ABE QUESTIONS AND ANSWERS
How many major systems are there on c-13 catapults? - answer - answer: seven
What are the steam temperatures for c-13-1 and c-13-2 catapults? - answer - answer:
c-13-1, 474f c-13-2, 456f
What are the proper steam pressures for the c-13-1/ c-13-2 catapults? - answer -
answer: 520+- 10/ 450+-10 psi respectively
What is the cylinder bore diameter for c-13-2 catapults? - answer - answer: 21 inches
Water brake pumps are capable of pumping how many gallons per minute? - answer -
answer: 650
what is the drum diameter for the retraction engine? - answer - answer: 16 inches
dcu relief valve is set to relieve at? - answer - answer: 3100+- 50
Retraction engine motor speed is? - answer - answer: 600 rpm
What components raise and reseat sealing strips? - answer - answer: connectors raise
sealing strips and the guide reseats it
What component anchors and absorbs reaction forces when catapult is fired? - answer
answer: thrust unit
What componemt acts as a chasis for the piston assembly? - answer - answer: the
barrel
What component carries forward motion of pistons to the aircraft by means of bridle or
pendant? - answer - answer: shuttle assembly
When does the shuttle assembly become an 800-1200 shot shuttle? - answer - answer:
when (3) or more dogs exceed 1.885 inches the shuttle must be inspected every 800-
1200 shots and must be replaced when any (1) dog measures 1.905 inches.
Name the various water brakes rings? - answer - answer: - striker ring (protects other
rings from damage) - jet ring (holds annulas ring in place) - annulas ring (creates vortex)
also has a o-ring that must be installed - choke ring (works in conjunc. With tapered
spear)
What do the water brake sensing switches open and close at? - answer - answer: open
at 50+/-2 close at 55+-2
, What component forms a shuttle track? - answer - answer: trough covers
What is the proper suction for the water brakes? - answer - answer: 0 to -10 inches
What is the purpose of the velocity indicator? - answer - answer: determines the
endspeed of the shuttle assembly
What is the only part of the shuttle that protrudes above the flight deck? - answer
answer: shuttle blade
What is the chronograph drum speed? - answer - answer: 1800+-20
What is the approximate chronograph warm-up time? - answer - answer: 15 minutes
How many different modes does the desi system have? - answer - answer: four
When should the lithium battery be replaced on the desi system? - answer - answer:
every 6 months
Name the four test modes of the desi system? - answer -> answer: date/time mode,
count initial mode, operate mode, bite mode
Magnetic sensors 1 and 2 for the desi system are set how many inches apart? - answer
answer: 24+-1/4 to 1/64 inches apart
Magnetic sensors 1 and 3 for the desi system are set how many inches apart? - answer
answer: 48 inches apart
What is the purpose of the operation control assembly of the launch valves? - answer -
answer: provides vertical movement for seating and unseating of the steam valve plug,
and rotational movement needed for opening and closing steam valve.
Launch valve stroke timer switch s-580 is set to open at how much psi? - answer
answer: 700-750
Desired hydraulic temperature is? - answer - answer: 105+/- 20 max 140f
When does lube occur on c-7/c11 catapults? - answer - answer: occurs at final ready to
retract when grab is aft half cycle to stow when grab is forward
What are the lube pump motors set at? - answer - answer: 150+- 15 psi
What is the purpose of the lube control valve? - answer - answer: admits and shuts off
flow of fluid from main accumulator
How many major systems are there on c-13 catapults? - answer - answer: seven
What are the steam temperatures for c-13-1 and c-13-2 catapults? - answer - answer:
c-13-1, 474f c-13-2, 456f
What are the proper steam pressures for the c-13-1/ c-13-2 catapults? - answer -
answer: 520+- 10/ 450+-10 psi respectively
What is the cylinder bore diameter for c-13-2 catapults? - answer - answer: 21 inches
Water brake pumps are capable of pumping how many gallons per minute? - answer -
answer: 650
what is the drum diameter for the retraction engine? - answer - answer: 16 inches
dcu relief valve is set to relieve at? - answer - answer: 3100+- 50
Retraction engine motor speed is? - answer - answer: 600 rpm
What components raise and reseat sealing strips? - answer - answer: connectors raise
sealing strips and the guide reseats it
What component anchors and absorbs reaction forces when catapult is fired? - answer
answer: thrust unit
What componemt acts as a chasis for the piston assembly? - answer - answer: the
barrel
What component carries forward motion of pistons to the aircraft by means of bridle or
pendant? - answer - answer: shuttle assembly
When does the shuttle assembly become an 800-1200 shot shuttle? - answer - answer:
when (3) or more dogs exceed 1.885 inches the shuttle must be inspected every 800-
1200 shots and must be replaced when any (1) dog measures 1.905 inches.
Name the various water brakes rings? - answer - answer: - striker ring (protects other
rings from damage) - jet ring (holds annulas ring in place) - annulas ring (creates vortex)
also has a o-ring that must be installed - choke ring (works in conjunc. With tapered
spear)
What do the water brake sensing switches open and close at? - answer - answer: open
at 50+/-2 close at 55+-2
, What component forms a shuttle track? - answer - answer: trough covers
What is the proper suction for the water brakes? - answer - answer: 0 to -10 inches
What is the purpose of the velocity indicator? - answer - answer: determines the
endspeed of the shuttle assembly
What is the only part of the shuttle that protrudes above the flight deck? - answer
answer: shuttle blade
What is the chronograph drum speed? - answer - answer: 1800+-20
What is the approximate chronograph warm-up time? - answer - answer: 15 minutes
How many different modes does the desi system have? - answer - answer: four
When should the lithium battery be replaced on the desi system? - answer - answer:
every 6 months
Name the four test modes of the desi system? - answer -> answer: date/time mode,
count initial mode, operate mode, bite mode
Magnetic sensors 1 and 2 for the desi system are set how many inches apart? - answer
answer: 24+-1/4 to 1/64 inches apart
Magnetic sensors 1 and 3 for the desi system are set how many inches apart? - answer
answer: 48 inches apart
What is the purpose of the operation control assembly of the launch valves? - answer -
answer: provides vertical movement for seating and unseating of the steam valve plug,
and rotational movement needed for opening and closing steam valve.
Launch valve stroke timer switch s-580 is set to open at how much psi? - answer
answer: 700-750
Desired hydraulic temperature is? - answer - answer: 105+/- 20 max 140f
When does lube occur on c-7/c11 catapults? - answer - answer: occurs at final ready to
retract when grab is aft half cycle to stow when grab is forward
What are the lube pump motors set at? - answer - answer: 150+- 15 psi
What is the purpose of the lube control valve? - answer - answer: admits and shuts off
flow of fluid from main accumulator
