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C208B Weight, fuel, speeds > Engine Limits EX > Flashcards

Engine Limits EX Flashcards

1
Q

What is ITT

A

Interstage Turbine Temperature (ITT) is the temperature of the exhaust gases between the high pressure and the low pressure turbines. The gas temperature is measured by a number of thermocouples mounted in the exhaust stream

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2
Q

What is NG %

A

Gas generator (engine speed in % RPM gas turbine speed) how much hot part of engine is working.

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3
Q 
Takeoff (5 min)
Torque (MW) 
ITT (MW) 
NG (MW)
RPM
Oil PSI
Oil Temp
A 
Takeoff (5 min)
Torque 2000
ITT 850 (775)
NG 103.7%
1900RPM
85-105 PSI
32-99 c
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4
Q 
Max Climb
Torque (MW) 
ITT (MW) 
NG (MW)
RPM
Oil PSI
Oil Temp
A 
Max Climb
Torque 2000
ITT 825 (775) 
NG 103.7%
1900RPM
85-105 PSI
32-99 c
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5
Q 
Max Cruise
Torque (MW) 
ITT (MW) 
NG (MW)
RPM
Oil PSI
Oil Temp
A 
Max Cruise
Torque 1300
ITT 805 (775) 
NG 103.7%
1900RPM
85-105 PSI
32-99 c
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6
Q 
Iddle
ITT
NG
Oil PSI 
OIL Temp
A 
Iddle
ITT 700
NG 55 Minutes
Oil PSI 40 Minutes
OIL Temp -40-99 c
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7
Q

Low Idle

NG min

A

55%

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8
Q

Hi idle

Ng

A

68%

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9
Q 
Max Reverse  
Torque 
ITT (MW) 
NG (MW)
RPM
Oil PSI
Oil Temp
A 
Max Reverse   1 min max
Torque 2500
ITT (MW) 850     -same as max T/O
NG (MW) 103.7%
RPM 1825
Oil PSI 85-105
Oil Temp 32-99 c
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10
Q 
Transient 
Torque (MW)
ITT (MW) 
NG (MW)
RPM
Oil PSI
Oil Temp
A 
Transient  - think wow big
Torque (MW) 2600   20 sec  max
ITT (MW) 905            20 sec  max
NG (MW) 105.4%       20 sec  max
RPM 2090        
Oil PSI -
Oil Temp 32-99
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11
Q 
Start
Torque (MW)
ITT (MW) 
NG (MW)
RPM
Oil PSI
Oil Temp
A 
Start           -Think hot because low air flow
Torque (MW) -
ITT (MW) 1090 max 2 sec
NG (MW) 103.7%
RPM -
Oil PSI  200 MAX
Oil Temp -40min
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12
Q 
Max Rated 
Torque (MW)
ITT (MW) 
NG (MW)
RPM
Oil PSI
Oil Temp
A 
Max Rated 
Torque (MW) 2397
ITT (MW) 825          - same max climb
NG (MW) 103.7%
RPM 1900
Oil PSI 85-105
Oil Temp 32-99
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13
Q

approaches

RPM

A

1900

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14
Q

200 Amp Gen

NG

A

70%

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15
Q

Bleed air operating range

NG

A

86%-92%

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16
Q

Max Reverse Torque

Transient Torque

A

Reverse Torque 2500

Transient Torque 2600 max 20 sec

17
Q

Max reverse ITT

18
Q

Transient ITT

A

905 Max 20 sec

19
Q

Max reverse RPM

20
Q

RPM Transient

A

2090rpm

all time max at 190 more than 1900

21
Q

Transient Ng

A

105.4% Max 20 sec

22
Q

ITT Start

A

1090 degrees MAX 2 sec

90 over 1000 wow cant believe even over 1000

23
Q

Idle ITT

A

700degrees

24
Q

Idle NG

Low Idle Ng

A

55 Minutes

55% low idle

25
Q

Idle Oil Psi

A

40 Minutes

26
Q

Idle Oil temp

C208B Weight, fuel, speeds (7 decks)

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