Boat Crew NavigationBoat Crew Navigation

• This presentation is provided for This presentation is provided for shore-side training of Auxiliary Boat shore-side training of Auxiliary Boat Crew CandidatesCrew Candidates

• This presentation may be used within This presentation may be used within District 11 Northern RegionDistrict 11 Northern Region

Michael L. Maddox, Ph.D.Michael L. Maddox, Ph.D.Captain (MSC) USNR (Ret)Captain (MSC) USNR (Ret)District Commodore 1999-District Commodore 1999-20002000DSO-MT, FSO-MTDSO-MT, FSO-MT

Rule 20Rule 20– (a) Rules in this Part shall be complied (a) Rules in this Part shall be complied

with in all weathers.with in all weathers.– (b) The Rules concerning lights shall be (b) The Rules concerning lights shall be

complied with from sunset to sunrise, complied with from sunset to sunrise, and during such times and during such times no other lights no other lights shall be exhibitedshall be exhibited, except such lights as , except such lights as cannot be mistaken for the lights cannot be mistaken for the lights specifiedspecified in these Rules or do not impair in these Rules or do not impair their visibility or distinctive character, or their visibility or distinctive character, or interfere with the keeping of a proper interfere with the keeping of a proper look-outlook-out.†.†

BCM 04-03-AUXBCM 04-03-AUX• Identify Common Navigation Lights Identify Common Navigation Lights

Displayed by Ships and BoatsDisplayed by Ships and Boats

• Reference: COMDTINST M16672.2DReference: COMDTINST M16672.2D

BCM 04-03-AUXBCM 04-03-AUX• A sailing vessel shall exhibit:A sailing vessel shall exhibit:

– Sidelights and a sternlightSidelights and a sternlight

• A sailing vessel under 20 m may A sailing vessel under 20 m may display a combined lantern at the top display a combined lantern at the top of the mast.of the mast.

BCM 04-03-AUXBCM 04-03-AUX• A sailing vessel A sailing vessel

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

BCM 04-03-AUXBCM 04-03-AUX• A vessel under oars and a sailing A vessel under oars and a sailing

vessel under 7 m may display an all-vessel under 7 m may display an all-round white light in time to prevent round white light in time to prevent collision.collision.

BCM 04-03-AUXBCM 04-03-AUX

• A power-driven vessel shall exhibit:A power-driven vessel shall exhibit:– A masthead light forwardA masthead light forward– A second masthead light abaft of and A second masthead light abaft of and

higher than the forward one; except that higher than the forward one; except that a vessel less then 50 m shall not be a vessel less then 50 m shall not be obliged to but may do so.obliged to but may do so.

– Sidelights; andSidelights; and– a stern lighta stern light

Power Driven Vsl underway Power Driven Vsl underway >50m>50m

Power Driven Vsl underway Power Driven Vsl underway <50m<50m

BCM 04-03-AUXBCM 04-03-AUX• A power-driven vessel under 12 m A power-driven vessel under 12 m

may, in lieu of the lights described in may, in lieu of the lights described in Rule 23a, exhibit an all-round white Rule 23a, exhibit an all-round white light and side lights.light and side lights.

BCM 04-04-AUXBCM 04-04-AUX• One short blastOne short blast

– I intend to leave you on my port side.I intend to leave you on my port side.

• Two short blastsTwo short blasts– I intend to leave you on my starboard side.I intend to leave you on my starboard side.

• Three short blastsThree short blasts– I am operating astern propulsionI am operating astern propulsion

• Four short blastsFour short blasts– Pilot vessel identificationPilot vessel identification

• Five (or more) short blastsFive (or more) short blasts– Danger signalDanger signal

BCM 04-04-AUXBCM 04-04-AUX

• One prolonged blastOne prolonged blast– I am leaving a dock or berth.I am leaving a dock or berth.– I am power-driven, underway in fog.I am power-driven, underway in fog.– Approaching a blind bend in river.Approaching a blind bend in river.

• Two prolonged blastsTwo prolonged blasts– I am power-driven, underway, not I am power-driven, underway, not

making way in fog.making way in fog.

