Boat Crew Navigation

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Boat Crew Navigation

• This presentation is provided for shore-side
  training of Auxiliary Boat Crew Candidates
• This presentation may be used within District 11
  Northern Region

Michael L. Maddox, Ph.D. Captain (MSC) USNR
(Ret) District Commodore 1999-2000 DSO-MT, FSO-MT
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Rule 20

• (a) Rules in this Part shall be complied with in
  all weathers.
• (b) The Rules concerning lights shall be complied
  with from sunset to sunrise, and during such
  times no other lights shall be exhibited, except
  such lights as cannot be mistaken for the lights
  specified in these Rules or do not impair their
  visibility or distinctive character, or interfere
  with the keeping of a proper look-out.

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BCM 04-03-AUX

• Identify Common Navigation Lights Displayed by
  Ships and Boats
• Reference COMDTINST M16672.2D

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BCM 04-03-AUX

• A sailing vessel shall exhibit
• Sidelights and a sternlight
• A sailing vessel under 20 m may display a
  combined lantern at the top of the mast.

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BCM 04-03-AUX

• A sailing vessel may in addition to the
  sidelights and stern light exhibit two all-round
  lights at the top of the mast, red over green.

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BCM 04-03-AUX

• A vessel under oars and a sailing vessel under 7
  m may display an all-round white light in time to
  prevent collision.

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BCM 04-03-AUX

• A power-driven vessel shall exhibit
• A masthead light forward
• A second masthead light abaft of and higher than
  the forward one except that a vessel less then
  50 m shall not be obliged to but may do so.
• Sidelights and
• a stern light

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Power Driven Vsl underway gt50m
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Power Driven Vsl underway lt50m
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BCM 04-03-AUX

• A power-driven vessel under 12 m may, in lieu of
  the lights described in Rule 23a, exhibit an
  all-round white light and side lights.

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BCM 04-04-AUX

• One short blast
• I intend to leave you on my port side.
• Two short blasts
• I intend to leave you on my starboard side.
• Three short blasts
• I am operating astern propulsion
• Four short blasts
• Pilot vessel identification
• Five (or more) short blasts
• Danger signal

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BCM 04-04-AUX

• One prolonged blast
• I am leaving a dock or berth.
• I am power-driven, underway in fog.
• Approaching a blind bend in river.
• Two prolonged blasts
• I am power-driven, underway, not making way in
  fog.

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BCM 04-04-AUX

• One prolonged and two short blasts
• Sailing, towing, NUC vessel in fog
• RAM, fishing in fog (both u/w and anchored)
• One prolonged and three short blasts
• Being towed in fog and manned.
• Short, prolonged, short
• Optional signal for vessel anchored or aground in
  fog.

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BCM 04-05-AUX

• Distress Signals
• A high intensity flashing white light at regular
  intervals 50-70/minute

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Rule 2 Responsibility

• (b) In construing and complying with these Rules
  due regard shall be had to all dangers of
  navigation and collision and to any special
  circumstances, including the limitations of the
  vessels involved, which may make a departure from
  these Rules necessary to avoid immediate danger.

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Rule 3 - Definitions

• (a) The word vessel
• (b) The term power-driven vessel
• (c) The term sailing vessel
• (d) The term vessel engaged in fishing
• (e) The word seaplane
• (f) The term vessel not under command
• (g) The term vessel restricted in her ability to
  maneuver

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Rule 3 - Definitions

• (h) The term vessel constrained by her draft
  (Int. only!)
• underway
• length and breadth
• (k) Vessels shall be deemed to be in sight of one
  another only when one can be observed visually
  from the other.
• restricted visibility

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Rule 3 Definitions (Inland)

• (I) Western Rivers
• (m) Great Lakes
• (n) Secretary
• (o) Inland Waters
• (p) Inland Rules or Rules
• (q) International Regulations

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INLAND Waters

• Rule 3 (o) Inland Waters means the navigable
  waters of the United States shoreward of the
  navigational demarcation lines dividing the high
  seas from harbors, rivers, and other inland
  waters of the United States and the waters of the
  Great Lakes on the United States side of the
  International Boundary
• Annex V lists the location of demarcation lines.

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San Francisco Entrance
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Monterey Harbor
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BCM 06-01-AUX

• Basic Parts, Symbols and Abbreviations on a
  Nautical Chart
• Lets have a look at Chart 1

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BCM 06-03-AUX

• Identify Local Landmarks Used in Piloting on a
  Nautical Chart

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BCM 06-04-AUX

• Plot a position using Latitude and Longitude

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BCM 06-05-AUX

• Plot a Magnetic Course on a Nautical Chart
• True
• Variation
• Magnetic
• Deviation
• Compass
• westerly errors

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BCM 06-06-AUX

• Measure Distance on a Nautical Chart
• Use Latitude scale.
• Use Scale on edge of chart.
• DO NOT use longitude scale!

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BCM 06-07-AUX

• Compute Time, Speed, and Distance
• D ST/60
• D distance in NM
• S speed in knots
• T time in minutes