Engines Flashcards

1
Q

max thrust time limit?

A

10 minutes

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2
Q

TO/GA thrust time limit?

A

5 minutes

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3
Q

starter limit cool down times?

A

after 1st attempt - 60 seconds
after 2nd attempt - 60 seconds
after 3rd attempt - 15 minutes
after 4th attempt - 30 minutes

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4
Q

when will ATR activate? (3 things?)

A
  • 20% diff in thrust
  • lost comm with other FADEC
  • actual failure (flameout)
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5
Q

power source for FADEC?

A

PMA permanent magnetic alternator

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6
Q

what is hung start?

A

need 60 seconds to get to ground idle … if you don’t get 3/4/5 … you have hung start

you did NOT get: 3/4/5
- 30% n1
- 400 deg ITT
- 55% n2 speed

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7
Q

how long before ITT rise on start?

A

within 10 seconds

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8
Q

max thrust N2, N1 limits?

A

101, 100 (%)

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9
Q

take off thrust N2, N1 limits?

A

101, 100 (%)

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10
Q

typical OEI N1 setting?

A

60 to 65 (%)

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