Engine

Question 1

What engines are installed on the Challenger 300?

Answer 1

AS907 - HTF 7000 -1-1A

Question 2

What engines are installed on the Challenger 350/3500?

Answer 2

AS907 – HTF 7350-2-1A

Question 3

What is the normal thrust rating for the CL300?

Answer 3

6826 lbs at SL to ISA+15 degrees (86F)

Question 4

What is the normal thrust rating for the CL350/3500?

Answer 4

7323 lbs at SL to ISA+15 degrees (86F)

Question 5

APR provides rated thrust up to what temperature?

Answer 5

ISA+20O C (95O F)

Question 6

What is the minimum N2 ground idle?

Answer 6

46%

Question 7

How is the FADEC powered during engine start when N2 is above 45%?

Answer 7

Permanent Magnet Alternator (PMA) takes over

Question 8

What is the Takeoff Thrust time limit?

Answer 8

5 minutes

Question 9

When is Auto APR armed?

Answer 9

Auto APR switch is on, Thrust levers placed in TO detent

Question 10

What is the Auto APR Time Limit?

Answer 10

10 minutes, after which exceedances are recorded

Question 11

What is the Manual APR Time Limit?

Answer 11

5 minutes, after which exceedances are recorded

Question 12

List the three ways you can start an engine on the ground.

Answer 12

• APU
• Crossbleed
• External Air Source

Question 13

What are the two ways that APR can be activated?

Answer 13

• Manually by selecting the thrust levers into the APR detent
• Automatically when there is an N2 mismatch in excess of 15 percent, or FADEC’s stop cross communicating, and the throttles are in TO detent

Question 14

What type of oil is approved for our powerplants?

Answer 14

Oils conforming to EMS-53110 Type 2 turbine oil (Flexjet recommends Eastman/Exon/BP 2380)

Question 15

What will happen if a thrust reverser becomes unstowed in flight?

Answer 15

The FADEC will command the engine to idle

Question 16

When is engine sync available?

Answer 16

CRZ or CLB power and N1’s within 5%

Question 17

When is Mach Hold available?

Answer 17

CRZ thrust, ALT or ALTS mode, Sync on – automatically adjusts N1 +- 3%

Question 18

What components are mounted on the engine accessory gearbox?

Answer 18

• Oil pump
• Oil reservoir
• Hydraulic pump
• Generator
• Hydro-Mechanical Fuel Metering Unit (HFMU)
• Air Turbine Starter (ATS)
• Permanent Magnetic Alternator (PMA)

Question 19

What engine functions does the FADEC control?

Answer 19

• Fuel scheduling
• Bleed air extraction
• Ignition
• Engine starting
• Limits for N1/N2/ITT
• Overspeed protection
• Idle for Ground/Flight/Reverse
• APR
• Engine Sync
• Thrust annunciations