1. AV Training Presentation 2 More Documents

2. AV Task 1–3 – LNM – Local Notice to Mariners.
Chart No. 1 contains everything that is used on a nautical chart.
This is a document that should be reviewed and studied by every AV.
Also, keep a copy in your Navigation Kit for reference while underway.
Always compare your on-scene observations of an aid to the symbols and abbreviations that identify that aid on the NOAA chart.
Also, verify that the observations, the symbols and abbreviations shown on the chart and the narrative printed in the Light List all match.
AV Task 1–3 – LNM – Local Notice to Mariners.
Each AV must show a copy of the latest LNM for check off.

3. All bearing are in degrees TRUE.
All time are local times unless otherwise noted.
Partial list of abbreviations used in this report.
The General Information Block on a NOAA chart contains some important data bits. The chart’s name is contained here which reflects the name of the local waterway covered by the chart. The official chart number is printed at the lower left-hand corner of the chart. The data and edition of the chart is also included.
From a fix aspect: The chart’s horizontal datum is provided. Newer charts will show NAD83 or WGS84. Charts with horizontal datum other that these should not be used for Private Aid verification.
The horizontal datum shown on the NOAA chart should also be the selected horizontal datum used on the GPS.
From a depth point of view: The vertical datum shown on the NOAA chart should also be the depth unit of measure used on your echo sounder – feet, meters or fathoms. Be sure that your echo sounder is reading the correct vertical depth as is shown on the chart. A fathom represents six feet of water depth
Depths are usually identified as MLW-Mean Low Water or MLLW – Mean Lower Low Water. There are two highs and two lows tides in our AOR. MLLW is the average of the lower reading and is a more conservative expression. MLW is the average of both low readings. Depths are shown on a NOAA chart as numbers, dotted lines, color variations, etc.
Depths reported by AVs should always be considered as best estimates, and , when reported, must always be corrected to datum.
The guide for taking and reporting depth of water to a government agency is covered later in this presentation.

4. LNM lists all descrepancies to Private Aids.
Here is a practical display of the abbreviations used to identify a light house and for some lighted floating aids to navigation.
Note that many private aids to navigation are not charted.
The chart abbreviations should tell you:
The type of aid.
The assigned number for the aid.
The color of the aid – not true for light houses.
The shape of the aid.
Whether the aid is lighted.
If lighted, the light characteristic.
If lighted, the light period.
The depth of water where the aid is located.
Any special equipment affixed to the aid.

5. The LNM list the PATONs that have been corrected.
This page of Chart No. 1 shows the various abbreviations and symbols used to identify buoys and beacons on NOAA Chart.

6. Every AV candidate must show a copy of the Coast Pilot
Task 1-4
Coast Pilot
Every AV candidate must
show a copy of the Coast Pilot
Pages that affect the AOR
Where they normally operate.
This Chart No. 1 page shows the abbreviations used to identify the depth of the water on a NOAA chart.

7. Task 1-4 Coast Pilot Typical information Available in the Coast Pilot.
This Chart No. 1 page shows the abbreviations used to identify the depth of the water on a NOAA chart.

8. Task 1-5 Light List Cover of the Light List.
This Chart No. 1 page shows the abbreviations used to identify the depth of the water on a NOAA chart.

9. This Chart No. 1 page shows the abbreviations used to identify the depth of the water on a NOAA chart.

10. PRIVATE AIDS TO NAVIGATION
Included: Class I aids to navigation on marine structures or other works which the owners are legally obligated to establish, maintain, and operate as prescribed by the Coast Guard.
Included: Class II aids to navigation exclusive of Class I, located in waters used by general navigation.
Not included: Class III aids to navigation exclusive of Class I and Class II, located in waters not ordinarily used by general navigation.
This Chart No. 1 page shows the abbreviations used to identify the depth of the water on a NOAA chart.

11. Typical page of the Light List.
This Chart No. 1 page shows the abbreviations used to identify the depth of the water on a NOAA chart.
Typical page of the Light List.