Shared Flashcard Set

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Vol 3- Catapults
class notes
124
Aviation
Professional
10/15/2015

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Cards

Term
8 major systems
Definition
the Catapult system has how many systems
Term
Catapult system
Definition
this is steam powered , hydraulically/electrically controlled to launch aircraft
Term
2 rows of slotted cylinders
Definition
the catapult consists of how many slotted cylinders
Term
C13 Mod 2
Definition
which catapult has a larger diameter and uses less steam: C 13 Mod 2 or C13 Mod 1
Term
electronically interlocked pairs
Definition
the Catapults are installed how
Term
Trough heating
Definition
the launching engine cylinder are heated by what
Term
finned tubing
Definition
the cylinders in the trough heating system are called what
Term
steam smothering system
Definition
this system is used to put out a fire in the catapult
Term
steam blowdown valve
Definition
this is used to relieve steam from receivers as required
Term
Launch valves
Definition
this emits or closes off the flow of steam to the LEC
Term
exhaust valve
Definition
this directs spent steam from LEC overboard
Term
Pressure breaking orifice elbow
Definition
this contains an orifice that is designed to vent off steam pressure
Term
2 rows of LEC
Definition
there are how many rows of LEC aligned parallel in trough
Term
Cylinder Cover
Definition
these act as a clamp for LEC and are used to prevent radial expansion
Term
sealing strips
Definition
these are used to prevent the loss of steam from cylinder by sealing opening of cylinder
Term
shuttle
Definition
this is a steel frame that provides a connection between LEC engine piston and aircraft
Term
waterbrake installation
Definition
this is used to bring shuttle to a complete and controlled stop
Term
Hydraulic motor
Definition
this is a bidirectional engine that is powered by main accumulator
Term
Drum assembly
Definition
this is a machine that winds and unwinds the drive system cables to either advance or retract the grab
Term
screw and traverse carriage installation
Definition
this guides the advance and retract cables on drum
Term
retract engine manifold
Definition
this provides a means of mounting and interconnecting all the valves and orifices
Term
retraction engine dump valve
Definition
this initiates the retract or advance breaking stroke
Term
cable tensioners
Definition
these are designed to equalize drive system cable
Term
4 cable tensioners
Definition
how many cable tensioners are located on top of retraction engine frame
Term
drive system cables
Definition
this drive system cables have swage fittings on one end of the attachment to the grab
Term
9/16th inch wire rope
Definition
the drive system cable has what diameter of wire rope
Term
4 cables
Definition
how many cables are attached to the grab
Term
sheave
Definition
this is a type of pulley used to guide and change direction of drive system cables
Term
Main Hydraulic accumulator
Definition
this is a vertical cylinder that contains a free floating piston
Term
Main Hydraulic pump
Definition
these are provided to deliver fluid to the main hydraulic accumulator
Term
3 pumps
Definition
how many pumps are in Hydraulic system
Term
Booster Pump and Filter Unit
Definition
this system is designed to prevent cavitation of pump and remove contaminates from fluid
Term
Circulating Pump
Definition
this pump is used to return fluid from auxiliary tank to gravity tank
Term
gravity tank
Definition
this is the main stowage reservoir for hydraulic fluid
Term
air flask
Definition
this provides air pressure to airside of main accumulator
Term
70 cubic feet capacity
Definition
the air flask has this big a capacity
Term
Lube Tank
Definition
this is a steel tank that is close to the pump
Term
220 gallons
Definition
the lube tank has a capacity of how much
Term
deck tensioning system
Definition
this provides a means of pretensioning the aircraft prior to firing the catapult
Term
external and internal tensioning systems
Definition
the two types of deck tensioning systems are
Term
forward force to the shuttle
Definition
the external tensioning system deals with what
Term
retraction engine movement in conjunction with deck tensioning
Definition
internal tensioning allows for what
Term
Integrated Catapult Control Station (ICCS)
Definition
this is made up of panels containing lights, switches, and other controls necessary for operations of catapults
Term
Water Brake control panel
Definition
this is a suspend switch that provides launch sequence abort capabilities during operations
Term
Central Charging Panel
Definition
this provides a single centralized station which virtually all below deck catapults functions are accomplished.
Term
600 PSI
Definition
The steam generated in the ship’s boiler is at what PSI
Term
External Preheat system
Definition
This system consists of 4 finned steam pipes and provide radiant heating to catapult power cylinders
Term
Wet Accumulator
Definition
this holds constant pressurized steam with two lines leading to launch valves ?
Term
lower portion
Definition
this area has heated water of the wet accumulator
Term
higher portion
Definition
this area accumulates steam
Term
The MCC or CCP ( Main Control Console ) or (Central Charging Panel)
Definition
water and steam gages are located where
Term
470 F
Definition
he temperature is maintained at what
Term
Between 35 to 55 inches
Definition
the water level in accumulator is maintained at what
Term
C 13 Mod 1 is 520 + - 10 PSI,
Definition
Operating steam pressure for C 13 Mod 1 is what
Term
C 13 Mod 2 is 450 +- 10 PSI
Definition
Operating steam pressure forC 13 Mod 2 is what
Term
2 steam pressure cut of switches
Definition
how many steam pressured cut off switches are there
Term
180 ft or 90% of shuttle travel
Definition
where are the two pressure switches located
Term
switches are wired in series
Definition
how are switches wired
Term
preset to close at 20 PSI +- 1 PSI and preset to open at 10 PSI +- 2 PSI
Definition
what are the preset conditions for the switches
Term
2500 PSI
Definition
The hydraulic system supplies pressurized fluid at what PSI
Term
1144 gallons
Definition
The fluid capacity for the gravity tank is what
Term
600- 800 gallons
Definition
The operating level of the gravity tank is what
Term
90 gallons
