TM 1-1520-238-MTF
Change 1
5-10
AUTOROTATION ROTOR SPEED
M01-135A
ROTOR SPEED
%
GW - SUBTRACT FUEL CONSUMED FROM TAKEOFF
GROSS WEIGHT.
DA - COMPUTE USING FIGURE 5-6.
Nr - MUST BE WITHIN A RANGE OF -0 TO +3.
EXAMPLE: DA = 0, GW = 15000 LBS, RPM = 100%.
ALLOWABLE RANGE WOULD BE 100% TO 103%
RPM.
COLLECTIVE FULL DOWN
100% NR = 289 RPM
92
-3
88
0
96
1
11
2
12
13
7
-2
10
116
104
9
100
108
112
3
8
4
5
6
-1
TRANSIENT
OPERATION
POWER-OFF
NORMAL
OPERATION
POWER-OFF
Figure 5-5.
Autorotation RPM Chart
