MAIN ROTOR OVERSPEED
* 127% ** 137%
*** 142% ENGINE % RPM 1.2
12.SECOND TRANSIENT  105% . 107% 
TRANSIENT  101% . 105% 
CONTINUOUS  95% . 101% 
MINIMUM EXCEPT FOR IDLE AND TRANSIENT  91% 

AVOID OPERATIONS IN 20% . 40%
AND 60% . 90% RANGE EXCEPT
DURING START AND SHUTDOWN

FUEL QUANTITY
NORMAL 200 . 1500 LBS
PRECAUTIONARY 0 . 200 LBS
LEGEND
RED
YELLOW
GREEN
DIGITAL READOUT

% RPM
TEST RTR OVERSPEED * ** ***

1R2
130

130
120
120
110
110
105
105
100

100
95
95
90
90
70
70
30
30
0
0

1R2

FUEL

QTY LB X 100

12

TOTAL
FUEL

MAIN ROTOR % RPM R POWER ON TRANSIENT 101% . 107% CONTINUOUS
95% . 101%
MINIMUM EXCEPT FOR 91% IDLE AND TRANSIENT
POWER OFF (AUTOROTATION) MAXIMUM 110% TRANSIENT 105% . 110% NORMAL 90% . 105%

AIRSPEED 
MAXIMUM  193 KNOTS 
REFER TO SECTION V FOR ADDITIONAL AIRSPEED LIMITATIONS  SA AB0451 

Figure 5-1. Instrument Markings (Sheet 1 of 3)

ENGINE Ng
10.SECOND 102% . 105% TRANSIENT
30.MINUTE 99% . 102% LIMIT
CONTINUOUS  0 . 99%

ENGINE OIL
TEMPERATURE

ENGINE OIL PRESSURE
150 OC

MAXIMUM 100 PSI 30.MINUTE LIMIT 135 .150OC
MAXIMUM
CONTINUOUS  20 . 100 PSI*
CONTINUOUS .50 .135OC * 35 PSI MINIMUM AT 90% Ng AND ABOVE

LEGEND 
RED 
YELLOW 
GREEN 
DIGITAL 
READOUT  AB0452_1 
SA 
Figure 5-1. Instrument Markings (Sheet 2 of 3)

TURBINE GAS
TEMPERATURE

10.SECOND 850 . 886OC TRANSIENT
START ABORT 850OC LIMIT
30.MINUTE 775 . 850OC LIMIT
NORMAL 0 . 775OC
MAIN TRANSMISSION
OIL TEMPERATURE

MAXIMUM 120OC
PRECAUTIONARY 105 .120OC
CONTINUOUS .50 .105OC
ENGINE % TRQ
10.SECOND
TRANSIENT DUAL.ENGINE 100% . 125% SINGLE.ENGINE 110% . 135%
CONTINUOUS 0% . 110% SINGLE.ENGINE ONLY
CONTINUOUS 0% . 100% DUAL.ENGINE

TGT
TEMP

OC X 100
9
8
7
6
5
4
2
0
12

TGT

% TRQ 
 

140 120 100 80 60 40 20 0 12  140 120 100 80 60 40 20 0 
12 
 

XMSN
TEMP PRESS OC X 10 PSI

9 16

8 MAIN TRANSMISSION
12

OIL PRESSURE
7
10

MAXIMUM 130 PSI 6
8
PRECAUTIONARY 65 . 130 PSI
5
6
CONTINUOUS 30 . 65 PSI
4
4
IDLE AND 20 . 30 PSI TRANSIENT 3

0
MINIMUM 20 PSI

.4 0
AB0452_2A
SA

Figure 5-1. Instrument Markings (Sheet 3 of 3)
Change 4 5-5

Section III POWER LIMITS
5.8 ENGINE LIMITATIONS.
5.8.1 Engine Power Limitations. The limitations which are presented in Figure 5-2, present absolute limita-
tions, regardless of atmospheric conditions. For variations in power available with temperature and pressure altitude, refer to the TORQUE AVAILABLE charts in Chapter 7.
5.8.2 Engine % RPM Limitations. Transient % RPM 1 or 2 operation in yellow range (101% to 105%) is not recommended as good operating practice. However no damage to either engine or drive train is incurred by opera-tion within this range. Momentary transients above 107% Np are authorized for use by maintenance test pilots during autorotational rpm checks.
　
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