi-category airplanes

23.1541(c)(2) Placards and marking information for all certified categories must be furnished in the AFM

23.1543 Alignment and visibility of instrument markings

23.1545(a) Marking of speeds on ASI

23.1545(b) Marking of VNE, caution range, flap operating range, OEI en-route climb/descent speed for pistons less than 6000 lb, VMC for pistons less than 6000 1b.

23.1545(c) Indication of variation of VNE or VNO with altitude

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23.1545(đ) Indication of variation of VMO/MMO with altitude or lowest value 11/16/2011

23.1547(a) Marking of conditions for, and calibration of, magnetic direction indicator

23.1549(a) Marking of powerplant instruments-red radial line for maximum and minimum operating limits

23.1549(b) Marking of powerplant instruments - green arc for normal range

23.1549(c) Marking of powerplant instruments-yellow arc for caution and take-off range

23.1549(c) Marking of powerplant instruments-red arc for restricted vibration range

23.1551 Marking of oil quantity indicator

23.1553 23.1337(b)(1) Red radial marking at specified zero reading

23.1555(a) Marking of cockpit control as to function and method of operation

23.1555(b) Marking of secondary controls

23.1555(c)(1) Marking of powerplant fuel controls-fuel selector position

23.1555(c)(2) Marking of powerplant fuel controls-fuel tank sequence Placard stating conditions under which maximum usable fuel may be used from restricted

23.1555(c)(3) 23.955(d)(2) usage tank

23.1555(c)(4) Marking of powerplant fuel controls-multi-engine fuel selector position XXXXX

23.1555(d)(1) Marking of usable fuel at indicator, if applicable

23.1555(d)(2) Marking of usable fuel at selector, if applicable

23.1555(e)(1) Marking of landing gear position indicator

23.1555(e)(2) Marking of emergency controls red and of method of operation

23.1557(a) Placard for baggage, cargo and ballast for weight and content

23.1557(b) 23.25(c)(2) Placard for seats not capable of carrying more than 170 lb.

23.1557(c)(1)(i) 23.973(a) Marking of fuel filler openings (piston) XXXX

23.1557(c)(1)(ii) 23.973(a) Marking of fuel filler openings (turbine) and AFM requirement

23.1557(c)(2) Marking of oil filler openings and AFM requirement

23.1557(c)(3) Marking of coolant filler openings

23.1557(d) Placard for emergency exits and controls

23.1557(e) Marking of system voltage of each DC installation

23.1559(a)(1) Placard stating that airplane must be operated in accordance with AFM

23.1559(a)(2) Placard stating the certified category to which placards apply

23.1559(b) For multi-category airplanes, a placard stating that other limitations are contained in the AFM Appendix 4

23.1559(c) 23.1525 Placard specifying the kinds of operation

23.1561(a) Marking of safety equipment as to method of operation

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23.1561(b) 11/16/2011

23.1563(a) Placard of VA close to ASI

23.1563(b)

23.1563(c) 23.1525 Ib and turbines

23.1567(a) r normal category airplanes

23.1567(b)(1) gory airplanes es that do not meet the

23.1567(b)(2) aerobatic spin requirements ded entry airspeed; also stating

23.1567(c)

23.1567(đ) om a spin ntain information required by

23.1581(a) 23.1583- 23.1589 ration and information

23.1583- and segregated from

23.1581(b)(1) 23.1589 unapproved information

23.1581(b)(s)(i) 23.1583 shed from other parts of the

23.1581(b)(2)(ii) 23.1589 23.1585- resented in a manner to 6000 1b) acceptable

23.1581 (c) ppropriate instruments and placards

23.1581(d) fied, presented as indicated airspeeds fixed container readily

23.1581 (€) accessible to the pilot tion of revisions and/or

23.1583 23.1581 (f) amendments following: Appêndix 4

23.1583(a)(1) 23.1545 equired in $23.1545

23.1583(a)(2)

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VMO/MMO and a statement that this speed must not be deliberately exceeded without 11/16/2011

23.1583(a)(3)(1) authorization (for turbine powered commuters) If an airspeed limitation is based on compressibility effects, a statement to this effect,

