World Cat 2011, Owner'S Manual

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2012 World Cat 290EC Owners Manual
Improperly sized props can cause damage to your engine as a result of exceeding the maximum or minimum RPM
levels.
5.11.3 Weather Conditions
Barometric pressure and humidity can affect the output of your engines. For example, on an extremely hot and humid
day, your engine can experience as much as a 10 percent loss in horsepower. Although you should monitor your
engines’ performance, be aware that the weather could be a major factor in your boats performance.
5.11.4 Load
Increased load can obviously affect performance, especially if the load is unbalanced. Passengers, gear, and fuel are all
examples of things which can affect your vessel. Fuel levels change through the day, and greatly affect the attitude of
your boat. When necessary, make adjustments to engine trim and load distribution to compensate for fuel usage.
5.11.5 Marine Growth
If you store your boat in the water or fail to clean it after each trip, the existence of marine growth can contribute to a
loss of performance. A decline in speed or increased fuel consumption can occur. Prevent this by applying a marine
growth inhibitor or by cleaning your boat thoroughly after each trip.
5.11.6 Bottom Paint
Bottom painting your catamaran will also change the performance. Although not significant, you can expect a drop in
speed between 1 and 5 miles per hour.
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