Engines

Question 1

max thrust time limit?

Answer 1

10 minutes

Question 2

TO/GA thrust time limit?

Answer 2

5 minutes

Question 3

starter limit cool down times?

Answer 3

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

Question 4

when will ATR activate? (3 things?)

Answer 4

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

Question 5

power source for FADEC?

Answer 5

PMA permanent magnetic alternator

Question 6

what is hung start?

Answer 6

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

Question 7

how long before ITT rise on start?

Answer 7

within 10 seconds

Question 8

max thrust N2, N1 limits?

Answer 8

101, 100 (%)

Question 9

take off thrust N2, N1 limits?

Answer 9

101, 100 (%)

Question 10

typical OEI N1 setting?

Answer 10

60 to 65 (%)