566
14 CFR Ch. I (1–1–19 Edition)
§ 27.1587
§ 27.1587
Performance information.
(a) The Rotorcraft Flight Manual
must contain the following informa-
tion, determined in accordance with
§§ 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 de-
scent, in-ground effect and out-of-
ground effect hovering ceilings, to-
gether with the corresponding air-
speeds and other pertinent information
including the calculated effects of alti-
tude and temperatures;
(ii) The maximum weight for each al-
titude and temperature condition at
which the rotorcraft can safely hover
in-ground effect and out-of-ground ef-
fect 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 perform-
ance 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 Rotor-
craft Flight Manual;
(iii) For reciprocating engine-pow-
ered rotorcraft, the maximum atmos-
pheric temperature at which compli-
ance with the cooling provisions of
§§ 27.1041 through 27.1045 is shown; and
(iv) Glide distance as a function of al-
titude when autorotating at the speeds
and conditions for minimum rate of de-
scent and best glide as determined in
§ 27.71.
(b) The Rotorcraft Flight Manual
must contain—
(1) In its performance information
section any pertinent information con-
cerning the takeoff weights and alti-
tudes used in compliance with § 27.51;
and
(2) The horizontal takeoff distance
determined in accordance with
§ 27.65(a)(2)(i).
(Secs. 313(a), 601, 603, 604, and 605 of the Fed-
eral 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]
§ 27.1589
Loading information.
There must be loading instructions
for each possible loading condition be-
tween the maximum and minimum
weights determined under § 27.25 that
can result in a center of gravity beyond
any extreme prescribed in § 27.27, as-
suming any probable occupant weights.
A
PPENDIX
A
TO
P
ART
27—I
NSTRUCTIONS
FOR
C
ONTINUED
A
IRWORTHINESS
A27.1
General.
(a) This appendix specifies requirements
for the preparation of Instructions for Con-
tinued Airworthiness as required by § 27.1529.
(b) The Instructions for Continued Air-
worthiness for each rotorcraft must include
the Instructions for Continued Airworthiness
for each engine and rotor (hereinafter des-
ignated ‘products’), for each appliance re-
quired by this chapter, and any required in-
formation 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 rotor-
craft, the Instructions for Continued Air-
worthiness 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 In-
structions 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 Air-
worthiness 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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