CHART NAVIGATION Introduction Flashcards
The first rule of survival in cold water is
stay as dry as possible. Try to jump into the life raft by jumping directly into the life raft
If you must jumpe into the water to enter the life raft
Jump as close to the raft as possible
hold on to the painter line
f the liferaft capsizes
ll personnel should leave the raft and right the raft using the
righting straps. To upright an overturned raft, stand on the CO2 cylinder, grab the straps and lean
back.. There is usually a sign that says “right here”.
To help people join you in the raft use the
heaving line
before abandoning through everything that _______ over the side
floats. If you have time, tie the debris together
procedures aboard the raft
- Use the handpump to pump up the raft floor
- Use a sea anchor (rouge) to reduce drift and stay close to your last position
- take the sea sickness pills from the service pack no matter how strong your stomach is
- Establish a chain of command and set watches
- Boost moral (have them go through the contents of the bag so they know they have resources),
- ive people jobs, don’t waste they energy
- If there are more than one raft, tie them together. This makes them more stable, increases moral, and is a bigger visual search target
If a vessel sinks to 15 feet
the hydrostatic trip releases the raft from the cradle by releasing the tie-down strap. A weak link in the painter keeps the raft from being pulled under by a sinking vessel. This is in case the vessel sinks in deep water (over 100 ft) while the painter is still tied to the vessel.
Falling overboard occurs most often as a result of careless operation of the vessel or inattention. Most man overboard situations are preventable. Some examples of careless behavior include:
- Running on deck
- Failure to keep a proper hand-hold in a seaway
- Sitting on gunwales
The following procedures should be used in the event of a man overboard:
- Loudly announce “man overboard (port or starboard) side”
- Throw life rings or floats
- Immediately turn the stern away from the person
- Keep the person in sight; on larger vessels, post a lookout
- Punch the MOB button on the GPS
- Approach the person from windward, unless circumstances dictate otherwise
- If in the vicinity of other vessels, sound the DANGER signal of 5 or more short blasts
to get their attention, and assistance
Approach methods for Man Overboard the Williamson Turner
The primary advantage of the Williamson Turn is to return on a Reciprocal Course.
In a Williamson Turn, the helm is put full over until the turn is 60° degrees from the original course. It’s then reversed until the vessel is on a reciprocal course. For example, if the original course was 000°, the reciprocal would be 180°.
Use a Williamson Turn when underway in thick fog or if no one saw the PIW go overboard.
Round Turn Approach Method for Man Overboard
- In a Round Turn (also called a single turn), the vessel simply turns 360° degrees using full rudder. This will return the vessel to the person in the shortest amount of time.
- The method is the quickest, and the best, if the vessel is very maneuverable and the person is in sight.
- The best solution is preventing falls overboard to begin with. Keep everyone on or in the boat. No sitting on the gunwales and no feet or legs dangling over the side (“bow riding” is considered negligent operation by some law enforcement agencies).
When requesting helicopter assistance please give
- accurate position, time, speed, course
- indicate any changes in plans or information
- give COMPLETE medical information including whether or not the patient is alert
The following procedures, if performed in sequence by an aircraft, mean that the aircraft is directing a surface craft toward the scene of a distress
A. Circling the surface craft at least once
B. Crossing the bow or projected course of the surface craft
C. Heading in the direction in which the surface craft is to be directed
Most Coast Guard Drop Pumps are
Crank engine by pulling starter cord rapidly.
You are doing a Williamson turn. Your vessel has swung about 60 degrees from the original course heading. You should _____.
Shift your rudder