TM 1-1520-238-10
5-14
Change 9
SLIDE TO LEFT ALONG DASHED LINES TO 7000 FEET DENSITY ALTITUDE.
MOVE LEFT TO DENSITY ALTITUDE OF ZERO FEET.
GROSS WEIGHT = 17,650 POUNDS.
ENTER AT V = 160 KT. MOVE UP TO UPPER AND LOWER ENVELOPE BOUNDARIES FOR
GROSS WEIGHT = 17,650 POUNDS
AH-64A
FLIGHT ENVELOPE
WANTED
KNOWN
METHOD
MOVE LEFT TO LOAD FACTOR SCALE, READ MAX G = 1.96, MIN G = 0.46.
AIRSPEED = 160 KTAS
MAXIMUM AND MINIMUM LOAD FACTOR
EXAMPLE
FLIGHT ENVELOPE
DATA BASIS:
DERIVED FROM FLIGHT TEST
TRUE AIRSPEED ~ KNOTS
DENSITY ALTITUDE ~ FT
200
150
100
50
0
-50
0
10000
20000
4
3
2
1
0
-1
-1
0
1
4
3
2
M01-232
DENSITY ALTITUDE = 7000 FEET
14,660 OR LESS
GROSS WEIGHT ~ LB
16,000
17,650
ABOVE 17,650 TO 21,000
NORMAL
OPERATION
PROHIBITED
OPERATION
Figure 5-3.
Flight Envelope Chart
