Limits

Front 1

TGT

Back 1

0-810 continuous (green)

810-851 30 mins (yellow)

851-878 10 mins for max pwr and limiter checks only (red)

878-903 2.5 mins

903-949 12 secs

949 max

Front 2

XXX

Back 2

If a limit is exceeded to the extent that a red XXX is indicated, the crew shall land as soon as practicable.

Engine torque over 150% display as red XXX.

Front 3

Engine starter limits

Back 3

1. Refer to the engine start envelope. For crossbleed starts, the receiving engine shall be at or above 24% Ng prior to advancing the PCL to IDLE.

2. Engine start with main rotor blades or tail pylon folded is prohibited.

3. The start TGT limit is 851 until idle speed is attained.

Front 4

Np

Back 4

<96 Avoid (red)

96-105 continuous (green)

105-117 20 secs (yellow)

117-120 12 secs (yellow)

120 max (red)

During engagement, extended operation in the 20-40 and 60-75 ranges may cause engine damage.

Front 5

Nr

Back 5

<96 avoid (red)

96-101 continuous (green)

101-120 precautionary (yellow)

120 max (123 max for FCF only)

127 over speed latch

Front 6

Dual Eng Tq <80KIAS

Back 6

0-120 continuous (green)

120-144 10 secs (yellow)

144 max (red)

Front 7

Dual Eng Tq >80KIAS

Back 7

0-106 continuous (green)

106-127 10 secs (yellow)

127 max (red)

Dual engine torque limits apply when both engines are above 65% torque.

Front 8

Singe eng tq

Back 8

0-135 continuous (green)

135-144 10 secs (red)

144 max

Front 9

Ng

Back 9

0-102.2 continuous

102.2-106 2.5 mins

106-107 12 secs

107 max

Front 10

Transmission temp

Back 10

-50-105 continuous (green)

105-120 precautionary (yellow)

120 max (red)

Front 11

Transmission limitations

Back 11

The transmission is limited by Nr, torque, oil pressure and temperature. Operation is governed by whichever limit is reached first.

Front 12

Transmission Temperature limitations

Back 12

During any operating condition, no maintenance action is required if main transmission temp is in the precautionary range for <5 min.

Prolonged hovering in hot weather (86F/30C) and high GW may cause temp to rise into the precautionary range. Operation in the precautionary range for less than 30 minutes during any 1 flight under these conditions is acceptable and no maintenance action is required.

Front 13

Transmission pressure

Back 13

20 psi min (red)

20-30 idle/transient (yellow)

30-65 continuous (Green)

45-60 level flight

65-130 precautionary (yellow)

130 max (red)

Front 14

Transmission pressure limitations

Back 14

Any discrepancy shall be documented in a MAF (does not constitute an immediate emergency situation but may be indicative of a degraded lubrication system):

1. Steady pressure outside of 45-60 within 30-65 range

2. Fluctuations not exceeding 10 psi within 30-65 range

3. During steady state/transient nose high pitch attitudes, fluctuations (momentary below 30 and transient below 20 for up to 1 second) are acceptable but shall be limited to 30 minutes.

Front 15

Engine oil temperature

Back 15

-50-135 continuous (green)

135-150 30 mins (yellow)

150 max (red)

Front 16

Engine oil pressure

Back 16

22 psi min (red)

22-26 precautionary (yellow)

26-100 continuous (green)

100-120 precautionary (yellow)

120 max (red)

Normal idle range is 22-55 psi

Front 17

Engine start cycles

Back 17

<16C: 3 cycles followed by 60 seconds disengaged, 4th cycle requires 30 min disengaged.

16-52C: 1st cycle then 60 secs disengaged, 2nd cycle 30 mins.

A cycle is defined as starter initiation, acceleration, and drop out.

