Limitations

Question 1

Max sea level Ambient temp

Answer 1

53 degrees

Decrease 2 degrees/1000 feet

Question 2

Minimum ambient temp

Answer 2

-54 degrees for any altitude

Question 3

Engine de icing

Answer 3

4.4 degrees visible moisture

Question 4

Altitude limit

Answer 4

20 000 feet pres alt

Question 5

Airspeed limitations

Answer 5

7500 pounds sea level: 120kts decrease 3kts/1000,
7500 to 8500 pounds sea level: 115kts decrease 3kts/1000’
8500 pounds and above sea level 110kts decrease 3kts/1000’
Doors locked open or removed: 100kts to 3300’ decrease 3kts/
1000’ there after
MCP 47.5 psi 80kts for all weights

Question 6

Max gross internal

Answer 6

9500 lbs

Question 7

Max gross ext

Answer 7

10500 lbs

Question 8

N1 RPM MAX

Answer 8

102% structural limit

Question 9

N2 RPMs

Answer 9

Min 91% 6000 RPM permissable 0 to 30 kts
Min 97% 6400 RPM continuous
Max 100% 6600 RPM

Question 10

Fuel pres

Answer 10

5 to 35 psi

Question 11

Oil pres

Answer 11

25 psi min 40% to 71% N1
25 psi to 80 psi min 71% to 85% N1
80 to 100 psi max 80% max N1
100 psi max

Question 12

Oil temp Engine

Answer 12

15 degrees min
15 to 93 degrees operation
93 degrees max

Question 13

Torque limitations

Answer 13

12 to 47.5 psi continuous operation
47.5 to 54 psi 5 min limit
54 psi max

Question 14

Shaft horsepower

Answer 14

47.5 psi torque 1100 shp

54 psi torque 1250 shp

Question 15

EGT VS OAT LIMITATIONS

Answer 15

Never exceed 626 degrees during start

Refer to gauge for take off and mcp EGT compared to OAT

Question 16

Ignition limitations

Answer 16

2 min on
2 min off
2 min on 
23 min off
Engine start may not be successful below -12.2 degrees or above 8000’ pres jet A

Question 17

Starter limitations

Answer 17

35 sec on
3 min off 
35 sec on
30 min off
35 sec off

Question 18

Loadmeter limitations

Answer 18

Max 0.5 (150 amp) red radial

Question 19

Trans limitations oil pressure

Answer 19

30 psi min
30 to 40 psi below flight idle rpm
40 to 70 psi continuous operation
70 psi max

Question 20

Transmission limitations oil temp

Answer 20

15 to 110 degrees continuous operation

110 degrees max

Question 21

Rotor limitations

Answer 21

Power on 
Minimum 91% permissible 0 to 30kts 
Minimum 97% 
Maximum 100% 
Power off
Min 91% 
Max 104.5%