Owner`s manual

World Class Catamarans
2-6
BOATING TIPS
Experience is the best way to determine the handling characteristics of your catamaran.
Operating the boat in multiple sea conditions and under various loads will help you predict how
the boat will perform in any situation. World Cat provides the following recommendations
regarding the performance of your catamaran:
• Establish an RPM chart which details the speed and fuel consumption at various
RPM levels to achieve the most economical operation.
• Monitor fuel gauges to determine the amount of operating time remaining at a
given reading.
• Determine minimum speed for effective steering in close quarters.
• Determine the turning radius required at various speeds.
• Determine the rates of acceleration and deceleration with various load condi-
tions. Include the distance required to stop the boat at various speeds.
Use the information provided in section 6 of the Sportfish, Cruisers, Yachts Owner’s Manual
for more information on boat handling.
PERFORMANCE FACTORS
Proper setup and maintenance of the systems on your boat is important to ensuring proper
performance, but be aware they are not the only factors which affect it. Several things which
contribute to the level of performance of your catamaran can change between or during trips.
ENGINE EFFICIENCY
Without proper maintenance, your engine(s) will gradually lose power, resulting in a loss of
speed. Use the recommendations in the engine’s owners manual to schedule routine main-
tenance procedures and as a guide for the correct RPM range for your engines. Neglecting
to do so may result in loss of performance and an increased risk of failure.
PROPELLER CONDITION
The size and condition of your prop also plays a major role in the performance of your cat-
amaran. A damaged prop can result in lower speeds, sudden drops in RPM, increased fuel
consumption, and severe vibration while running. Improperly sized props can cause dam-
age to your engine as a result of exceeding the maximum or minimum RPM levels.
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.