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53 Limits
Limits
18
Aviation
Professional
02/05/2014

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Term
T5 LIMITS (PWR TURBINE EXHAUST TEMP)
Definition
PEAK MOMENTARY=900
10 MIN. MAX. OPERATION (419)=829
10 MIN. MAX. OPERATION (416A)=792
10 MIN. MAX. OPERATION (416)=773
30 MIN. MIL. OPERATION (419)=810
30 MIN. MIL. OPERATION =753
MAX CONTINUOUS OP. (419)=769
MAX CONTINUOUS OP=713

INDICATION OF HOT START= 650
INDICATION OF POST SHUTDOWN FIRE=320
Term
Ng LIMITS
Definition
GROUND IDLE= 60.5%-70%
NORMAL OP.= 60.5%-101.1%
MAX CONT. OP.=101.1%
30 Sec. TRANSIENT=102.9%
MIN. FOR ENG. START (FUEL INTRODUCE)= 20%
Term
Nf LIMITS
Definition
NORM OPS=100%-105%
MAX CONT=110%
TRANSIENT= 118%-125 (5 sec)
OVERSPEED ACTIVATES =110% +/-2
(REDUCES WF TO 75 +/- 2% Ng)
Term
Nr LIMITS
Definition
PREC RANGE (LOW)=95%-100%
PREC RANGE (HIGH)=105%-118%
MAX OPS= 118%
FLAT PITCH=104%-107%
GROSS WGHT LESS THAN 50K=100%-105%
GROSS WGHT BTWN 50K & 73,500=103%-105%

HIGH PRESS ROTOR BRAKE ENGAGE= 50% AND BELOW
LOW PRESS ROTOR BRAKE ENGAGE=25% AND BELOW
Term
TORQUE LIMITS
Definition
PREC RANGE= 100%-137%
MAX CONT=100%
MIL OPS (30 MIN)=121%
MAX OP (10 MIN)=137%
TRANSIENT (1 MIN)=160%
CLIMB FOR GW 60K AND UP=121%
CLIMB FOR GW 60K AND BELOW=110%
DUAL ENG CONTINGENCY (419)=157% (2 MIN)
Term
ENGINE OIL LIMITS (1.32 GALS)
Definition
NORM TEMP=40-135
10 MIN=136-145
MAX=145
Term
FUEL SYSTEM LIMITS
Definition
LOW FUEL CAUT LGHT- #1&3=666LBS +/- 30 (30 MIN)
#2=333LBS +/- 15 (30 MIN)

DUMP RATE=75 GPM
FUEL REM WITH AUTO DUMP SHUT OFF=30 MIN.
A/S FOR DUMP= 90-130 KIAS
MAX RATE OF DES FOR DUMP=1,500 FPM
Term
MAIN GEAR BOX OIL TEMP LIMITS
Definition
NORMAL=40-120
MAX=145
Term
MAIN GEAR BOX OIL PRESS LIMITS
Definition
MINIMUM= 25 PSI
NORMAL= 50-65 PSI
MAXIMUM=150 PSI
Term
NOSE GEAR BOX OIL TEMP LIMITS
Definition
NORMAL=40-130
MAXIMUM=145
NGB OIL HOT CAUT LGHT= 121 +/- 5.5
Term
AIRSPEED LIMITS
Definition
MAX FORWARD=150 KIAS
MAX SIDE=35 KIAS
MAX REAR=30 KIAS
LND GEAR ACTUATION=140 KIAS
EXTERNALS=150 KIAS
LND GEAR EXTENDED=150 KIAS
MAN. FLIGHT=130 KIAS
AUTO MAX GLIDE RATE=100 KIAS
AUTO MIN SINK RATE=75 KIAS
AERIAL REFUEL= 105-120 KIAS
MIN RECOVERY ALT/A/S FOR AUTO=50FT/40-50 KIAS
MIN TURN ALT/ A/S = 200 FT/60 KIAS
MIN RATE OF CLIMB IMC= 500 FPM

HOVER TURNS OF 360 DEG IN LESS THAN 15 SEC ARE PROHIBITED
Term
HYDRAULIC SYSTEM
Definition
1ST/2ND/UTILITY

MIN=2,600 PSI
NORMAL=2,600-3,300 PSI
MAX=3,300 PSI
Term
APP LIMITS
Definition
MAX ALT=10,000 FEET
MAX EXHAUST TEMP (AUTO SHUTDOWN)=621
MAX Ng=110%
LOW OIL PRESS (AUTO SHUTDOWN)=6+/-1 PSI
TIME TO WAIT AFTER ABORTED START=2 MIN
Term
WEIGHT LIMITS
Definition
DESIGN GROSS WGHT=46,500
MAX WOW= 69,750
MAX EXTERNAL=73,500
SINGLE/DUAL CAPACITY=36,000
CAP OF EACH DUAL=21,600
UTILITY HOIST MAX=600
CARGO WINCH MAX=5,000
CABIN COMPARTMENT STATIC LOAD MAX=300 PER SQ FT
Term
AOB LIMITS
Definition
GW 56,000 AND GREATER=30
GW LESS THAN 56K BUT DA 3K OR A/S 130 KIAS OR GREATER= 45
LESS THAN 56K,DA LESS THAN 3K, A/S LESS 130 KIAS=60
Term
GEAR LIMITS
Definition
NOSE GEAR TOUCHDOWN=40 KIAS
GW LESS 46,500 LBS TOUCHDOWN=672 FPM
MAX TAIL SKID STRIKE= 672 FPM
TOUCHDOWN GW 46,500-69,750= 360 FPM
Term
MISCELLANEOUS
Definition
ROTOR ENGAGE/DISENGAGE=45 KNOTS
BLADE/PYLON FOLD=45 KNOTS
MIN ON DECK FUEL= 1,200 LBS (NATOPS)= 2,000 LBS
(SOP)
REFUEL PRESS=25-55 PSI
MIN TIME FOR TURNING OFF HEATER PRIOR TO SEC AC POWER= 10 MIN
MIN POWER MARGIN FOR EXTERNAL=10%
Term
T2 (PWR TURBINE INLET TEMP)
Definition
MAX CONTINUOUS= 713 (416/A)
MAX CONTINUOUS=769 (419)
MIL (30 MIN) =753(416/A)
MIL (30 MIN)=810 (419)
MAX (10 MIN)=773 (416)
MAX (10 MIN)=792 (416A)
MAX (10 MIN)=829 (419)
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