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37 Cards in this Set
- Front
- Back
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What is the point of the Emergency Window Release System?
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In xase of damage to the pilot house during a roll over the EWRS provides for automatic or manual opening of the port and starboard aft windows allowing the free transfer of water trapped in the Enclosed Bridge, which may affect stability
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Where are the water sensors located?
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On the port and starboard bulkheads near the overhead
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How are the Emergency Windows held closed?
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The Emergency Windows are mounted on spring-loaded hinges and are held closed and locked down by a sliding lock assembly
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What component of the EWRS is located in the Auxillary Machine Space?
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An air compressor and resevoir assembly which provides charge air to the release system
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What component of the EWRS is mounted on the overhead at the center line in the Enclosed bridge?
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A back up CO2 actuator for manual release
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How are the Emergency Windows released?
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When activated by the sensors or manual actuator the charge system slides the locking bolt open which releases the spring-loaded window
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How is the EWRS tested?
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By pressing the EWRS release test switch just forward of the starboard window
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How is the system re-armed after testing?
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By resetting the test switch, pressing the reset button next to each window, closing the windows and securing the slide locks
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What is the CO2 fire suppressing system used for?
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Fire fighting in the engine room only and to be used only inemergency situations
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What must happen prior to activation of the system?
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All personnel must be evacuated from the compartment and all water tight doors sealed
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Where is the primary CO2 fire fighting agent stored?
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In auxillary space is two 25 lbs. bottles
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What are the three methods of releasing the fire supression system?
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Two 9 lbs. nitrogen actuators, one in enclosed steering and one in survivors, will charge the activation piping and release a pressure switch on the control head of the CO2 storage containers. The third way to activate the system is by removing the locking pin and manually rotating the activation lever on the CO2 bottle control head
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What is the first event after the CO2 has been released?
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The discharge manifold lines are charged to a pressure operated siren and a pressure switch which energizes the pre-discharge warning strobe light, the engine stop solenoids, and the red "CO2 Pre-discharge" light located on the CO2 system indicator panel in the survivors compartment. A seperate line sends CO2 to a warning siren in the engine room.
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What is the second event after the CO2 has been released?
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Along a seperate discharge line, the pressurized CO2 activates the time delay cylinder mounted on the aft starboard bulkhead of the survivors compartment
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What is the third event after the CO2 has been released?
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The discharge delay cylinder delays release of CO2 into the engine room compartment for 30 seconds. This delay allows time for the siren and strobe to warn personnel to evacuate the compartment. If all personnel are accounted for, or for manual activation in the event of malfuction, the delay cylinder may be overridden by rotating the manual control lever on the discharge delay cylinder
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What is the fourth step once the CO2 has been released?
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Once the discharge delay cylinder is activated, CO2 will be released into the compartment. In addition, the discharged CO2 will pressure activate the engine room air damper and the red "CO2 Discharge" light located on the CO2 system indicator panel
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How many bilge pumps are located on the 47?
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Seven
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What are the specifications of the bilge pumps?
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They are 33 gpm, submersible, 12 volt DC manufactured by
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Where are the bilge pumps and discharges located?
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Forward compartment starboard at frame 10 discharges at frame 11. Auxillary compartment port at frame 8 discharges at frame 9. Survivors compartment port and starboard of the fuel tank at frame 5, both connect to engine room discharge. Engine room port at frame 4 discharges at frame 3, starboard at frame 1, discharges at frame 3. Lazzarette port at transom, discharges at transom
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What are the specifications of the discharge lines?
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They are fitted with an in-line check valve mounted ina horizontal position and they are attached to a through-hull fitting with two hose clamps
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What energizes the bilge pumps?
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A sensor switch activates when the water level reaches 10 inches.
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Why is the level switch above the height of the bilge pump?
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To avoid discharging oil floating in the bilge water
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What sounds the bilge alarm?
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The alarm is connected to the boat horn on the mast platform
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What are the three settings that the bilge alarm can be set to?
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Manual, Automatic and off
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How may the engine room be de-watered other then the bilge pumps?
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By connecting the P-6 pump to the engine room de-watering standpipe, the standpipe takes suction from the engine room bilge
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How many bilge flooding alarm sensors are located on the 47?
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Six sensors are on the 47, each near a bilge pump with the exception of the forward port engine room bilge pump
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At what level are the bilge alarm sensors mounted and why?
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The sensors are mounted approximately 5 inches below the bilge pump activation sensors. They will activate the alarm prior to the bilge pump's activation to alert the crew of flooding
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What is the purpose of the bilge alarm system?
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The bilge alarm system operates independently of the dewatering system. The only purpose of it is to alert the crew of bilge flooding
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What are the two sounds that accompany the alarm activation?
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The alarm sounds the boat horn and the alarm panel located in enclosed steering will beep
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How may both of these sounds be stopped?
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By pushing the silence button on the alarm panel
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What are the two options on the selector switch of the alarm panel?
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Moored and Underway
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What does the Moored alarm sound like?
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The horn sounds continuously
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What does the Underway alarm sound like?
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The underway alarm sounds for approximately 8 seconds then silence. This allows the crew to contact the base without the alarm sounding over the radio
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Where is the bilge alarm light and what color is it?
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The bilge alarm light is amber and located on the open bridge. It will remain lit regardless of which mode the selector switch is in
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Where is the alarm panel located?
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In the enclosed bridge on bulkhead 8 starboard side above the bilge pump control panel. A light on the panel indicates power to the system
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What are the five spaces that have flooding sensors in them?
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Forward compartment (1), Auxillary compartment (1), Gear space (2, port and starboard), Engine room (1, aft only), and Lazarette (1)
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What is the fire fighting policy of the Coast Guard?
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Coast Guard personnel shall not engage in independent fire fighting operations expect to save a life or in the early stages of a fire to prevent a significant threat without undue risk. For fire fighting activities involving commercial vessels and waterfrot facilities, Coast Guard personnel shall not actively engage in fire fighting except in support of a regular fire fighting agency under the supervision of a qualified officer
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