Section 27.1587
Section 27.1587

14 CFR Ch. I (1-1-19 Edition)
Performance information.

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(a) The Rotorcraft Flight Manual
must contain the following information, determined in accordance with
SectionSection 27.49 through 27.87 and 27.143(c) and
(d):
(1) Enough information to determine
the limiting height-speed envelope.
(2) Information relative to - 
(i) The steady rates of climb and descent, in-ground effect and out-ofground effect hovering ceilings, together with the corresponding airspeeds and other pertinent information
including the calculated effects of altitude and temperatures;
(ii) The maximum weight for each altitude and temperature condition at
which the rotorcraft can safely hover
in-ground effect and out-of-ground effect in winds of not less than 17 knots
from all azimuths. These data must be
clearly referenced to the appropriate
hover charts. In addition, if there are
other combinations of weight, altitude
and temperature for which performance information is provided and at
which the rotorcraft cannot land and
take off safely with the maximum wind
value, those portions of the operating
envelope and the appropriate safe wind
conditions must be stated in the Rotorcraft Flight Manual;
(iii) For reciprocating engine-powered rotorcraft, the maximum atmospheric temperature at which compliance with the cooling provisions of
SectionSection 27.1041 through 27.1045 is shown; and
(iv) Glide distance as a function of altitude when autorotating at the speeds
and conditions for minimum rate of descent and best glide as determined in
Section 27.71.
(b) The Rotorcraft Flight Manual
must contain - 
(1) In its performance information
section any pertinent information concerning the takeoff weights and altitudes used in compliance with Section 27.51;
and

(2) The horizontal takeoff distance
determined
in
accordance
with
Section 27.65(a)(2)(i).
(Secs. 313(a), 601, 603, 604, and 605 of the Federal Aviation Act of 1958 (49 U.S.C. 1354(a),
1421, 1423, 1424, and 1425); and sec. 6(c) of the
Dept. of Transportation Act (49 U.S.C.
1655(c)))
[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as
amended by Amdt. 27-14, 43 FR 2326, Jan. 16,
1978; Amdt. 27-21, 49 FR 44435, Nov. 6, 1984;
Amdt. 27-44, 73 FR 11000, Feb. 29, 2008; 73 FR
33876, June 16, 2008]

Section 27.1589

Loading information.

There must be loading instructions
for each possible loading condition between the maximum and minimum
weights determined under Section 27.25 that
can result in a center of gravity beyond
any extreme prescribed in Section 27.27, assuming any probable occupant weights.

APPENDIX A TO PART 27 - INSTRUCTIONS
FOR CONTINUED AIRWORTHINESS
A27.1

General.

(a) This appendix specifies requirements
for the preparation of Instructions for Continued Airworthiness as required by Section 27.1529.
(b) The Instructions for Continued Airworthiness for each rotorcraft must include
the Instructions for Continued Airworthiness
for each engine and rotor (hereinafter designated -products-), for each appliance required by this chapter, and any required information relating to the interface of those
appliances and products with the rotorcraft.
If Instructions for Continued Airworthiness
are not supplied by the manufacturer of an
appliance or product installed in the rotorcraft, the Instructions for Continued Airworthiness for the rotorcraft must include
the information essential to the continued
airworthiness of the rotorcraft.
(c) The applicant must submit to the FAA
a program to show how changes to the Instructions for Continued Airworthiness made
by the applicant or by the manufacturers of
products and appliances installed in the
rotorcraft will be distributed.
A27.2

Format.

(a) The Instructions for Continued Airworthiness must be in the form of a manual
or manuals as appropriate for the quantity
of data to be provided.
(b) The format of the manual or manuals
must provide for a practical arrangement.
A27.3

Content.

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