Engine Limits Legacy Flashcards by Marshall Nicely

Take off (5 min)
Legacy 
Torque (MW)
ITT (MW)
Ng% (MW)
RPM
Oil PSI
Oil Temp

Legacy take off
Torque (MW) 1700 / 2000
ITT (MW) 805 degrees (710) / 850 (775)
Ng% (MW) 101.6% / 103.7%
RPM 1900
Oil PSI 85 - 105
Oil Temp 10-99

(ITT over 765/825 limited to 5 min)

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Max Climb 
Legacy 
Torque (MW)
ITT (MW)
Ng% (MW)
RPM
Oil PSI
Oil Temp

Legacy Climb
Torque (MW) 1700
ITT (MW) 765 (710)
Ng% (MW) 101.6%
RPM 1900
Oil PSI 85 - 105
Oil Temp 0-99

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Max Cruise 
Legacy 
Torque (MW)
ITT (MW)
Ng% (MW)
RPM
Oil PSI
Oil Temp

Legacy Cruise 
Torque (MW) 1300
ITT (MW) 740 (710)
Ng% (MW) 101.6%
RPM 1900
Oil PSI 85 - 105
Oil Temp 0-99

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IDLE 
Legacy 
ITT
Ng% time
Oil PSI time
Oil Temp

IDLE 
Legacy 
ITT 685 degrees
Ng% 52Min
Oil PSI 40Min
Oil Temp -40-99

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Legacy
ITT Transient
ITT Starting

transient 850 max 2 seconds

starting 1090 max 2 seconds

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Legacy Low IDLE

52%

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Legacy High IDLE

65%

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Engine Limits same EX & Legacy

RPM all the same

OIL PSI SAME except 200 Max NA Legacy

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Starting
Legacy
ITT limit

1090 2 seconds max

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Max Reverse
Max Rated
Torque
Legacy

Torque
1865
Reverse and max rated

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Max Reverse 
Legacy 
Torque (MW)
ITT (MW)
Ng% (MW)
RPM
Oil PSI
Oil Temp

Legacy 
reverse
Torque (MW) 1865
ITT (MW) 805
Ng% (MW) 101.6%
RPM 1825
Oil PSI 85 - 105 
Oil Temp 0-99

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Legacy

Max Reverse ITT

805degrees - Same as T/O

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Transient 
Legacy 
Torque (MW)
ITT (MW)
Ng% (MW)
RPM
Oil PSI
Oil Temp

Transient 
Legacy 
Torque (MW) 2400 20 sec -2600   20 sec
ITT (MW) 850 max 2 sec -905   20 sec
Ng% (MW) 102.6%  2 sec - 105.4% 20 sec
RPM 2090
Oil PSI -
Oil Temp 0-104

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Transient Legacy

Torque

2400

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Max rated
Legacy
Torque

1865

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Max Rated Reverse Torque legacy

1865

oil temp transient

legacy

0-104

starting 
Legacy 
Torque (MW)
ITT (MW)
Ng% (MW)
RPM
Oil PSI
Oil Temp

Legacy 
Torque (MW)
ITT (MW) 1090 max 2 sec
Ng% (MW) 
RPM 
Oil PSI 
Oil Temp -40  Min

Max Rated 
Legacy 
Torque (MW)
ITT (MW)
Ng% (MW)
RPM
Oil PSI
Oil Temp

Max rated 
Legacy 
Torque (MW) 1865
ITT (MW) 805  -EX 825
Ng% (MW) 101.6%
RPM 1900
Oil PSI 85-105
Oil Temp 10-99

Legacy

Max rated oil temp

10-99

same as take off

200 AMP GEN

Legacy

70%

Transient
ITT - Legacy
ITT - EX

L- 850 degrees

EX - 905 degrees

MAX Rated Torque both aircraft

Think max is technical highest number
1865
2397

Transient torque both aircraft

2400

2600 max 20 sec

Reverse Torque both aircraft

1865 | 2500

Reverse ITT both aircraft

L - 805 EX - 850 1 min max Think like takeoff because short period

MAX rated ITT both aircraft

L-805 EX - 825 needs to last a while so ex is at climb limit