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20 20 World Cat Glacier Bay Edition 2740 Owner’s Manual
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5.8 Handling Characteristics
World Cat Glacier Bay Edition catamarans have semi-displacement hulls. Semi-displacement hulls provide
superior handling characteristics, even at low speed, and an improved ride in rough water. Our proven
design provides a superior ride, excellent handling characteristics in a variety of conditions, and speed with
economy of operation. To help you experience the softest ride, study the following sections.
5.8.1 Turning Characteristics
Turning a catamaran is slightly different than cornering on a conventional vessel. Imagine the difference between
an automobile and a motorcycle: Automobiles take turns in a flatter, more stable manner similar to a catamaran
hull, while motorcycles pitch hard into a turn similar to a monohull. Do not underestimate a catamaran’s cornering
ability. Hard adjustments to the steering wheel can make a World Cat bite quickly and execute high-performance
turns. Experiment with the handling ability of your cat so you are prepared for any situation on the water.
5.8.2 Adverse Sea Conditions
Catamarans are designed to handle some of the roughest waters in the world, but that is no substitute
for common sense. As an operator, you are responsible for the safety of your passengers and vessel;
therefore, your trips should be limited by your level of experience. Planning and paying constant attention
to the weather and sea conditions is paramount. If you are forced to operate in dangerous seas you can be
confident that your World Cat, when operated properly, can handle them safely.
Here are a few tips on how to handle your boat in adverse sea conditions:
• When traveling into the wind, changing your direction a few degrees to allow one sponson
to settle before the other, can make the ride smoother and allow for increased speed.
• In a rough chop with short wave intervals, increasing your speed may allow the boat to skim
across the tops of each wave. This will result in a smoother ride.
• Steer to avoid larger swells and breaking waves.
• In a following sea, position your vessel on the back of a wave and match its speed to remain ahead
of the trough. Speed is paramount. Work the throttle to avoid going over the wave or being thrown
down the face of a following wave.
5.8.3 Cross-Clutching - Twin Engines
World Cat 2740 twin engines are mounted at a specific distance, based on the configuration of the boat,
allowing you to cross-clutch (one motor in forward while one in reverse).
To dock, reverse the boat into a slip: put the outside motor in reverse and turn to face aft. Keeping the wheel
straight, steer with the inside motor putting it in forward and reverse to guide you into the slip. Keep it
simple and slow.
5.8.4 Get the Boat on Plane
• Trim both engines down (the motors act as trim tabs forcing the bow down).
• Quickly increase speed to get the boat on plane then slow down to 3500 RPM's.
• Adjust trim up until the motors cavitate, then tap trim down.
• Feel / hear the motors and do not watch the trim gauges.
• A smooth ride is more important than having your engine RPM's synchronized.
5.8.5 Keep the Boat Level (if the seas change or people move on the boat)
Trim the High-Side-High. When one side of the bow is high compared to the horizon, simply trim the
high-side motor up. (If it cavitates then trim the low-side-low). Different models have different sensitivity to
trim (do not over-correct as this may cause the boat to pitch in flat calm water at high speeds)