Limitations

Question 1

Ground control limits with rotors turning

Answer 1

Thrust-not below ground detent (for autos only)
Cyclic:
Lateral- 1”
Aft-2” (reason being is because 2” is enough to keep aft gear planted, but more could lead to droop stop pounding)
Pedals 3/4”

Forward: No limit (too many variables such as slope)

Question 2

APU starting limits

Answer 2

Shall not be started with a tailwind in excess of 25 knots

Question 3

Engine starting limitations

Answer 3

Shall not be stated with a tailwind in excess of 10 knots

Question 4

Max airspeed?

Answer 4

170 kts

Question 5

Rotor RPM limits

Answer 5

91 PERCENT MINIMUM TRANSIENT 
97 TO 101 PERCENT NORMAL OPERATION 
102 TO 105 PERCENT TRANSIENT 
106 PERCENT MAXIMUM TRANSIENT POWER ON
108 PERCENT MAXIMUM DURING AUTOROTATION 
111 PERCENT MAXIMUM TRANSIENT

Question 6

Engine oil pressure limits

Answer 6

5 PSI MINIMUM AT GROUND IDLE 
35 PSI MINIMUM AT 80 TO 95% N1 (NG) 
50 PSI MINIMUM AT 95% N1 OR ABOVE 
35 TO 90 PSI FOR NORMAL OPERATION 
110 PSI MAXIMUM AT EMERGENCY POWER 
150 PSI MAXIMUM FOR COLD WEATHER STARTS

Question 7

PTIT limits

Answer 7

400° C TO 816° C CONTINUOUS OPERATION

816° C to 854° C MAXIMUM FOR NOT MORE THAN 30 MINUTES

854° C to 899° C MAXIMUM FOR NOT MORE THAN 10 MINUTES

899° C to 932° C MAXIMUM FOR NOT MORE THAN 2.5 MINUTES

932° C to 943° C MAXIMUM FOR NOT MORE THAN 12 SECONDS NEVER EXCEED

Question 8

N1 limits

Answer 8

50 PERCENT MINIMUM GROUND IDLE

111 PERCENT MAXIMUM

Question 9

Engine oil temp limit?

Answer 9

149° C MAXIMUM

Question 10

Torque limits

Answer 10

100 PERCENT MAXIMUM DUAL ENGINE

123 PRECENT MAXIMUM SINGLE ENGINE

Question 11

Fuel flow indicator

Answer 11

2000 PPH @ 100% TORQUE

Question 12

Transmission oil pressure limits

Answer 12

7 PSI MINIMUM AT GROUND IDLE
20 PSI MINIMUM AT 100% RRPM
20 TO 90 PSI NORMAL OPERATION

Question 13

Transmission oil temperature

Answer 13

140 C MAXIMUM

Question 14

Hydraulic temps

Answer 14

120 C MAXIMUM

95 C TO 120 C CAUTION

Question 15

Flight control hydraulic pressure

Answer 15

2500 PSI MINIMUM

2500 TO 3200 PSI NORMAL OPERATION

3200 PSI MAXIMUM

Question 16

Utility hydraulic pressure

Answer 16

2500 PSI MINIMUM

2500 TO 3500 PSI NORMAL OPERATION

3500 PSI MAXIMUM

Question 17

Max gross weight

Answer 17

50,000 lbs

Question 18

Cargo hook limits

Answer 18

The structural limit of the forward and aft hook is 17,000 pounds each.

The maximum single load that can be suspended as a tandem load from the forward and aft hooks is 25,000 pounds.

The center cargo hook is limited to a maximum load of 26,000 pounds.

When combination of internal and external loads are carried during the same flight and the exter-nal load exceeds 12,000 pounds, position the internal load forward of the utility hatch. This procedure will pre-clude encountering an excessively aft CG

Question 19

CGI cannot exceed red or yellow band for how many seconds?

Answer 19

45 secs

Question 20

Max crosswind or sideward flight

Answer 20

45kts

Question 21

Max tailwind for hover

Answer 21

45 knots

Question 22

Maximum airspeed with the lower section of the cabin entrance door open and locked is

Answer 22

60 KIAS.

Question 23

The rescue hatch door shall not be opened or closed above

Answer 23

90 KIAS

Question 24

The windshield wipers shall be off at air-speeds above

Answer 24

130 kts

Question 25

Upper section of the cabin entrance – en-sure that airspeed is less than ___ before closing door in flight.

Answer 25

100 KIAS

Question 26

External Cargo Airspeed Limits

Answer 26

If a sling or hook should fail while carrying a tandem load, limit air-speed to a maximum of 60 KIAS.

Question 27

Longitudinal Cyclic Trim (LCT) Actuator Airspeed Limits

Answer 27

Do not manually extend the LCT beyond the GND posi-tion on the cyclic trim indicators at indicated airspeeds below 60 knots. Use of extended cyclic trim at low air-speedswillresultinhighaftrotorbladestresses.

Question 28

AFCS Limitations

Answer 28

The airspeed limit when op-erating on single AFCS is 100 KIAS or Vne, whichever is slower. The helicopter may be operated with both AFCS off up to 160 KIAS or Vne, whichever is slower.

Question 29

Bank Angle Limitations

Answer 29

With an operative cruise guide indicator, bank angles are limited by the cruise guide indicator, but no greater than 60°. When operating with altitude hold, limit bank angle limits to 45° maximum. With an inoperative cruise guide indicator, use the bank angle limits defined by Figure 2-5.

Question 30

Landing Limitations.

Answer 30

The maximum ground speed for running landings is 60 KGS. The maximum nose-up attitude during landings is 20º. Do not exceed 300 ft per minute on touchdowns (most conservative limit)

Question 31

Max taxi speed on ice

Answer 31

The maximum taxi speed is 5 knots ground speed when operating on hard prepared surfaces.

Question 32

Pitot heat limits

Answer 32

No more than 5 mins on, on ground

Question 33

Windshield heat shall not be used above

Answer 33

24° C

Question 34

Single Point Refueling.

Answer 34

The maximum rate for pressure refueling is 300 gpm at 55 psi

Question 35

What can’t you do with inoperative LCT’s

Answer 35

Flight below 98% rpm is prohibited with inoperative LCT’s