Leopard Catamarans 40 - 2-8.6 Dangerous Activity Area

44 | 2-8 Carbon Monoxide
2-8.6 DANGEROUS ACTIVITY AREA
BACK DRAFTING(stationwagoneffect)
Backdraftingiscausedbyairmovement
overoraroundaboatcreatingalow
pressureorsuctionareaaroundthestern
thatcanincreaseCOlevelontheboat.
Backdraftingcanbeaffectedbyrelative
winddirection,boatspeedandboattrim
angle.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.
Otherfactorsduringboatoperationwhich
mayaffectcarbonmonoxideconcentration
include:
• Addingorremovingcanvasmayraise
or lower CO levels.
• Openingandclosingports,hatches
and windows may raise or lower CO
levelsonboardaboat.Whenairow
ismovingforwardinsidetheboat,CO
may be entering the boat.
• Operating a boat at slow speeds with
afollowingwindshouldbeavoided.
Considerchangingdirection,
adjustingspeed,orboth.
• Beawarethatcockpitanddeckdrains
canbeasourceofCOingressinto
boats,especiallyboatswithcockpitor
decksenclosedwithcanvasor
permanentboatstructures.
Air conditioning–lackofsystem
maintenancemaycauseCOtobebrought
intotheair-conditionedspacesbytheair
conditioner.Besurethattheairhandling
ductsandplenumsaresealedfromthe
engineroom(s).
Ventilation of Occupied Spaces –
Occupiedspacesneedtobeventilatedto
introducefreshairintospaces.Ventilation
methods(e.g.windows,hatches,doors
andblowers)usedtoaccomplishthismay,
undercertainconditions,bringhazardous
levelsofCOintotheoccupiedspaces.Be
awareofallprevailingconditionswhen
usingtheseventilationmethods.
WARNING
PortableGeneratorSets–Donotusethis
equipmentonboats.Gasolinepowered
portablegeneratorsetsproduceCO.
Thesesetsdischargetheirexhaust
productsinlocationswhichcanleadtoan
increaseintheaccumulationofcarbon
monoxideintheoccupiedspace.
CAUTION
It is of vital importance that the owner /
skipper is familiar with the layout of the
vessel and that crew and passengers
are aware of the location of all safety
equipment.
Thefollowingdrawingsareprovidedfor
reference
B1-FDC-005 Sail&RiggingPlan
B1TCF-011 ShippingDetail
B1TCF-012 Hatch&PortlightArr.
B1TCF-014 WorkingDeck