Federal Aviation Administration, DOT

Section 27.1585

contents if the complexity of the manual indicates a need for it.
(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)))
[Amdt. 27-14, 43 FR 2325, Jan. 16, 1978]

Section 27.1583 Operating limitations.
(a) Airspeed and rotor limitations. Information necessary for the marking of
airspeed and rotor limitations on, or
near, their respective indicators must
be furnished. The significance of each
limitation and of the color coding must
be explained.
(b) Powerplant limitations. The following information must be furnished:
(1) Limitations required by Section 27.1521.
(2) Explanation of the limitations,
when appropriate.
(3) Information necessary for marking the instruments required by
SectionSection 27.1549 through 27.1553.
(c) Weight and loading distribution.
The weight and center of gravity limits
required by SectionSection 27.25 and 27.27, respectively, must be furnished. If the variety of possible loading conditions warrants, instructions must be included to
allow ready observance of the limitations.
(d) Flight crew. When a flight crew of
more than one is required, the number
and functions of the minimum flight
crew determined under Section 27.1523 must be
furnished.
(e) Kinds of operation. Each kind of
operation for which the rotorcraft and
its equipment installations are approved must be listed.
(f) [Reserved]
(g) Altitude. The altitude established
under Section 27.1527 and an explanation of
the limiting factors must be furnished.

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(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)))

mation concerning any normal and
emergency procedures and other information necessary for safe operation,
including takeoff and landing procedures and associated airspeeds. The
manual must contain any pertinent information including - 
(1) The kind of takeoff surface used
in the tests and each appropriate
climbout speed; and
(2) The kind of landing surface used
in the tests and appropriate approach
and glide airspeeds.
(b) For multiengine rotorcraft, information identifying each operating condition in which the fuel system independence prescribed in Section 27.953 is necessary for safety must be furnished, together with instructions for placing
the fuel system in a configuration used
to show compliance with that section.
(c) For helicopters for which a VNE
(power-off)
is
established
under
Section 27.1505(c), information must be furnished to explain the VNE (power-off)
and the procedures for reducing airspeed to not more than the VNE (poweroff) following failure of all engines.
(d) For each rotorcraft showing compliance with Section 27.1353 (g)(2) or (g)(3), the
operating procedures for disconnecting
the battery from its charging source
must be furnished.
(e) If the unusable fuel supply in any
tank exceeds five percent of the tank
capacity, or one gallon, whichever is
greater, information must be furnished
which indicates that when the fuel
quantity indicator reads  - zero -  in
level flight, any fuel remaining in the
fuel tank cannot be used safely in
flight.
(f) Information on the total quantity
of usable fuel for each fuel tank must
be furnished.
(g) The airspeeds and rotor speeds for
minimum rate of descent and best glide
angle as prescribed in Section 27.71 must be
provided.

[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as
amended by Amdt. 27-2, 33 FR 965, Jan. 26,
1968; Amdt. 27-14, 43 FR 2325, Jan. 16, 1978;
Amdt. 27-16, 43 FR 50599, Oct. 30, 1978]

(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)))

Section 27.1585 Operating procedures.
(a) Parts of the manual containing
operating procedures must have infor-

[Amdt. 27-1, 32 FR 6914, May 5, 1967, as
amended by Amdt. 27-14, 43 FR 2326, Jan. 16,
1978; Amdt. 27-16, 43 FR 50599, Oct. 30, 1978;
Amdt. 27-21, 49 FR 44435, Nov. 6, 1984]

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