Boat Crew Study Guide sn brook Kolarich June 2012 sta montauk The 8 responsibilities of a boat crewman
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- Navigate this page:
- Vessel Navigation Lights: Colors Arcs of Visibility
- Day Beacon
- Can Buoy
- Solving for an unknown variable: Speed, Distance, Time
- 47’ Watertight Compartments
- 47’ Fire Extinguishers
- Control Panel Indicators: 25’ RBS
- Damage Control Capsizing
- Fire Types Fire Type
Sound Signals Short: About 1 second Long: 4 – 6 seconds International I am altering my course to starboard, passing port to port I am altering my course to port, passing stbd to stbd I am operating astern propulsion Danger Not under command, restricted ability to maneuver, constrained by draft, engaged in fishing, sailing, towing, and pushing ahead. Inland I intend to leave you on my port side, altering my course to stbd I intend to leave you on my starboard side, altering my course to port Anchored Vessels/ Vessels Aground Vessel <100M Anchored: Rapid ringing of the bell for 5 seconds every minute. Vessel >100M Anchored: Rapid ringing of the bell for 5 seconds, followed by rapid ringing of the gong for 5 seconds every minute. Vessel Aground: 3 distinct strokes of bell, followed by ringing of the bell for 5 seconds, followed by 3 distinct strikes of the bell. Navigation Day Shapes: Anchored
Vessel not under command Vessel aground Restricted ability to maneuver
Towing
Constrained by draft Sailing
Fishing Night Lights: R W Fishing (lines) “red over white, fishing tonight” G W Fishing (nets) “green over white, trolling tonight” W R Piloting vessel “white over red pilot ahead” R R Not under command “red over red the captain is dead” R R R Constrained by draft R W R Restricted ability to maneuver “white over red the work I dread” G G G Mine Sweeping Vessel Navigation Lights: Colors & Arcs of Visibility Tow: Normally yellow over yellow (pushing) or yellow over white (stern tow) Masthead light: Red over green if sailing at night 
Green Red Yellow White Red Green Port: 112.5* red Stbd: 112.5* green Tow: 135.0* yellow Anchor: 360.0* white Stern: 135.0* white Mast: 225.0* white 225* Day Beacon: Day beacons are unlighted fixed structures fitted with a day board for daytime identification. Identify a nun buoy and a can buoy: • Nun buoy: Red, even numbers, pass on starboard side when returning from sea, port side when going out to sea. • Can Buoy: Green, odd numbers, pass on port side when returning from sea, on stbd side when going out to sea. Charts = Latitude = Longitude 1nm= 2,000 yards 1degree = 60 min 1 min= 60 seconds
1 nm = 2,000 yards 1 kt = 1nm/hr 1 kt = 2,000 yards/hour (this is equivalent to MPH)
3min(yards) To find your speed in knots, move decimal 2 places to the left 600 yards = _____ kts 600 yards = 6.00 kts 1873 yards = _____ kts 1873 yards = 18.73 kts To find your distance in yards, move your decimal 2 places to the right 10 kts = _____ yards 10 kts = 1000 yards 12.3 kts = ____ yards 12.3 kts = 1230 yards 6 Minute Rule: (Speed - 1 to right/ Distance - 1 to left) 6min(nm)
To find your distance in nm move decimal one place to the left 12 kts = ____ nm 12kts = 1.2 nm 16.7 kts = ____ nm 16.7 kts = 1.67 nm To find your speed in knots move decimal one place to the right 1.0 nm = ____ kts 1.0 nm = 10.0 kts 1.99 nm = ____ kts 1.99 nm = 19.9 kts Solving for an unknown variable: Speed, Distance, & Time 60D=SxT 60 D = SxT 60 (4) = S x 10 240 = S x 10 10 10
24 = S Speed is 24 kts “60 D street” D= Distance in nm S= Speed in kts T= Time in minutes Shank Flukes 
Stock Crown Boat Specifics: 25’ RBS
Boat Specifics: 47’ MLB
47’ Watertight Compartments: 1. Lazarette: Transom to frame 1 2. Engine Room: Frame 1 to frame 5 3. Survivor’s Compartment: Frame 5 to frame 8 4. Aux Space: Frame 8 to frame 10 5. Forward Compartment: Frame 10 to frame 15 6. Forpeak: Frame 15 to bow 7. Enclosed Bridge: Frame 8 to frame 10 above the main deck
Survivors Compartment: 5 lb CO2 Extinguisher: 4-6’ with 30 sec discharge 10 lb PKP Extinguisher: 6-8’ with 30 sec discharge Aux Space: (2) 25lb CO2 bottles for fixed System Closed Bridge: 5 lb CO2 Extinguisher: 4-6’ with 30 sec discharge 10 lb PKP Extinguisher: 6-8’ with 30 sec discharge
Two B-1 Fire extinguishers on board. One is in the cuddy cabin on the port side, and one is in the aft starboard deck box. Each extinguisher contains two pounds of dry chemical agent (ammonium phosphate) that will discharge in 9 – 10 seconds once the handle is activated. This type of extinguisher is designed to be used on class A, B, & C fires. Control Panel Indicators: 25’ RBS Overheating Indicator: If red indicator light comes on, the engine speed will be gradually reduced to approximately 1800 RPM and the engine will stop after 20 seconds. The overheating indicator is activated via the engine control module by two overheat sensors mounted on the engine. Oil Pressure Indicator: If oil pressure becomes low, < 23psi at 1800 RPM, the green oil light will come on. Alternator Indicator: The red indicator light will come on if there is a malfunction in the charging system. . Each 12 volt