Small Boat Ops and Weather By LT Fullan. Types of Boats Motor Boat –closed compartment fwd and...
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Transcript of Small Boat Ops and Weather By LT Fullan. Types of Boats Motor Boat –closed compartment fwd and...
Types of Boats
• Motor Boat– closed compartment fwd and possibly aft– Captains gig red stripe– Admirals barge green stripe
• Motor Whale Boat– 26’ boat used for liberty, ready life boat– being replaced by the rhib
Types of Boats
• Lightweight and fast
• Reliable inboard engine
• Carry fewer passengers than MWB
• Used as ready life boat
• Good for interdiction opns
• Requires less complicated davit
Types of Boats
• Personnel Boats– look like a utility boat with seats– used for liberty launches– can have a canopy
• Utility– large cargo carrying– large number of personnel
OOD
• Control– 3 gongs = 10 min– 2 gongs = 5min– 1 gong = 1 min– shuts down the boats because of weather– supervises the loading– gives departure and return orders
Senior Line Officer
• Never overload
• Ensure everyone has life preservers on if necessary
• Give orders to avoid danger
• Maintain discipline
Coxswain
• In charge of the boat crew
• Drives the boat
• responsible for the passengers
• Responsible for the boat’s and crew’s appearance.
• Subj to the orders of the OOD and senior officer enbarked
• Enforces Boat etiquette
Boat Officer
• Embarked– at night– heavy weather– first run of the day– first run in new port– with senior officers and dignitaries– when deemed by the OOD
Boat Lines• Boat Falls - support the weight of the boat
• Steady Lines - fwd, amid, aft used to keep the ship parallel to the ship
• Monkey Lines - personnel use these when lowering the boat into the water.
• Frapping Lines - used to steady the boat when lowering and raising
• Sea Painter - attached to fwd inboard side. Used to keep the boat alongside while disconnecting\connecting the lines
Operations
• 50% during inclement weather
• No standing
• No smoking
• Enough life preservers for capacity
• Must have charts, compass, fog signaling equipment
• Follow the rules of the road
Operations
• Ship is slowed to steerageway and turned to create a lee
• boat is made ready for lowering (boat and davit crew)
• Boat is lowered to the deck’s edge
• boat is loaded (personnel hold monkey lines)
• Boat is lowered to waters edge, motor started
• Release after fall, forward fall, sea painter
Boat Etiquette
• Saluting– Coxswain salutes
• officers enter or leave
• officers pass nearby
• colors
• when passing another small boat– junior boat will slow to idle, coxswain and senior officer
embarked will stand an salute
– senior boat maintains course ad speed and returns salute
Boat Etiquette
• Embarking– Junior first on\last off and sit forward– Senior last on\first off and sit aft– Sit at attention
Boat Hails and Replies
• When a small boat approaches. The OOD questions the coxswain by– day - raised clenched fist– night - “boat ahoy”
Boat Hails and Replies• Coxswain Replies by:
– day • 8,6,4,2, wave off
– night• United States
• Defense
• Navy
• Naval Operations
• Name of command
• Aye, Aye
• No, no
• Hello
Terms
• Dew Pt. - temperature at which vapor condense
• Relative Humidity - amount of water vapor in the air at a given temperature
• Psychrometer - measures the humidity
• Anemometer - measures the relative wind speed and direction
Terms
• Clouds– Cirrus– Stratus– Cumulus– Cumulonimbus
• Atmospheric pressure - weight of the atmosphere in relation to that of sea level
Terms
• Air Masses - large volumes of air with the same temp and humidity
• Pressures– High - air flows out– Low - air flows in– Based on density and humidity
Terms
• Fronts– warm- warm overtakes the cold
• overcast skies
• steady rain
• poor visibility in front of the warm front
• Steady or lowering barometer
• warmer temps after it passes
Terms
• Fronts– cold - cold displaces the warm air mass
• Thunderstorms
• heavy rains
• sudden wind shifts as the front passes
• drop in temp
• rise in pressure
• rapid clearing sky
Terms
• Cyclones – low pressure areas– spin clockwise in the north and counter
clockwise in the south– called typhoons, hurricanes, cyclones
Storm Types
• Tropical depression - <= 33 knots of wind
• Tropical storm - 34 -63 knots of wind
• Hurricane - > 63 knots of wind
Hurricane
• Facing the wind the eye will be to the right in the north. The opposite in the south
• Falling barometer
• In the North the storm will track to the NW and then the NE. In the south the storm will track to the SW then to the SE.
Hurricane Evasion
• Determine the path of the storm in relation to your location
• Determine navigable and dangerous semicircles– place yourself at the storm center facing the
direction of movement - dangerous is to the right and navigable is to the left
• storm can turn into you
• storm speed is combined with wind speed
Hurricane Evasion
• Stay away from the center– strongest winds are near the eye
• Navigable Semicircle– Put the winds on the STBD quarter in the north
and the port quarter in the south
• Dangerous Circle– Put the winds on the stbd bow in the northern
hemisphere and the port bow in the southern hemisphere
Conditions of Readiness
• Cond 4 - possible destructive winds in 72 hrs• Cond 3 - anticipate destructive winds in 48 hours
– get fuel and rig for high winds• Cond 2 - anticipate destructive winds in 24 hours
– terminate liberty and prepare to get underway in 4 hours
• Cond 1 - anticipate destructive winds in 12 hours– sortie or extra lines