Limits

Question 1

Minimum airspeed in autorotation

Answer 1

60 KIAS

Minimum rate of descent is 80 KIAS.
Maximum glide distance is 110 KIAS.

Question 2

Maximum airspeed with torque between 100 and 108.5% (take-off power range)

Answer 2

75 KIAS

Question 3

SLOPE TAKE-OFF AND LANDING LIMITATIONS

Answer 3

Nose-up operations: 12 deg
Side-up operations: 10 deg
Nose-down operations : 2 deg

Question 4

WEIGHT LIMITATIONS

Answer 4

Maximum Gross Weight: 2850 kg
Minimum Gross Weight for flight: 1725 kg

Question 5

Maximum operating altitude

Answer 5

15000 ft

Question 6

GAS GENERATOR SPEED (N1)

Answer 6

Minimum: 51%
Cautionary (autorotation only): 51 to 60%
Continuous operation: 60 to 100.1%
Take-off (5 minutes) : 100.1 to 103.2%
Maximum take-off (5 minutes): 103.2%
Transient (30 seconds) : 103.8%

Question 7

POWER TURBINE SPEED (N2)

Answer 7

Minimum: 95%
Cautionary: 95 to 101%
Continuous operation: 101 to 103%
Maximum: 103%
Transient (10 seconds): 108%

Question 8

INTER-TURBINE TEMPERATURE (ITT)

Answer 8

Maximum continuous : 755 °C
Take-off (5 minutes): 755 to 810 °C
Maximum take-off (5 minutes): 810 °C
Transient (5 seconds): 860 °C
Maximum unlimited at starting : 870 °C
Transient at starting: 1090 °C

*Two second between 980 °C and 1090 °C

Note
A linear variation applies above 870 °C, ten seconds, and 980 °C, two seconds.

Question 9

ENGINE TORQUE (TQ)

Answer 9

Maximum continuous: 100%
Take-off (5 minutes): 100 to 108.5%
Maximum take-off (5 minutes): 108.5%
Transient (6 seconds): 115%

Question 10

ROTOR LIMITATIONS (NR)

Answer 10

POWER-ON
Minimum: 95%
Cautionary: 95 to 101%
Continuous operation: 101 to 103%
Maximum: 103%
Transient (10 seconds): 108%

POWER-OFF
Transient (10 seconds): 80%
Minimum: 90%
Continuous operation: 90 to 110%
Maximum: 110%

Question 11

FUEL PRESSURE

Answer 11

Cautionary: 0 to 7 psi
Continuous operation: 7 to 25 psi
Maximum: 25 psi

Question 12

ENGINE OIL PRESSURE

Answer 12

Minimum: 40 psi
Cautionary (with N1 < 72%): 40 to 80 psi
Continuous operation: 80 to 110 psi
Maximum: 110 psi

Note
During cold starting conditions the oil pressure can temporarily exceed 110 psi; it reduces as oil temperature increases.

Question 13

ENGINE OIL TEMPERATURE

Answer 13

Continuous operation: 10 to 115 °C
Maximum: 115 °C
Transient (5 minutes with N1 at 61 ± 1%) : 127 °C

Question 14

MGB OIL PRESSURE

Answer 14

Minimum: 30 psi
Continuous operation: 30 to 55 psi
Cautionary: 55 to 70 psi
Maximum: 70 psi

Question 15

MGB OIL TEMPERATURE

Answer 15

Continuous operation: 0 to 115 °C
Maximum: 115 °C

Question 16

ENGINE STARTER LIMITATIONS

Answer 16

On battery
— 40 seconds on, 60 seconds off
— 40 seconds on, 60 seconds off
— 40 seconds on, 30 MINUTES off
With external power
— 25 seconds on, 30 seconds off
— 25 seconds on, 30 seconds off
— 25 seconds on, 30 MINUTES off

Question 17

GENERATOR LOAD LIMITATIONS

Answer 17

Continuous operation: 0 to 200 A
Maximum: 200 A
Transient (5 seconds): 300 A

Question 18

HYDRAULIC FLUID PRESSURE

Answer 18

Minimum: 1200 psi
Cautionary: 1200 to 1400 psi
Continuous operation: 1400 to 1550 psi
Maximum: 1550 psi