Enigne Flashcards
Oil psi range
- 80-100
- 85-105
Minimum flow if P3 is lost
48% N1
Primary governor range
1800-2200 rpm
Primary governor is driven by:
The N2 shaft to a oil pressure of 375
Primary governor has two functions:
Selects a constant speed
It feathers propeller
Overspeed governor limit
2288
Lowest angle of prop before beta
12 degrees
Fuel topping governor kicks in at:
106% above selected rpm of primary governor
Conditions for auto feather engage
Both prop levers at 90% or greater and an engine below 200 ft lbs
Min oil psi
40
Max oil temp
99c
Propeller gear box ratio
15:1
ITT must rise within ________ seconds after introducing fuel
10 seconds
Min N1 for start
12%
Min N1 for start
12%
What N1 do the second stage fuel nozzles kick in during start?
40%
Max oil consumption per engine
1 qt per 10 hrs
ITT gauge power source
DC
What stage does ITT monitor
Stage 5
ITT limit for start
1090c for 2 seconds
N1 rotation speed
37,500 and 100%
N1 max continuous
101.5% 38,100
Oil pressure min and max
Min 40 psi, max 100 psi
Max time for prop in feather on the round running.
5 mins
Max time for prop in feather on the round running.
5 mins
You see dots of blue die in the engine compartment, what does this mean?
The engine fuel pump is leaking.
What percentage does the fuel topping governor reset to in reverse?
95%
