Engine Limits Flashcards
Min battery voltage for engine start
24 V
Starter cooling down period
Start attempt: 1
1 min
Starter cooling down period
Start attempt: 2
1 min
Max transient TRQ (10 sec)
115%
Starter cooling down period
Start attempt: 3
30 mins
Max T/O Power TRQ
(5 min at T/O)(Cumulative per sortie)
111%
Max Continuous TRQ
92%
Max Engine Start TOT
(10 sec over 810°C)
927°C
Max Transient TOT
(6 Sec over 810°C)
899°C
Max T/O Power TOT
(5 min at T/O)(Cumulative per sortie)
810°C
Max Continuous TOT
752°C
Propeller RPM (N2)
Max Transient Limit
(15 sec max above 2132 N2)
2233 N2
Propeller RPM (N2)
Max Continuous Speed
2132 N2
Propeller RPM (N2)
Max Static Ground Ops with Crosswind component >10 kts
1850 N2
Propeller RPM (N2)
Speed avoidance range
1523-1786 N2
Gas Generator RPM
Max Transient N1
(max 15 sec >105% N1)
106%
Gas Generator RPM
Max Continuous N1
105%
Oil Pressure
Max Transient
(Cold weather/engine start)
150 psi
Oil Pressure
Max
130 psi
Oil Pressure
Min at N1
>94%
120 psi
BETA RANGE
105 psi
Oil Pressure
Min at N1
85% to 94%
90 psi
BETA RANGE
75 psi
Oil Pressure
Min at N1
<85%
50 psi
BETA RANGE
35 psi
Oil Temperature
Max Limit at TRQ <40%
107°C
Oil Temperature
Max Transient at TRQ ≥40% (5min)
107°C
Oil Temperature
Max Continuous at TRQ ≥40%
82°C
Oil Temperature
Min Temp
0°C
Oil Temperature
Min Before Starting
-40°C
