565 

Federal Aviation Administration, DOT 

§ 27.1585 

contents if the complexity of the man-
ual indicates a need for it. 

(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))) 

[Amdt. 27–14, 43 FR 2325, Jan. 16, 1978] 

§ 27.1583

Operating limitations. 

(a) 

Airspeed and rotor limitations. 

In-

formation 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 fol-

lowing information must be furnished: 

(1) Limitations required by § 27.1521. 
(2) Explanation of the limitations, 

when appropriate. 

(3) Information necessary for mark-

ing the instruments required by 
§§ 27.1549 through 27.1553. 

(c) 

Weight and loading distribution. 

The weight and center of gravity limits 
required by §§ 27.25 and 27.27, respec-
tively, must be furnished. If the vari-
ety of possible loading conditions war-
rants, instructions must be included to 
allow ready observance of the limita-
tions. 

(d) 

Flight crew. 

When a flight crew of 

more than one is required, the number 
and functions of the minimum flight 
crew determined under § 27.1523 must be 
furnished. 

(e) 

Kinds of operation. 

Each kind of 

operation for which the rotorcraft and 
its equipment installations are ap-
proved must be listed. 

(f) [Reserved] 
(g) 

Altitude. 

The altitude established 

under § 27.1527 and an explanation of 
the limiting factors must be furnished. 

(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. 27–2, 33 FR 965, Jan. 26, 
1968; Amdt. 27–14, 43 FR 2325, Jan. 16, 1978; 
Amdt. 27–16, 43 FR 50599, Oct. 30, 1978] 

§ 27.1585

Operating procedures. 

(a) Parts of the manual containing 

operating procedures must have infor-

mation concerning any normal and 
emergency procedures and other infor-
mation necessary for safe operation, 
including takeoff and landing proce-
dures and associated airspeeds. The 
manual must contain any pertinent in-
formation 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, infor-

mation identifying each operating con-
dition in which the fuel system inde-
pendence prescribed in § 27.953 is nec-
essary for safety must be furnished, to-
gether with instructions for placing 
the fuel system in a configuration used 
to show compliance with that section. 

(c) For helicopters for which a V

NE

 

(power-off) is established under 
§ 27.1505(c), information must be fur-
nished to explain the V

NE

(power-off) 

and the procedures for reducing air-
speed to not more than the V

NE

(power- 

off) following failure of all engines. 

(d) For each rotorcraft showing com-

pliance with § 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 § 27.71 must be 
provided. 

(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))) 

[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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