Unit 3 Flashcards
Num buoys
Cone-shaped. Always marked with red markings and even numbers. They mark the edge of the channel on your starboard (right) side when entering from the open sea or heading upstream
Can buoys
Cylindrical-shaped. Always marked with green markings and odd numbers. They mark the edge of the channel on your port (left) side when entering from the open sea or heading upstream
Lighted buoys
Use lateral marker shapes, colors, and numbers discussed previously. In addition, they have a matching colored light.
Daymarks
Permanently placed signs attached to structures, such as posts, in the water. Common daymarks are red triangles and green squares. These may be lighted also.
Intracoatal Waterway (ICW) symbols are most commonly found in
Daymarkers
Channels that are part of the ICW
identified by yellow symbols on channel buoys and markers
When following the ICW in a clockwise direction starting from new jersey and heading to brownsville, texas, these rules apply
Any marker displaying a yellow triangle should be passed by keeping it on the starboard (right) side of the boat. Any marker displaying a yellow square should be passed by keeping it on the port (left) side of the boat
Western Rivers System
The navigational markers aren’t numbered. Numbers displayed below daymarks along the system indicate the distance from the river’s mouth, these are not associated with the right or left side of the channel.
Non-lateral markers
Give information other than the edges of safe water areas. The most common our regulatory markers that are white and use orange markings and black lettering. These markers are found on lakes and rivers
Square
Give directions and information
Diamond
Warn of hazards and obstructions
Circle
Mark controlled areas
Crossed diamond
Mark exclusion (closed) areas
Safe water marker
White with red vertical stripes. Indicate on abstracted water on all sides. They mark mid-channels or stairways and maybe passed on either side.
Mooring buoy
White with blue horizontal band. Are usually placed in marinas and other areas where boats are allowed to anchor. These are the only buoys you may tie up to legally
Inland waters obstruction marker
White with black vertical stripes. Indicate an obstruction to navigation. You should not pass between these buoys and the nearest shore
Plow-style anchor
Good for most boots and get its holding power by plowing into bottom sediment
Fluke-style anchor
Similar to the plow style but is more lightweight. It is also good for most boats and get Citoyen power from its pointed flukes digging into bottom sediment
Mushroom anchor
Get its holding power by sinking into bottom sediment. It should not be used to anchor boats larger than a small canoe, rowboat, small sailboat, or inflatable boat since the holding power is weak. You should never depend on a mushroom anchor to hold your boat in rough water or weather
Prepare your anchor before setting out
Attached 7-8 feet of galvanized chain to the anchor. Helps prevent abrasion of the anchor line from sand or rock on the bottom. Be sure its strong enough to anchor your boat. Should be 7-10 times the depth of the water where you are setting anchor.
Cleat
Metal fitting on which a rope can be fastened
Downcurrent
In the direction the current is flowing
Downwind
In the direction the wind it blowing
Upwind
In the direction that is against the wind