BCH Boat Operations Flashcards
What are the six Coxn Responsibilities?
- Safety and Conduct of passangers and crew
- Safe operations and navigation of the boat
- Completion of mission or sortie
Respond - Hazards to life or property
- Violations of laws or regs, not auxiliarist.
- DISC to ATON
There are three basic boat crew positions on boats:
(01) Coxswain,
(02) Engineer,
(03) Crew member
An auxiliarist on official orders may perform many Coast Guard duties, including:
boat crew member and boat engineer, but is not a military member of the Coast Guard
duties of a trainee are to learn and safely perform the practical tasks prescribed for crew members?
Helmsman, Lookout, Towing watches, Anchor watch, Assist with piloting and navigation.
Helmsman, Rig towing and mooring lines, Act as the boat swimmer.
Administer first aid, Operate damage control equipment
Lookout may report bearings in ?
Relative only
Bearing are always reported in 3 digits?
ZE ROH - WUN- TOO- TREE- FOWER- FIFE- SIX - SEVUN - AIT - NINER
Objects in the sky are located by their
relative bearing and position angle.
position angle of an aircraft is its height in degrees above the horizon as seen from the boat. The horizon is?
0° and directly overhead is 90° or“Zenith.” The position
There are two common scanning methods:
(01) Left to right and back again.
(02) Top to bottom and bottom to top.
One technique is to scan in small steps of about 10° and have them slightly overlap while moving across the field of view.
The helmsman is responsible for the following
Safely steering the boat.
Maintaining a course.
Carrying out all helm commands given by the coxswain.
There are two methods to determine if the anchor is dragging:
(01) Check for tension on the anchor line.
(02) Check the boat’s position.
swing circle’s radius - is equal to the boat’s length plus the length of anchor line/chain that has veered
(Example: 40-foot boat + 150 feet of anchor line
out = 190-foot swing circle).
Fatigue reduces the power of?
observation, concentration , and judgement.
how many symtoms of fatigue are there?
- Inability to focus or concentrate/narrowed attention span.
- Mental confusion or judgment error.
- Decreased coordination of motor skills and sensory ability (hearing, seeing).
- Increased irritability.
- Decreased performance.
- Decreased concern for safety.
Coxswains must be aware of the dangers that exist when crewmembers
push themselves beyond reasonable limits of performance
Some preventive measures are:
- Adequate rest.
- Appropriate dress for weather conditions.
- Rotating crew duties.
- Providing food and refreshments suitable for conditions.
- Observing other crewmembers for signs of fatigue.
Personnel in a duty status
shall not consume alcohol for a
minimum 12 hours prior to assuming duty.
What is Inertia?
inertia is the tendency for a vessel at rest to stay at rest. The more mass a vessel has (the greater its displacement), the harder it is to get it moving
Set a Course to Lessen the Effect of the Seas
Do not try to tow a vessel either directly into or directly down large seas. Tow on a course to keep the seas 30°-45° either side of dead ahead or dead astern.
what is a pendent?
A pendant is used to reduce wear and chafing at the towline end (particularly the eye and its splice).
what is a bridle?
A bridle or “Cats Paw” is used when both legs can be rigged to exert an equal pull on the hull of a distressed vessel, and is preferred for heavy weather towing
Drogue has how many feet of 2 inch DBN?
200 ft
where is the danger zone established on a tow approach?
from the outside, size of the danger zone depends upon conditions and arrangement.
What is optimum position?
Optimum position is the position taken by the rescue vessel which allows the crew the safest opportunity to pass the towing equipment to the vessel to be
towed.
Optimum position provides better vessel control, while keeping appropriate distance from the distressed vessel and maintaining a safe escape route in case of an emergency.
what is maneuvering zone?
90 arc; 45 degrees fwd and 45 degrees aft of your tow bitt.
when passing the heaving line, how much shall you have in one hand?
2/3
Opening maneuvers consist of?
opening by pivoting or opening by backing.