Aids to Navigation

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AIDS TO NAVIGATION
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INTRODUCTION DEFINITION TYPES OF AIDS LATERAL
BUOY SYSTEM IALA B, ICW R,R,R CONVENTION BUOYS
(FLOATING AIDS) COLOR, SHAPES, POSITION,
PURPOSE, TRAVEL MARKS HORIZONTAL MARKS VERTICAL
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DAYMARKS COLOR, SHAPES, POSITION,
PURPOSE, TRAVEL MARKS HORIZONTAL MARKS
VERTICAL LIGHTED AIDS COLOR BUOYS, LIGHTHOUSES,
SECTOR LIGHTS, LIGHT RHYTHMS BRIDGE
LIGHTING
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RANGES INTRACOASTAL WATERWAY MARKING
SYSTEM INTERSECTION WITH CHANNELS UNIFORM STATE
WATERWAY MARKING SYSTEM NAVIGATION
PUBLICATIONS
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AN AID TO NAVIGATION IS..........ANY
EXTERNAL OBJECT THAT HELPS MARINER TO
- WARN OF DANGERS OR OBSTRUCTIONS
- SAFE COURSE
- DETERMINE POSITION
LANDMARKS ARE NOT AIDS TO NAVIGATION
- BUT CAN BE USEFUL IF ON CHART FOR AREA
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AIDS TO NAVIGATION
BUOYAGE SYSTEM
OLD US SYSTEM ---LATERAL SYSTEM BLACK AND RED
BUOYS --WHITE LIGHTS NEW US SYSTEM -- - IALA - B
SYSTEM INTERNATIONAL ASSOCIATION OF LIGHTHOUSE
AUTHORITIES SYSTEM B GREEN, RED, AND
RED/WHITE BUOYS GREEN, RED, AND WHITE
LIGHTS BOTH USE CAN SHAPE TO PORT, AND NUN SHAPE
TO STARBOARD BOTH MARK SIDES (LATERAL LIMIT) OF
NAVIGABLE CHANNEL OTHER SYSTEMS ICW SYSTEM
(INTRACOASTAL WATERWAY ) UNIFORM STATE WATERWAY
MARKING SYSTEM
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AIDS TO NAVIGATION
MAJOR TYPES OF AIDS
BUOYS-- FLOATING AIDS OTHER THAN LIGHTSHIPS DAY
BEACONS -- UNLIGHTED FIXED STRUCTURES IN OR NEAR
THE WATER LIGHTED, ACTIVE VISUAL SIGNALS FOG
SIGNALS-- FLOATING OR FIXED AIDS THAT SOUND BELL,
WHISTLE, GONG, OR HORN RANGES -- FIXED PAIRS OF
MARKERS THAT SHOW CENTERLINE OF CHANNELS RADIO
AND RADAR BEACONS -- TRANSMITTER USED TO
BROADCAST SPECIAL ELECTRONIC SIGNALS
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RED
KEEP
RIGHT
ON YOUR
RETURNING
WHEN YOU ARE
FROM THE SEA
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KEEP RED BUOYS ON THE RIGHT WHEN RETURNING FROM
THE SEA
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ARBITRARY DIRECTION FROM SEAWARD
IN COASTAL WATERS PROCEEDING IN A CLOCKWISE
MOVEMENT WILL PUT RED BUOY ON RIGHT (STARBOARD)
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NUN BUOY
N 8
KEEP TO STARBOARD SIDE OF VESSEL WHEN RETURNING
FROM THE SEA
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CAN BUOY
C7
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KEEP TO PORT SIDE OF VESSEL WHEN RETURNING FROM
THE SEA
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GREEN,
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IF UPPER BAND IS
THE PREFERRED CHANNEL WHEN
GR
IF UPPER BAND IS RED, THE PREFERRED CHANNEL
WHEN PROCEEDING FROM THE SEA IS FOLLOWED
PROCEEDING FROM
THE SEA IS FOLLOWED BY KEEPING THE MARK ON THE
PORT SIDE OF THE VESSELL
BY KEEPING THE MARK ON THE STARBOARD SIDE OF THE
VESSEL
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8
RG
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LIGHTED BUOYS
R 22 FL R 4 SEC
R 22 FL R 4 SEC
NOTE MAGENTA CIRCLE
NOTE MAGENTA CIRCLE
SOLAR PANEL
RADAR REFLECTOR
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LIGHTED BUOY WITH RADAR REFLECTOR
LIGHTED BUOY
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LIGHT RHYTHMS
FIXED LIGHT
STAYS ON ALL THE TIME
LESS THAN 50 FLASHES / MINUTE
FLASHING
QUICK FLASHING
GREATER THAN 50 LESS THAN 80 FLASHES / MINUTE
STAYS ON LONGER THAN OFF
OCCULTING
STAYS ON AS LONG AS IT IS OFF
ISO
GROUP FLASHING (2)
GROUP FLASHING (3)
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PERIOD TIMING OF LIGHTED AIDS
FLASHING GREEN 5 SECONDS
FLASHING RED 5 SECONDS
5 SECONDS
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LIGHT RHYTHMS
PREERRED CHANNEL LIGHTED AIDS
COMPOSITE GROUP FLASHING
FL(21) G 6S
WILL FOLLOW TOP MOST COLOR
6 SECONDS
FL(31) R 8S
WILL FOLLOW TOP MOST COLOR
8 SECONDS
MID CHANNEL
MORSE A
WILL BE WHITE
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SPECIAL PURPOSE MARKS
HAVE NO LATERAL SIGNIFICANCE
ARE YELLOW IN COLOR
A YELLOW BUOY CAN DESIGNATE AN ANCHORAGE
LIGHT IS YELLOW FIXED OR FLASHING
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OCEAN DATA ACQUISITION SYSTEM BUOY
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BRIDGE LIGHTING
FIXED BRIDGE
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MID CHANNEL LIGHTED BUOY WITH RADAR REFLECTOR
PASS EITHER SIDE RED/WHITE VERTICALLY STRIPED
BUOY
RW 3CR FL Mo (A)
WHITE LIGHT
3CR
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SPHERICAL BUOY
SP G
G
MARKS MIDDLE OF SAFE WATER PASS EITHER SIDE
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SPAR BUOY
S
VERTICALLY STRIPED BUOYS MARK THE FAIRWAY OF MID
CHANNEL
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LIGHTSHIPS WERE USED WHERE LIGHTHOUSES COULD NOT
BE USED. HAVE BEEN REPLACED BY LARGE
NAVIGATIONAL BUOYS WHICH DOUBLE AS ODAS OCEAN
DATA ACQUISITION BUOYS
NANTUCKET
NANTUCKET SHOALS
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Large Navigation Buoy
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RANGES
IF YOU SEE RANGE
IF YOU SEE RANGE
IF YOU SEE RANGE
YOU ARE HERE
YOU ARE HERE
YOU ARE HERE
TO LEFT OF CHANNEL
ON CENTER OF CHANNEL
TO RIGHT OF CHANNEL
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Range Dayboards
KWB
KGW
KWG
KBW
KWR
KRW
KRB
KBR
KBG
KRG
KGB
KGR
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SOUND BUOYS
BELL
SC
sc
sc
GONG
HORN
WHIS
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Lighthouse