23.1583(a)(3)(i) further information and the recommended recovery procedure (for further powered commuters) The airspeed limits must be shown in terms of VMO/MMO for (turbine powered

23.1583(a)(3)(i1) commuters)

23.1583(b)(1),(2) 23.1521 Powerplant limitations required by § 23.1521 and explanations, when appropriate X

23.1549- Information necessary for marking powerplant instruments required in §23.1549 to

23.1583(b)(3)

23.1553 §23.1553

23.1583(c)(1) Maximum weight

23.1583(c)(2) Maximum landing weight (if less than maximum weight)

23.1583(c)(3) 23.63(c)(1) MTOW for each airdrome altitude and temperature selected by the applicant at which the airplane complies with §23.63(c)(1) (not for pistons less than 6000 Ib and commuters) For commuter airplanes, the MTOW for each airdrome altitude and temperature selected by

23.63(d)(1), the applicant at which the airplane complies with the climb requirements of §23.63(d)(1),

23.1583(c)(4) 23.55,23.59(a) the accelerate-stop distance determined in §23.55 is acceptable, the take-off distance

23.59(b) determined in §23.59(a) is acceptable and, optionally, the take-off run determined in §23.59(b) is acceptable For commuter airplanes, the maximum landing weight for each airdrome altitude selected

23.1583(c)(5) 23.63(d)(2), by the applicant at which the airplane complies with the climb requirements of

23.75,23.343 §23.63(d)(2), the landing distance determined in §23.75 is acceptable and the maximum zero wing fuel weight established in §23.343

23.1583(d) The established center of gravity limits

23.1583(€) 23.221(c) Authorized maneuvers, appropriate airspeed limitations, recommended entry speeds, spin recovery procedures and unauthorized maneuvers according to category

23.1583(f) Positive limit load factors and, for aerobatic airplanes, the negative limit load factors

23.1583(g) 23.1523 Number and functions of the minimum flight crew

23.1583(h) 23.1525 Lists of kinds of operation according to §23.1525, installed equipment affecting any operating limitation and identification as to equipment's required operational status

23.1583(I) 23.1527 Maximum operating altitude

23.1583(j) Maximum passenger seating configuration

23.1583(k) 23.1583(1) Maximum allowable lateral fuel loading differential, if less than the maximum possible Maximum allowable load and maximum intensity of loading for baggage and cargo Appêndix 4 compartments or zones

23.1583(m) Any limitations on the use of airplane systems and equipment

23.1583(n) Where appropriate, maximum and minimum ambient temperatures for operation

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23.1583(o) Any restrictions on smoking in the airplane 11/16/2011

23.1583(p) 23.1587(a)(5) 23.45(g); Types of surface on which operation may be conducted (see §34.45(g) and §23.1587(a)(5) Information concerning normal, abnormal and emergency procedures and other information

23.1585(a) necessary for safe operation and achievement of scheduled performance, including

23.1585(a)(1) Explanation of significant or unusual flight or ground handling characteristics X

23.1585(a)(2) procedures Maximum demonstrated values of crosswind for take-off and landing and associated

23.1585(a)(3) A recommended speed for flight in rough air

23.1585(a)(4) 23.903(f) Procedures for restarting any engine in flight, including the effects of altitude

23.1585(a)(5) 23.73, 23.75 accordance with §23.73 and §23.75 and transition to the balked landing condition Procedures, speeds and configurations for making a normal approach and landing in

23.1585(b) 23.71 For all single-engine airplanes, procedures, speeds and configurations for a glide following engine failure and the subsequent forced landing

23.1585(c)(1) For all twin-engine airplanes, procedures, speeds and configurations for making an approach and landing with one engine inoperative For all twin-engine airplanes, procedures, speeds and configurations for making a go-

23.1585(c)(2) around with one engine inoperative, the conditions under which it can be performed safely or a warning against attempting a go-around

23.51(a),(b) For all normal, utility and aerobatic airplanes, procedures, speeds and configurations for

23.1585(d)(1) 23.53(a), (b) making a normal take-off (§§23.51(a), (b) 23.53(a), (b)) and subsequent climb (§§23.65,

23.65,23.69(a) 23.69(a))

