1 navigation system division section six section sixpatondiscrepancyreview
TRANSCRIPT
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1
Navigation SystemDivision
Section SixSection Six
PATONPATON
DISCREPANCYDISCREPANCY
REVIEWREVIEW
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Presentation Presentation ObjectivesObjectives
To acquire a general knowledge of the Auxiliary guidelines for checking a private aid for discrepancies.
To help the AV to easily recognize a discrepancy on an aid to navigation.
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A
I
D
D
E
F
E
C
T
S
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MORE
ISSUES
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Battery Box
There are single and double battery boxes.
A vent valve must be installed.
Box may be painted the color of the buoy.
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Sound Systems
There are three main types of wave actuated sound signals:
WhistleBell
Gong
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Whistle Whistle is made
of cast bronze and is mounted inside the cage.
As air is forced through the whistle, the familiar drone sound is made.
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BELLS Bells used on
lighted and unlighted buoys and are made of a copper-silicon alloy.
External tappers impact the fixed bell when wave motion causes the buoy to roll.
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LED LANTERN
Light Emitting Diode
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Model 601
Not approved for use by USCG.
2 NM range. Self-contained. May be used on
private aids. Small, lightweight,
easy to install,inexpensive.
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Programming the light characteristic:
Lantern color determined by colored dot near serial number.
Any flash characteristic can be programmed using a Universal TV remote control.
Security code must be entered to prevent accidentally changing characteristic.
Follow instructions supplied with lantern.
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Service Life of Lantern LED lanterns do not burn out. Light output degrades over time. Replace lanterns according to Duty
Cycle. 10-29% duty cycle replace every 12 yrs. 30-100% replace every 8 years. Replace battery every 4 years.
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Small Lights Small Lights and Daymarksand Daymarks
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Don’t
get
too
close
to this
ATON!
Stay
in the
channel.
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Check after storms.
Panels are designed to
break away so that high winds or
waves will not destroy the supporting
pile or structure.
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Single Pile Structure Used in protected or
semi-exposed locations where fixity can be attained.
2
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Multiple Pile Structures Used when fixity can not be
achieved with single pile. Two categories:
Dolphin
Platform Structure
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Dolphin
Battered pileThree 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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Dolphin
Cluster pile Three or more piles
driven vertically with their surfaces in contact with each other and wrapped tightly at various heights.
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#7, a small light, off Castle Island in Boston Harbor.
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Platform Structure
Three or more separate piles driven vertically, connected at the top by a platform that spreads the load over all the piles. Usually is the foundation for skeleton towers.
Lantern
Battery Box
Tower
Platform Structure
Things to check on this aid.
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Dayboards
A dayboard shall always be installed for maximum utility.
The dayboard should be the dominant component of the silhouette with the battery box hidden behind it.
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On what side should you pass
this mark?
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It is a little easier to make the decision in the daylight!
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Raising the dayboard makes it more obvious.
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2
What’s wrong with this daymark? 2
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Dayboards
The letter refers to the shape or purpose of the dayboard.
S-Square T-Triangle J-Junction
M-Mid-Channel K-Range N-No Lateral Significance
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Dayboards
The letter represents the key or background color.
R- Red
G- Green
W- White
B- Black
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DayboardsAdditional information is shown by letters placed
after a dash (-)I - Intracoastal Waterway.SY - yellow squareTY - yellow triangle
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Front Panel
Symbol
KWRMain panel is white.
Center stripe is red.
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Dayboards The letter indicates the color of stripe (range dayboards only).
R- Fluorescent red G- Fluorescent green W- White B- Black
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Operational Requirements
ContrastVegetation -
Background
lights
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Backing Material Delamination should not have
progressed over more than 25 percent of the backing material.
Material should not be sufficiently warped to visibly detract from the signal.
Mounting points should not be softened or deteriorated to the degree that the board may come loose during a storm.
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Films, Numbers, Letters, and Borders. Delamination of the film should not
progress over 10% of the surface area.
Material should not be cracked, checked or abraded so as to provide a dull or roughened top surface.
Attached material should not have peeled more than 10% of the surface area.
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Fading. . . There is no practical way to measure
fading.
Replacement is based on the judgment of servicing personnel.
Aid must be able to display the intended signal until its next scheduled service date.
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. . . more FADING
1 53NEW FADED REPLACE
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All light houses are now unmanned, except for Boston Light—the oldest, continuous operating lighthouse in America.
Check each lighthouse for proper operation.
Refer to your chart or Light List for the proper characteristics.
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Discrepancy reports may be reflected in the LNM - Local Notice to
MarinersThe Local Notice to
Mariner is generated using the I-ATONIS
Database
• Chart Corrections
• Discrepancies
• Light List Changes
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What is meant by the term “checking” of a Private aid?
You completed a full pre-underway check of your measuring devices per the guidelines and determined that they are working accurately and that all of the necessary tools are available.
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What is meant by the term “checking” of a Private aid?
On-scene, you took a fix alongside the aid in the channel per the guidelines and recorded the data on a worksheet, including all of the Quality data as evidence.
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What is meant by the term “checking” of a Private aid?
On-scene, you checked the depth of water per the guidelines and recorded the data on a worksheet, including the Quality data as evidence.
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What is meant by the term “checking” of a Private aid?
You completed a PATON Discrepancy Report to notify the Coast Guard of any discrepancy.
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DO NOT REPORT private aids observed as “Watching Properly” to the
Coast Guard.(Unless you are verifying the aid)
ALWAYS REPORT all Private Aids to Navigation activity as a Mission 31 to AUXDATA on an ANSC 7030 Activity Report –
Mission Individual form.
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Any more questions about reporting Private
Aids to Navigation?