ENGINES

Question 1

AT WHAT POINT DOES AUTO-RELIGHT DISCOUNTINUE?

Answer 1

• 40% N2

Question 2

WHEN DOES THE ATR KICK IN?

Answer 2

• 20% DIFFERENCE BETWEEN N1
• LOSS OF FADEC COMMS
• ENGINE FAILURE

Question 3

N1 AIMING POINT FOR SINGLE ENGINE?

Answer 3

• 65 - 68%

Question 4

WHAT ARE THE ENGINE START SEQUENCE LIMITS?

Answer 4

• LIGHT OFF WITHIN 10 SECONDS
• GROUND IDLE WITHIN 60 SECONDS (30 N1/ 400C/ 55 N2)
• OIL PRESSURE IN THE GREEN ASAP

Question 5

WHAT IS THE N1 HUB MADE OF AND HOW MUCH OF THE THRUST DOES IT PRODUCE?

Answer 5

• ITS CARVED FROM ONE BIG PIECE OF METAL
• PRODUCES 70% OF THE THRUST

Question 6

WHAT ARE THE ENGINE START ATTEMP LIMITS?

Answer 6

• 1ST = 60 SECONDS
• 2ND = 60 SECONDS
• 3RD = 15 MINUTES
• 4TH = 30 MINUTES
• AFTER 4 SEQUENTIAL MOTORINGS THE CYCLE MAY BE REPEATED FOLLOWING A 30 MIN COOL DOWN
• MAX MMORTORING DURATION = 30 SECS

Question 7

WHAT TYPE OF ENGINES ARE THEY?

Answer 7

• PW535E
• 3500 LBS OF THRUST