alternator is rated at 60amp at 2300 PRM, and 48 amps at 1000 RPM. Programmed Fuel Injection Indicator: The red indicator light will come on when the ECM senses an abnormality from one of the nine engine-mounted sensors. BECCES Loss of control of engine RPM: Crewmember should: Check throttle and shift control cables Check throttle arm and engine Report all findings to coxswain Loss of fuel pressure: Crewmember should: Check aft compartments and aft deck for fuel Check for fuel around engine cover Check condition of fuel filters Check engine fuel lines Check engine fuel filter and water separator Loss of lube oil pressure: Crewmember should: Check outboard engine area for oil Verify oil level on dipstick Check that spin-on oil filter is tightly installed Check oil drain fitting for security Overheating engine: Crewmember should: Check engine cover with back of hand for signs of overheating Check engine cover for signs of steam If possible, tilt engine forward and check cooling water intake for obstructions Fire in the engine room: Crewmember should: Yell “Fire Fire Fire” One crew member will relay information between the engineer and the coxswain One crew member should go to aft deck. “Standing by to close the vents!” “Standing by to move pump forward!” “Standing by to anchor!” If there is a fire in the Aux space, you will see smoke leaving the vents on the sides of the 47’, may feel heat in the boat. Hitting a submerged object: Crewmember should: Look behind the boat. “20 foot log 100ft off your port quarter!” One crew member will relay information between the engineer and the coxswain while they run a vibration test. Other crew member will check bilge panel and compartments for water, always visually checking and asking permission to enter each compartment. Underway Limits
Heavy Weather Heavy weather is defined as seas, swell, and wind conditions combining to exceed 8 feet and/or winds exceeding 30 knots. If heavy weather is forecasted, it should be considered when planning a mission. Reliable and up to the minute information is critical for planning.
Required hypothermia protective clothing. Helmet (helmet straps must be secured and adjusted properly). Survival vest and equipment. Waterproof footwear and gloves should be worn. Eye protection may be necessary for visibility, particularly for persons wearing glasses, and will also protect against glass shards should a window be broken. Boat crew safety belt must be worn and adjusted correctly. Personal seat belt must be worn when in a seat. The coxswain is responsible for ensuring that all required equipment is worn, and worn correctly. Damage Control Capsizing: Average underwater time is 8-12 seconds. When boat returns to surface, assess situation. Check status of crew, check for lines overboard, if engines work, move to safe water. During heavy weather crew will be strapped in. 25 Capsizing: Boat will float if capsized! Egress Procedures Brace for impact Remain strapped in until motion has subsided Plan egress with crew Best swimmer first then the weakest swimmer  Swim clear and away Muster account for missing Remain upwind/up current Attempt to climb on hull Check injuries provide first aid Inventory signaling equipment, PLB Check for gas before lighting off pyro Stay with the boat P-6 Dewatering Pump: Engine is 6.5 horsepower and pumps 250 gallons per minute with a 12 foot lift. The P-6 can run for 4-5 hours on a full tank of gas and can connect to either the fire fighting standpipe to suck water straight from the ocean or connect to the dewatering standpipe to suck water out of the engine room. Bilge Pump System: 7 Bilge Pumps rated at 33 GPM. Bilge Alarm activates at 5”, Pumps activate at 10” until no load is detected by pumps. 25’ has hand bilge pump system with 24” hose under starboard aft seat next to the cabin dewatering pump.  
Stbd Port 47’ bilge alarm: U/W: Intermittent 8 second horn blast Moored: Continuous horn blast Bilge pump panel located on aft bulkhead in enclosed bridge 25’ cabin dewatering pump: 1,100 gallons an hour Activates at 2 1/8” Turns off when no load is sensed by the pump’s impeller Discharge is located on the aft stbd exterior cabin bulkhead, above the deck edge walkway
CO2 System: The carbon dioxide fire suppression system is used for fire fighting in the engine room only. The system is only to be used in emergency situations. All personnel must be evacuated from the compartment and all water tight doors sealed prior to activation of the system. Activation: The CO2 system can be activated from three locations on the 47’ MLB. Actuators (located in the enclosed bridge between the chairs and one on the aft bulkhead of the survivor’s compartment) punctures a nitrogen cylinder which charges the activation piping. This activation system releases a pressure switch on the control head of the CO2 storage containers releasing the CO2 into the piping. A third way to activate the system is by removing the locking pin and manually rotating the activation lever on the CO2 bottle control head.
Fire Types
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