OPERATING LIMITS AND RESTRICTIONS
Section I. GENERAL
This chapter identifies or refers to all important
operating limits and restrictions that shall be observed
during ground and flight operations.
The operating limitations set forth in this chapter are the
direct result of design analysis, tests, and operating
experiences. Compliance with these limits will allow the
pilot to safely perform the assigned missions and to
derive maximum utility from the aircraft. Limits
concerning maneuvers, weight, and center of gravity are
also covered in this chapter.
EXCEEDING OPERATIONAL LIMITS.
Anytime an operational limit is exceeded, an appropriate
entry shall be made on DA Form 2408-13. Entry shall
state what limit or limits were exceeded, range, time
beyond limits, and any additional data that would aid
maintenance personnel in the maintenance action that
may be required.
Section II. SYSTEM LIMITS
MINIMUM CREW REQUIREMENTS.
The minimum crew required for aircraft operation is two
pilots. Additional crewmembers as required, will be
added at the discretion of the commander, in
accordance with pertinent Department of the Army
Instruments which display operating limitations are
illustrated in figure 5-1. The operating limitations are
color coded on the instrument faces. Color coding of
each instrument is explained in the illustration.
INSTRUMENT MARKING COLOR CODES.
Operating limitations and ranges are illustrated by the
colored markings which appear on the dial faces of
engine, flight, and utility system instruments. Red
markings indicate the limit above or below which
continued operation is likely to cause damage or shorten
life. The green markings indicate the safe or normal
range of operation. The yellow markings indicate the
range when special attention should be given to the
operation covered by the instrument. Operation is
permissible in the yellow range, but should be avoided.
White markings on the airspeed indicator denote the
flap operating range. The blue marking on the airspeed
indicator denotes best rate of climb with one engine
inoperative, at maximum gross weight, maximum
forward c.g., sea level standard day conditions.
The maximum propeller overspeed limit is 1870 RPM
(transient, 20 seconds maximum). Propeller speeds
above 1700 RPM indicate failure of the constant speed
governor. Propeller speeds above 1802 RPM indicates-
failure of both the constant speed and overspeed
The starters are limited to an operating period of 40
seconds ON, then 15 minutes OFF, 40 seconds ON,
then 30 minutes OFF. Contact maintenance personnel
for assistance if no engine start occurs during cycle
noted in this paragraph.
An autopilot preflight check must be conducted
and found satisfactory prior to each flight on which the
autopilot is to be used.
A pilot must be seated at the flight controls with
the seat belt fastened when the autopilot is in operation.
Operation of the autopilot and yaw damper is
prohibited during takeoff and landing, and below 200
feet above terrain. Maximum speed for autopilot
operation is 246 KIAS to 11,500 feet, then 0.47 Mach to