J. The Effect of Boats Moored Along Side
2.. Excessive.or.unequally.distributed.weight.
A.boat.operator.should.be.aware.that.carbon.monox-
ide.is.emitted.from.any.boat’s.exhaust..The.operation,.
mooring,.and.anchoring.in.an.area.containing.other.
boats.may.be.in.an.atmosphere.containing.CO.not.of.
the.operator’s.making..An.operator.likewise.needs.to.
be.aware.of.the.effect.of.their.boat.on.other.boats.in.
the.area..Of.prime.concern.is.the.operation.of.an..
auxiliary.generator.where.boats.are.moored.along.
side.each.other..Be.aware.of.the.effect.your.exhaust.
may.have.on.other.boats.and.be.aware.that.the.
operation.of.other.boats’.equipment.may.affect.the.
carbon.monoxide.concentration.on.your.boat...
See.Figure.B7.
Figure B9: Inefficient trim angles
3. Canvas configurations – Under various conditio-
ns,.adding.or.removing.canvas.may.raise.or.lower.
CO.levels..See.Figures.B8,.B9.&.B11.
EXHAUST FUMES!
Hull exhaust from your boat can cause
excessive accumulation of poisonous carbon
monoxide gas within cockpit areas when using
protective weather coverings (while underway
or while stationary). Provide adequate ventila-
tion when the canvas top, side curtains and/or
back (aft) curtains are in their closed protective
positions.
Figure B7: The effect of boats moored along side
K. Backdrafting (Station Wagon Effect)
Backdrafting or the “station wagon effect” is caused .
by.air.movement.over.or.around.a.boat.creating.a.low.
pressure.area.or.suction.area.around.the.stern.that.
can.increase.CO.level.on.the.boat..Backdrafting.can.
be.affected.by.relative.wind.direction,.boat.speed,..
and boat trim angle. See Figure B8 Backdrafting – .
Airflows Over Boat and Behind Transom”.
4.. Opening.and.closing.ports,.hatches,.doors,.and.
windows.may.raise.or.lower.CO.levels.on.board..
a boat. When airflow is moving forward inside the
boat,.CO.may.be.entering.the.boat..See.Figures.
B10.and.B11.
Figure B10: Desired air flow through the boat
Figure B8: Backdrafting - Air flows over boat
and behind transom
Under.certain.speed.and.operating.conditions,.the.low.
pressure.area.may.form.in.other.regions.and.permit.
carbon.monoxide.to.enter.the.hull.through.openings.
that.are.not.on.the.back.of.the.boat..Boat.factors.
which.may.affect.CO.concentration:
Figure B11: The effect of canvas configurations
1
.. Intentional.or.unintentional.excessive.trim.angle.
causing.high.bow.angle..See.Figure.B9.
5.. Operating.a.boat.at.slow.speeds.with.a.following.
wind.should.be.avoided..Consider.changing.direc-
tion,.adjusting.speed,.or.both..See.Figure..
B12.
Boating Safety - Section B
Owner’s Manual Page
| Categories | Four Winns Manuals, Four Winns Vista Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Horizon 310 |
| Model Year | 2007, 2008 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx |
| Document File Type | |
| Publisher | fourwinns.com |
| Wikipedia's Page | Outboard Marine Corporation |
| Copyright | Attribution Non-commercial |
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