Engine Ops

Question 1

Engine Preflight

Answer 1

EMS BIT ball go-no go indicator (should be black)
Intake
Exhaust
precharges on JFS bottles/accumulators
Fluid leaks

Question 2

Verify list covers ______ switches

Answer 2

critical switches:
FUEL MASTER  - MASTER gaurd down
ENG FEED - NORM
EPU - NORM guard down
ENG CONT - PRI guard down
ENG CONT - NORM guard down
Throttle - OFF
LD Hangle - DN and locked
HOOK - UP
MASTER ARM - OFF
AIR SOURCE - NORM
Fod check

Question 3

Engine Start

Answer 3

JFS START 2 (<30 seconds, Green RUN light, RPM increase)
At ~18% SEC light goes off
JFS RUN light illuminated for one minute
THROTTLE - IDLE (SEC light on for about 3 seconds during DEEC/SEC test)
Engine light-off in <20 seconds (ignition rumble, FTIT increase, goe to idle by itself)
>25% rpm - HYD/OIL PRESS should not go off before (ABORT if it turns off early)
JFS shuts off at 50%
55% - ENGINE warning light off, STBY GEN light off – 10 seconds later main gen on-line MAIN GEN light off

Question 4

After Start Engine Check after engine stabilizes at idle:

Answer 4

HYD/OIL PRESS light - OFF (if not, increase rpm 2-3% to exinguish)
Fuel Flow - stabilize 500-1500 pph
Oil pressure - at least 15%
Nozzle - 70-95% open
RPM - 60-76%
FTIT - <575*
Hydraulic Pressure - 2850-3250
Throttle cutoff release - will not shutdown engine
confirm with Crew Chief - 6 fuel pump lights on, JFS doors closed

Question 5

SEC Check

Answer 5

ENG CONT switch - SEC
Nozzle <5%
SEC Caution light - ON
advance throttle - verify response then idle
ENG CONT switch - PRI guard down
Nozzle 70-95%
SEC Caution light - OFF

Question 6

Anti-Ice Check

Answer 6

Anti-ice on for engine start
stabilize engine at idle for 1 minute with ANTI ICE ON with no PFLs
Anti-ice switch OFF - No PFLs
Monitor FTIT with ANTI ICE - OFF
FTIT must decrease 10*C within 15 seconds or abort
ANTI-ICE switch - AUTO/ON as required

Question 7

Run-up check (8-6-4-4-2 check)

Answer 7

Note oil pressure at idle
RPM ~80%
FTIT ~600*
Oil Pressure ~40*
Fuel Flow 3500-4500 pph
Nozzle position ~20%

Question 8

MIL Power Takeoff

Answer 8

Oil Pressure 30-80 psi (routine 40-55 psi - must rise 15 psi from idle)
RPM 89-94% (routine 90-92%)
Nozzle <30% (routine 5-20%)
FTIT 890-965*

Question 9

AB Takeoff

Answer 9

5 AB Stages
Nozzle - 65-75%
Oil Pressure - 30-80 psi
FTIT - 890-965*
RPM - 94% max

Question 10

Airspeed limits

Answer 10

800 KIAS until 2.05 Mach

Question 11

OIL: ____ psi increase idle-to-Mil below __,000’

Answer 11

15 psi increase below 35,000’

Question 12

Maintain throttle at ____ while supersonic

Answer 12

MIL

Question 13

idle rpm is constant up to 0.84 mach and increases until it reaches _____ at ~1.4 mach

Answer 13

reaches MIL Power RPM

Question 14

Basic 11* AOA Airspeed and add ___ Kts per 1000 lbs fuel/stores weight above zero fuel

Answer 14

C - 137 Kts (11) (129Kts at 13)

D - 140 Kts (11) (132Kts at 13)

Question 15

Oil Scavenge and Shutdown

Answer 15

Advance throttle to 75-78% rpm for 5-10 seconds
return to idle for 1-2 seconds
Move to OFF

Question 16

FTIT gauge redlined at

Answer 16

680* - max ground start

980* - max steady-state

Question 17

RPM gauge redlined at

Answer 17

96%

Question 18

Oil Pressure gauge redline

Answer 18

15 psi - Min

80 psi - Max

Question 19

HYD/OIL PRESS warning light

Answer 19

oil pressure below 10+/-2 psi for 30 seconds (loss of 75-80% of oil)
either hydraulic system drops below 1000 psi
During start should go out before 25%

Question 20

Negative G Flight limits

Answer 20

10 seconds - AB

30 seconds - Mil or below

Question 21

<1G Flight limit with zero oil pressure

Answer 21

1 minute

Question 22

Nozzle limits at Idle with Gear Down

Answer 22

70-95%

Question 23

in SEC below 15,000’ maintain a minimum of ___% rpm until _____

Answer 23

min of 70% until landing is assured

Question 24

_-minute motoring limit of JFS prior to engine start. If entire _ minutes used, but cool JFS for 5 minutes before reattempting

Answer 24

4 minute motoring limit

Question 25

If start is aborted, wait _ minute(s) before reattempting and know that the JFS will not reengage until spooldown occurs, approximately ____ seconds

Answer 25

wait 1 minute

spooldown - 17 seconds

Question 26

with engine running above ___% rpm, the JFS is limited to _ minute(s)

Answer 26

above 60%, JFS limited to 3 minutes