• Enclosed edifice that houses protects, displays,
  or supports visual, audible, or radio aids to
  navigation.
• Can be manned or unmanned
• Located in an offshore, wave swept, exposed
  environment
• Or as a landfall object

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Single Pile

• Used in protected or semi exposed locations where
  fixity can be attained

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Dolphin

• Battered pile
• Three to seven piles driven at an angle with the
  bottoms spread and the tops secured with wire
  rope or bolts and shear connectors

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INTRACOASTAL WATERWAY
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INTRACOASTAL WATERWAY ICW
ICW MARKS HAVE YELLOW BAND BUOYS CANS,
NUNS DAYMARKS LIGHTED UNLIGHTED
FOLLOW THE YELLOW BRICK ROAD ON THE ICW
ON THE WAY TO FLORIDA
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Intracoastal Markings
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INTERSECTION OF
W A T E R W A Y
WHEN ICW INTERSECTS WATERWAY YELLOW DAYMARKS
APPEAR ON CANS, NUNS, MARKS WHICH ARE PART OF
THE OTHER WATERWAY
INTRACOASTAL WATERWAY ICW
FOLLOW THE YELLOW MARKS KEEP TRIANGLES TO
RIGHT AND SQUARES TO LEFT WHEN PROCEEDING DOWN
THE COAST
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PREFERRED CHANNEL ICW ROUTE SECONDARY ROUTE
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UNIFORM STATE WATERWAY MARKING SYSTEM
EXCLUSION OR PROHIBITED AREA
DANGER
DAM RAPIDS SWIM AREA WATER INTAKE
DAM SPILLWAY ROCK WRECK SHOAL
ROCK
SWIM AREA
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UNIFORM STATE WATERWAY MARKING SYSTEM
CONTROLLED AREA
INFORMATION
MULLET LAKE MANATEES BLACK CREEK
NO WAKE
SLOW NO WAKE ANCHORAGE
MUD CREEK
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Information and Regulatory Markers
Danger
Exclusion Area
Controlled Area
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AIDS TO NAVIGATION
NAVIGATION PUBLICATIONS
CURRENT CHART OF BOATING AREA USCG -- NOTICE TO
MARINERS GET FREE FROM COAST GUARD DISTRICT
THIS KEEPS YOUR CHART CURRENT LIGHT LIST
BACKGROUND INFORMATION ON ALL LIGHTED AIDS
OBTAIN AT MARINE STORES OR
US GOVERNMENT SUPERINTENDENT OF
DOCUMENTS US PRINTING OFFICE
WASHINNGTON D.C. 20402