Engine Flashcards

1
Q

Engine Model

A

Pratt and Whitney

JT15D-4B

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2
Q

Thrust Generated (per Engine)

A

2500 LBS

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3
Q

Engine Bypass Ratio

A

2.7 : 1

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4
Q

Maximum Fan N1

A

106.0 %

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5
Q

Maximum Turbine N2

A

97.0 %

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6
Q

Maximum Start ITT

A

700o C (2 sec.)

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7
Q

Maximum Continuous ITT

A

690o C

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8
Q

Idle ITT

A

580o C (typical)

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9
Q

Transient (acceleration) ITT

A

710o C

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10
Q

Maximum Temperature for Engine Start

A

ISA +39o C

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11
Q

Starter Limits

A

3 attempts in 30 minutes,

with 60 seconds rest between

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12
Q

Battery Limits for Starting

A

3 starts per hour

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13
Q

Minimum Oil Pressure

A

35 PSI (idle)

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14
Q

Maximum Oil Pressure

A

85 PSIG

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15
Q

Minimum Oil Temperature

A

-40o C (starting and idle)

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16
Q

Maximum Oil Temperature

A

121o C

17
Q

Minimum Fuel Temperature for Takeoff

A

-40o C (Jet A)

-54o C (Jet B)

18
Q

Minimum Fuel Temperature for Start

A

-23o C (Jet A)

-54o C (Jet B)

19
Q

Minimum Battery Voltage

A

24V DC

20
Q

External Power Unit Limits

A

28V DC** (no load) / **Maximum 1000A output

21
Q

Minimum Ambient OAT for Battery Start

A

-18o C