BCM 04-04-AUXBCM 04-04-AUX

• One prolonged and two short blastsOne prolonged and two short blasts– Sailing, towing, NUC vessel in fogSailing, towing, NUC vessel in fog– RAM, fishing in fog (both u/w and RAM, fishing in fog (both u/w and

anchored)anchored)

• One prolonged and three short blastsOne prolonged and three short blasts– Being towed in fog and manned.Being towed in fog and manned.

• Short, prolonged, shortShort, prolonged, short– Optional signal for vessel anchored or Optional signal for vessel anchored or

aground in fog.aground in fog.

BCM 04-05-AUXBCM 04-05-AUX• Distress SignalsDistress Signals

– A high intensity A high intensity flashing white light flashing white light at regular intervals at regular intervals 50-70/minute50-70/minute

Rule 2 – ResponsibilityRule 2 – Responsibility

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

Rule 3 - DefinitionsRule 3 - Definitions• (a) The word “vessel” †(a) The word “vessel” †

• (b) The term “power-driven vessel” (b) The term “power-driven vessel”

• (c) The term “sailing vessel” (c) The term “sailing vessel”

• (d) The term “vessel engaged in fishing” (d) The term “vessel engaged in fishing”

• (e) The word “seaplane” (e) The word “seaplane”

• (f) The term “vessel not under (f) The term “vessel not under command” command”

• (g) The term “vessel restricted in her (g) The term “vessel restricted in her ability to maneuver” ability to maneuver”

Rule 3 - DefinitionsRule 3 - Definitions

• (h) The term “vessel constrained by (h) The term “vessel constrained by her draft” (Int. only!)†her draft” (Int. only!)†

• ““underway” underway”

• ““length” and “breadth” length” and “breadth”

• (k) Vessels shall be deemed to be in (k) Vessels shall be deemed to be in sight of one another only when one sight of one another only when one can be observed visually from the can be observed visually from the other.†other.†

• “ “restricted visibility” restricted visibility”

Rule 3 – Definitions (Inland)Rule 3 – Definitions (Inland)

• (I) “Western Rivers” (I) “Western Rivers”

• (m) “Great Lakes” (m) “Great Lakes”

• (n) “Secretary” (n) “Secretary”

• (o) “Inland Waters” (o) “Inland Waters”

• (p) “Inland Rules” or “Rules” (p) “Inland Rules” or “Rules”

• (q) “International Regulations” (q) “International Regulations”

INLAND WatersINLAND Waters• Rule 3 (o) “Inland Waters” means the Rule 3 (o) “Inland Waters” means the

navigable waters of the United States navigable waters of the United States shoreward of the navigational shoreward of the navigational demarcation lines dividing the high demarcation lines dividing the high seas from harbors, rivers, and other seas from harbors, rivers, and other inland waters of the United States inland waters of the United States and the waters of the Great Lakes on and the waters of the Great Lakes on the United States side of the the United States side of the International Boundary;†International Boundary;†– Annex V lists the location of Annex V lists the location of

demarcation lines.demarcation lines.

San Francisco EntranceSan Francisco Entrance

Monterey HarborMonterey Harbor

BCM 06-01-AUXBCM 06-01-AUX

• Basic Parts, Symbols and Basic Parts, Symbols and Abbreviations on a Nautical ChartAbbreviations on a Nautical Chart– Let’s have a look at Chart #1Let’s have a look at Chart #1

BCM 06-03-AUXBCM 06-03-AUX

• Identify Local Landmarks Used in Identify Local Landmarks Used in Piloting on a Nautical ChartPiloting on a Nautical Chart

BCM 06-04-AUXBCM 06-04-AUX

• Plot a position using Latitude and Plot a position using Latitude and LongitudeLongitude

BCM 06-05-AUXBCM 06-05-AUX

• Plot a Magnetic Course on a Nautical Plot a Magnetic Course on a Nautical ChartChart– TrueTrue– VariationVariation– MagneticMagnetic– DeviationDeviation– CompassCompass– + westerly errors+ westerly errors

BCM 06-06-AUXBCM 06-06-AUX

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

BCM 06-07-AUXBCM 06-07-AUX

• Compute Time, Speed, and DistanceCompute Time, Speed, and Distance– D = S*T/60D = S*T/60

•D = distance in NMD = distance in NM

•S = speed in knotsS = speed in knots

•T = time in minutesT = time in minutes