Front 18

Engine motor limits

Back 18

2 mins starter engaged (ignition off), 5 minutes disengaged. 2 minutes starter engaged, 30 minutes disengaged. (Times cumulative within a 5 minute period)

Front 19

APU limitations

Back 19

The APU is not intended for routine in-flight use. Operations in flight shall be limited to essential operations only. Accaptable in-flight use includes emergency procedures, single-engine training, practice autorotations, and powering the ECS during extreme temp operations.

Front 20

Vne

Back 20

180 kias

Front 21

Sideward/rearward flight

Back 21

35 kts

Front 22

Autorotation

Back 22

100 kias

Front 23

Boost off

Back 23

140 kias

Front 24

SAS 1 & 2 inop in IMC

Back 24

125 kias

Front 25

Either PRI SERVO PRESS caution

Back 25

125 kias

Front 26

Searchlight

Back 26

Position other than stowed - 160 kias

In transition - 100 kias

Front 27

Dome airspeed/AOB limits

Back 27

At or above trail - 70 kias/45 deg

Below trail - 70 kias/15 deg

Front 28

Cabin door opening/closing

Back 28

60 kias

With cabin door open, uncoordinated flight should be avoided.

Front 29

Hovering limitations

Back 29

1. Prolongued rearward flight and downwind hovering should be avoided to prevent accumulation of exhaust fumes in the helo and heat damage to the window of an open cabin door.

2. Hovering turns at a rate in excess of 30 per sec

3. Dipping sonar ops at altitudes other than 70 ft (deviation may result in damage to dipping sonar equipment due to electrostatic discharge when entering/exiting the water)

4. Do not tow the transducer in the water above 8kgs with array folded or 4kgs with array unfolded (may cause TA separation. Towing is defined as cable contacting the funnel)

Front 30

AOB limits

Back 30

Normal ops - 45

Ops above 10k DA - 30

Either PRI SERVO PRESS caution - 30

Boost off flight - 30

Front 31

Altitude limit

Back 31

13,000 DA

Front 32

Prohibited maneuvers

Back 32

1. Aerobatic flight

2. Practice full-autorotation landings

3. Intentional approaches into or inducement of retreating blade stall

Front 33

Rotor brake limits

Back 33

Max rotor speed for brake application -76 Nr

Routine stops shall be made between 30-50 Nr

Routine stops should be limited to 180 psi

Front 34

Landing limitations

Back 34

1. Max rate of descent for level terrain shall not exceed 720 fpm <19500 and 480 fpm >19500

2. Max rate of descent for sloped terrain shall not exceed 360 fpm

3. Touchdown speed 75 kgs with TW locked, 20 kgs with TW unlocked

4. Taxi 40 kgs max with shimmy damper, 20 kgs without shimmy damper

5. Slope limitations: 9 up slope, 12 cross slope, 6 down slope (may cause low freq oscillation near aft stop)

6. Downwind landings should be avoided

Front 35

Gross weight

Back 35

Max operating: 23,500 lbs

Launch/recover aviation ship: 23,500

Launch/recover air-capable/amphib ship: 22,500

Front 36

Load limitations

Back 36

Internal: 300 lbs/sqft

External: 6,000 on cargo hook, 600 on rescue hoist

Front 37

Equipment for night overwater

Back 37

LAWS

Altitude hold

Front 38

Temp limitations

Back 38

-40C/-40F to 60C/140F

Front 39

Backup Hyd Pump limitations

Back 39

To prevent hydraulic fluid overtemp, prolonged ground ops with rotors static is limited to:

OAT 33-38: 24 min on/72 min cool

OAT 39-60: 16 min on/48 min cool

Front 40

APU ground ops

Back 40

APU ops above 43C is limited to 30 mins with eng/rotor operating.

APU is unlimited up to 51C with eng/rotor not operating.

Front 41

Circuit breaker terms

Back 41

Check: visually observe condition, do not change.

Pull: if cb is in, pull out. If out, do not change.

Reset: if cb is out, push in. If in, do not change.

Cycle: if cb is in, pull out then push in. If out, do not change.

*Popped CBs may be reset only once. Holding cb in during reset may cause electrical fire or equipment damage.