POOR VENTILATION
Under certain running or wind conditions, permanently enclosed cabins, canvas
enclosed cabins, or cockpits with insufficient ventilation may draw in carbon
monoxide. Install one or more carbon monoxide detectors in your boat.
Although the occurrence is rare, on a calm day, swimmers and passengers in
an open area of a stationary boat that contains, or is near, a running engine
may be exposed to a hazardous level of carbon monoxide.
1. Examples of poor ventilation while the boat is stationary:
a - Running the engine while the boat is moored in a confined space
b - Mooring close to another boat that has its engine operating
2. Examples of poor ventilation while the boat is moving:
a - Operating the boat with the trim angle of the bow too high
b - Operating the boat with no forward hatches open (station wagon effect)