Phase III, Block III - Powerplant

Question 1

What are safe distances from directly behind exhaust?

Answer 1

50 ft radius at idle to 200 ft radius at maximum power.

Question 2

What are safe distances to maintain when idle?

Answer 2

3 ft forward of intake edge.

Question 3

What are safe distances to maintain when at military power?

Answer 3

9 ft from intake edge, or 9 ft aft of intake to prevent being pulled into intake.

Question 4

What are safe distances to maintain while IPP is running?

Answer 4

15 ft radius aft of IPP exhaust.

Question 5

What cautions should maintainers be aware of with IPP exhaust?

Answer 5

Hazard area presents high temperature danger under aircraft, posing extreme danger to anyone working underneath aft section of aircraft.

Question 6

Fueling or de-fueling shall not be done within how many feet of operating airborne type radio or air radar equipment?

Answer 6

100 ft

Question 7

Fueling or de-fueling shall not be done within how many feet of operating ground radar equipment?

Answer 7

300 ft

Question 8

What is the type of engine used in the F-35C?

Answer 8

F135-PW-400 engine

Question 9

Describe the F135-PW-400 engine.

Answer 9

• Advanced axial flow
• twin-spool
• counter-rotating augmented turbofan engine with an annular combuster
• has augmentor for supersonic operation
• nonvectoring variable geometry nozzle

Question 10

The ignition system is designed to provide what?

Answer 10

High voltage to gas generator igniters for engine start and to augmentor pilot burner for augmentation.

Question 11

The ignition system features how many exciters?

Answer 11

2

Question 12

What are the two exciters for the ignition system?

Answer 12

Exciter A

Exciter B

Question 13

What is FADEC?

Answer 13

Full Authority Digital Engine Control

Question 14

What is PHAM?

Answer 14

Prognostic Health Area Monitor

Question 15

What is MEFP?

Answer 15

Main Engine (ME) Full Authority Digital Engine Control (FADEC) Prognostic Health Area Monitor (PHAM)

Question 16

Exciters are controlled by what?

Answer 16

MEFPs

Question 17

How many MEFP are there?

Answer 17

2 - A, B

Question 18

MEFP A contains what circuit(s)?

Answer 18

Gas generator circuit

Augmentor circuit

Question 19

MEFP B contains what circuit(s)?

Answer 19

Second gas circuit

Question 20

What are two main functions provided by MEFPs?

Answer 20

Control and monitoring

Question 21

Where are MEFPs mounted?

Answer 21

Mounted on lower fan duct at 5 o’clock (MEFP B) and 7 o’clock (MEFP A) positions

Question 22

Describe the Lubrication System.

Answer 22

Self-contained, closed loop system - cleans and cools oil for cooling and lubrication of bearings and gears.