23.1585(d)(2) For all normal, utility and aerobatic airplanes, procedures for abandoning a take-off For all normal, utility and aerobatic twin-engine airplanes, procedures and speeds for

23.1585(€)(1) continuing a take-off following engine failure, the conditions under which it can be performed safely or a warning against continuing the take-off

23.1585(€)(2) 23.67,23.69(a) For all normal, utility and aerobatic twin-engine airplanes, procedures and speeds for continuing a climb following engine failure after take-off (§23.67) or en-route (§23.69(b))

23.1585(f)(1) For commuter category airplanes, procedures, speeds and configurations for making a normal take-off

23.1585(f)(2) 23.55 For commuter category airplanes, procedures and speeds for carrying out an accelerate-stop

23.57, For commuter category airplanes, procedures and speeds for continuing a take-off following Appêndix 4

23.1585(F)(3) 23.59(a)(1), engine failure (§23.59(a)(1) and for following the flight path (§$23.57, 23.61(a))

23.61(a)

23.1585(g) 23.953 For twin-engine airplanes, information and instructions regarding fuel supply independence

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23.1353(g)(2), For cach airplane showing compliance with §23.1353(g)(2) or (g)(3), the procedures for 11/16/2011

23.1585(h)

23.1353(g)(3) disconnecting the battery from its charging source

23.1585(i) Information on the total quantity of usable fuel for each tank and the effect pump failure

23.1585(j) Procedures for the safe operation of the airplane's systems and equipment, in normal use and in the event of malfunction

23.1587 23.45(b) Unless other wise presented, performance information must be provided over the altitude and temperature ranges required by §23.45(b)

23.1587(a)(1) and the effect on these stalling speeds of bank angles up to 60° Stalling speeds Vso and Vsi at maximum weight with landing gear and wing flaps retracted

23.1587(a)(2) Steady rate and gradient of climb with all engines operating The landing distance for each airdrome altitude and standard temperature and the type of

23.1587(a)(3) surface for which it is valid The effect on landing distance of operation on other than smooth hard surfaces, when dry X The effect on landing distance of runway slope, 50% of the headwind component and 150% X of the tailwind component

23.1587(b) 23.77(a) climb/descent For normal, utility and aerobatic piston airplanes of 6000 Ib or less, the steady angle of

23.1587(c)(1) 23.53 which it is valid For normal, utility and aerobatic airplanes, the take-off distance and the type of surface for

23.1587(c)(2) 23.45(g) The effect on take-off distance of operation on other than smooth hard surfaces, when dry

23.1587(c)(3) of the tailwind component The effect on take-off distance of runway slope, 50% of the headwind component and 150%

23.1587(c)(4) 23.66 For twin piston airplanes of more than 6000 Ib MTOW and turbine airplanes, the oneengine inoperative take-off climb/descent gradient

23.1587(c)(5) 23.69(b) For twin-engine airplanes, the en-route rate and gradient of climb/descent with one-engine inoperative

23.1587(c)(6) 23.71 For single-engine airplanes, the glide performance

23.1587(d)(1) 23.55 For commuter airplanes, the accelerate-stop distance

23.1587(d)(2) 23.1587(d)(3) 23.59(a) 23.59(b) For commuter airplanes, the take-off distance For commuter airplanes, the take-off run at the applicant's option Appendix 4 AC 23-8C

23.1587(d)(4) 23.45(g) For commuter airplanes, the effect on accelerate-stop distance, take-off distance and, if determined, take-off run of operation on other than smooth hard surfaces, when dry

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For commuter airplanes, the effect on accelerate-stop distance, take-off distance and, if 11/16/2011

23.1587(d)(5) determined, take-off run of runway slope, 50% of the headwind component and 150% of the tailwind component

23.1587(d)(6) 23.61(b) For commuter airplanes, the net take-off path X

23.1587(dy(7) 23.69(b) For commuter airplanes, the en-route gradient of climb/descent with one engine inoperative For commuter airplanes, the effect on the net take-off path and the en-route gradient of

23.1587(d)(8) climb/descent with one engine inoperative, of 50% of the headwind component and 150% of the tailwind component

