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Flashcards in Engine Operating Limits Deck (9)
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1

Torque - Ft Lbs

Takeoff and Max Cont
Transient

Takeoff and Max Cont - 2230 ft lbs
Transient - 2570 ft lbs for 05 secs

2

Max Observed ITT °C

- Starting
- Low Idle
- Takeoff, Max Cont and Max Cruise
- Max Reverse
- Transient

Starting - 1000 °C (limited to 05 secs)
Low Idle - 750 °C
Takeoff, Max Cont and Max Cruise - 800 °C
Max Reverse - 750 °C
Transient - 850°C for 20 seconds

3

Prop RPM (N2)

Takeoff, Max Cont and Max Cruise
Max Reverse
Transient
Overspeed governor up to 2120 RPM

Takeoff, Max Cont and Max Cruise ............................. 2000 rpm
Max Reverse................................................................. 1900 rpm Transient...............................................2200 rpm for 5 seconds
Overspeed governor up to 2120 RPM............ 1800 ft-lb torque

4

Oil Pressure

Min
Max
Transient

60 psi Min
135 psi Max
200 psi Transient

5

Oil Temperature

Starting
Take-off and Max Cont
Transient

Min: (-)40°C
Take off and Max Cont: 0-99°C
Transient: 0-104°C

6

External Power -

Set to ________ volts, minimum of _____ amps momentarily and _____ amps continuously

28.0-28.4 Volts
Min of 1000 amps momentarily
300 amps continuously

7

Generator Limits

Sea Level to 31,000 feet altitude
Above 31,000 feet altitude
Ground Operation

Sea Level to 31,000 feet altitude ....................................... 100%
Above 31,000 feet altitude ................................................. 85%
Ground Operation............................................................... 85%

8

Starter Limits

40 seconds ON, 60 seconds OFF,
40 seconds ON, 60 seconds OFF,
40 seconds ON, 30 minutes OF

9

SHP - Takeoff and Max Cont?

850 SHP