Definition
The auxiliary tank is how big
Term
reclaim fluid vented from catapults
Definition
The 90 gallon auxiliary tank does what
Term
3 hydraulic pumps
Definition
how many pumps are in the catapult system
Term
73 gallons per minute
Definition
The main hydraulic pump delivers fluid at what rate
Term
94 % to the system and 6% to the pump
Definition
What percentage goes to system and what percent stays in pump
Term
85 to 125 F
Definition
what is the maintained fluid operating temperature
Term
2500 PSI +- 50 PSI
Definition
what is the controlled pressure to operate all catapults
Term
floating piston
Definition
The accumulator provides a working area for this
Term
The Chevron packing is facing the pressure
Definition
which direction is the chevron packing facing in the floating piston
Term
Air Flask
Definition
this is a steel sphere that stores high pressure
Term
70 cubic ft of 2500 PSI
Definition
The Air Flask has this much of air pressure
Term
Delivery Control Unit
Definition
this directs fluid to either main accumulator or back to gravity tank
Term
Relief Valve
Definition
this prevents over pressurizing of the system
Term
3100+- 50 PSI
Definition
DCU relief valve is set to relieve at what PSI
Term
57 filter elements
Definition
The Filter Unit consists of how many elements
Term
Pressure regulator
Definition
this reduced hydraulic system below 2500 PSI
Term
start booster pump to full piping and provide initial pressure
Definition
what is the first step to operating hydraulic system
Term
start pirmary pump and let it run for 1 minute
Definition
What is the second step to operating hydraulic system
Term
Launch Valve
Definition
this stops the flow of steam into power cylinder when launch is complete
Term
Roto Launch Valve
Definition
this type of valve is comprised of three sections
Term
steam section, operation control section, hydraulic operating section
Definition
Name the 3 sections of the Launch Valves
Term
two rotating valve plugs
Definition
the steam section consists of a body housing how many valve plugs
Term
Operating control section
Definition
this allows the axial movement needed for seating and unseating the stem plug and rotational movement needed for opening and closing launch valve
Term
Rotator links and levers
Definition
this provides a means of rotating the plugs to open or close the valve
Term
crosshead
Definition
This transfers the motion of hydraulic cylinder piston rod to rotator lever
Term
15 inches for fully open
Definition
this is how many inches for crosshead to fully open launch valve
Term
Hydraulic operating section
Definition
This transfers the hydraulic energy into mechanical force for opening and closing the valve
Term
Launch Valve stroke timer installation
Definition
this provides a method of monitoring and detecting variations in launch valve performance
Term
Control Console or Central charging panel
Definition
this is where the LV clock timers are located at
Term
3 timer switches
Definition
how many switches are on the launch valve
Term
S580 switch
Definition
the first pressure switch is what
Term
750 PSI
Definition
the S580 switch starts with how much PSI
Term
S581
Definition
the first stop time limit switch is what
Term
3 1/2 inches and stops Clock 1
Definition
the S581 switch measures what distance and does what else
Term
S582
Definition
the second stop time limit switch is what
Term
9 inches and stops Clock 2
Definition
the S582 measures what distance and stops what
Term
90-110 F
Definition
the Launch Valve hydraulic lock Panel operates from low pressure air system at what temperatures
Term
Launch Valve hydraulic lock Panel
Definition
This consists of two solenoid operated air valves
Term
Red indicates LPL ( Launch Pilot Latch) is energized
Definition
what does a red light indicate on LPL
Term
White indicates LPL (Launch Pilot Latch)is de-energized
Definition
what does a white light indicate on LPL
Term
Butterfly exhaust valve
Definition
Vents that expended steam from power cylinders after launch and retain during launch
Term
between exhaust manifold and overboard discharge valve
Definition
this is where the butterfly exhaust valve is located
Term
a flextallic gasket
Definition
The butterfly valve uses this type of gasket as steam a gasket within the flanges of the valve
Term
close exhaust is deenergized
Definition
this happens when launch complete is energized
Term
air gauges
Definition
this used to monitor low pressure air from operated pilot valves
Term
keeper valve
Definition
this is designed to keep the exhaust valve closed while launch valves are open
Term
3 ports
Definition
the keeper valve has how many ports
Term
inlet from exhaust, inlet from launch valve hydraulic lock, and outlet port to closing side of exhaust valve
Definition
three ports on the keeper valve are
Term
thrust exhaust unit
Definition
this is located between the launch valve/exhaust valve and power cylinders and it directs steam from launch valve to power cylinders
Term
.750 or 3/4 inch
Definition
The pressure breaking orifice elbow is how long
Term
capacity selector valve body
Definition
this provide a working area for valve internal components
Term
two ports - inlet and outlet
Definition
the valve body contains how many ports
Term
bonnet
Definition
this provides a connection between valve body and motor unit
Term
O ring
Definition
this seals the area between piston and spindle
Term
maximum : 320, minimum : 20
Definition
The motor will automatically stop the valve at what maximum and minimum setting
Term
automatic - white light, jog - green light, hand wheel- amber light and defeat interlock- red light
Definition
the mode control has these four modes of operation and they are indicated by what color
Term
capacity selector valve body
Definition
this provide a working area for valve internal components
Term
two ports - inlet and outlet
Definition
the valve body contains how many ports
Term
CO
Definition
who can only authorize use of Defeat Interlock
Term
the readout station
Definition
this has 3 digital readouts to reflect valve command position settings
Term
Deck Readout Position
Definition
this allows Catapult Officer to dial in Command CSV settings for launch
Term
3 selector knobs for dialing settings
Definition
the Deck Readout position has how many selector knobs
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