23.1587(d)(9) 23.63(d)(2), 75 For commuter airplanes, overweight landing performance information (the maximum X weight at which the airplane complies with $23.63(d)(2) and the landing distance in §23.75)

23.1587(d)(10) 23.1323(b).(c) For commuter airplanes, the relationship between IAS and CAS

23.1587(d)(11) 23.1325(€) For commuter airplanes, the altimeter system calibration X

23.1587(d)(7) 23.69(b) For commuter airplanes, the en-route gradient of climb/descent with one engine inoperative

23.1589(a) 23.25 The weight and location of each item of equipment that can be easily removed and was installed when the airplane was weighed

23.1589(b) 23.23, 23.25 Appropriate loading instructions for each permissible loading condition of weight and og App. G23-2,3,4 23.1529 Instructions for continued airworthiness 00 Appendix 4

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Appendix 5 Appendix 5 –Guide for Preparing Airplane Flight Manual and Pilots’s Operating Handbook Supplements

1. Introduction. An applicant is responsible for prep aring an Airplane Flight Manual (AFM) supplement when the airplane has been modified in such a manner that limitation, procedures, performance, or loading information have changed. The supplement should be prepared to reflect this supplemental information. If there is no change in one of the sections, it should so state.

a. Pilot's Operating Handbook Supplements. Refer to GAMA Specification No. 1, Revision No. 1.

b. AFM Supplements. Refer to paragraph 2 below and sample AFM.

2. General.

a. Enter name and address of applicant and document number (if used).

b. Enter make and model of the airplane. Multiple models may be used.

c. Enter registration number. Note: If more than one airplane is to be approved under this supplemental type certificate, leave this space blank on the master copy of the supplement so it can be filled in for each airplane as the modification is accomplished.

d. Enter airplane serial number. This number is on the airplane data plate. Note: If more than one airplane is to be approved under this supplemental type certificate, leave this space blank on the master copy of the supplement so it can be filled in for each airplane as the modification is accomplished. If only one airplane is to be approved, add "only" after the serial number.

e. Enter original AFM date or reissue date (if applicable).

f. Enter the type of modification or equipment installed.

g. Enter approval basis such as: Form 337, specification item number, Supplemental type Certificate Number, and so forth.

h. Enter any changed or additional limitations as a result of the modification. Follow the format of the basic AFM. If no change, state "NO CHANGE".

i. Enter any change in or additional procedures as a result of the modification. Follow the format of the basic AFM. This section may be divided into Normal and Emergency Procedures, if necessary. If no change, state "NO CHANGE".

j. Enter any change in performance as a result of the modification. If no change, state "NO CHANGE". In some cases, it is possible to show a statement similar to the following. "The performance of this airplane equipped with the Continental E-225-8 engine and Beech Model 215 propeller is equal to or better than the performance as listed in the original FAA-approved AFM."

k. Enter any change in the loading instructions, if necessitated by the change.

A5-1

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___________________________________________________________________________________ Appendix 5

l. Copy this item, as shown on the sample AFM Supplement, leaving a blank space for typing of the ACO Manager's name below the signature line. This item needs to be coordinated with the ACO prior to submitting because in some ACO's the manager does not sign the AFM.

m. Type as shown on sample AFM Supplement, leaving a blank space so date of approval can be added.

n. If the supplement requires more than one page, a cover page should be prepared in accordance with page 3 of this appendix, except that items (h), (u), (j), and (k) should be on page 2 or subsequent. Each page should have: (1) the name and address of applicant and document number; (2) AFM supplement for Make and Model; (3) "FAA-approved" and "date" of approval; and (4) page number as (Page 1 of 3).

o. For those airplanes without flight manuals, and placards are not appropriate, the document should be labeled a Supplemental Airplane Flight Manual and arranged and worded as necessary with reference to the appropriate markings and placards. Identification of the material as Limitations, Procedures, or Performance should be clearly presented.

p. If applicant revises the AFM supplements, pertaining to one airplane model, a log of revisions may be added, as follows: (This revision log also needs a signature block.)

LOG OF REVISIONS Revision No. Pages Affected Description FAA-Approved Date Note: The revision page should immediately follow the cover page.

q. Vertical bars should be placed in the margin of the revised pages to indicate changed material.

A5-2