Boat Crew Flashcards
Sea sickness natural remedies
Focus on the horizon, change positions
Anchoring/ trailering fatigue limits
30 minutes for every hour
Shock treatment
Put in comfy position, elevate feet, keep person still and wrap in a blanket to maintain body temp
CPR meaning
Cardio pulmonary resuscitation
CPR ratios
30 to 2 for all except when 2 people doing cpr on a baby then it’s 15 to 2 each person
Free surface effect
When a vessel with partially filled spaces is rocking the contents of the spaces will shift. The center of gravity moves over to the side, making the vessel less stable, baffles are used to prevent this
Free communication with the sea
Water coming in and out of the boat freely without interruption
Down flooding
When a space is being flooded with water all the way to the bottom of the boat (example: water going into the bilge in heavy weather)
Restrictive waterways
Horn harbor
Winter harbor
Little wicomoco
Swash channel
Eastern shore (besides cape Charles)
Smith point out to 1 nm
Restricted waterways
Hole in the wall
What is variation
The difference between magnetic and true north
Two types of stability
Longitudinal and transverse
What is the luminosity of the MK-79?
12,000 candle power
What is the candlepower of the MK-127
125,000
How fast does the MK-127 descend?
10-15 ft per second
What is a preferred channel marker
Preferred channel is the topmost color; if topmost band is green, the preferred channel is to starboard; if the topmost band is red, the preferred channel is to port
Green can buoys
Odd numbers
Red nun buoys
Even numbers
Anchor to line ratio
5-7 ft times the depth
10 times in heavy weather
What makes a water tight hatch?
Seal, knifes edge, coam, dogs
OICS nav draft
5 feet
Size of fire extinguisher
2.5 pounds
ATON
Buoy numbers decrease when heading out to sea from a harbor
Dayboards
Used to help determine location on a chart
Chart 1
U.S. Chart No. 1 describes the symbols, abbreviations, and terms used on nautical charts
What is a light list
Light Lists describe each navigation aid including lists of lights (lighthouses), sound signals, buoys, daybeacons, and other aids to navigation in a specified area.
What is the coast pilot
The Coast Pilot consists of data pertaining to channel descriptions, anchorages, bridge and cable clearances, currents, tide and water levels, prominent features, pilotage, towage, weather, ice conditions, wharf descriptions, dangers, routes, traffic separations schemes, small- craft facilities, and Federal regulations applicable to navigation.
What is deviation
How much the compass deviates due to external forces and metals
