L-2
Another useful dimension to know is the height of your boat from the water under a light load
condition. Using this height can prevent damage to your t-top or antennas. This height can be
determined in the same manner as determining the draft of a boat.
3. PERFORMANCE
Boat speed is dependent on many factors. Listed below are factors that you can address to
improve the efficiency and performance of your boat.
ENGINE EFFICIENCY
It is necessary to follow the maintenance plan required by the Engine Manufacturer. A poorly
maintained engine will not be an efficient one. Engine efficiency is a major component of boat
performance. The Engine Manufacturer’s maintenance requirements are included in your
Owner’s Pack.
ATMOSPHERIC CONDITIONS
Atmospheric conditions also influence engine efficiency. An engine will not run as efficiently
when:
The air is warmer
The air is drier
The altitude is higher
Often it is necessary to change to another propeller size when the boat operates at a higher
attitude than the boat was originally fitted for to ensure that the engine operates at the
recommended RPM range.
PERSONAL EQUIPMENT AND ACCESSORIES
The total weight of the people and gear onboard has a direct effect on the performance of the
boat. More weight on a boat means less performance.
At times it is necessary to change to another propeller size when a significant accessory, a T-Top
for example, is added to the boat to ensure the engine operates at the recommended RPM range.
MARINE GROWTH
Maintaining a hull bottom free of marine growth (algae and barnacles) will have a positive affect
on the performance of your boat and fuel efficiency.
BILGE WATER
Keeping your bilge areas dry will also maintain boat performance and fuel efficiency. It requires
little water to add significant weight to your boat.
PROPELLORS
A nicked or bent propeller will cause a loss of performance of your boat as well as create
vibrations excessive enough to damage your engines or boat.
If your propeller or underwater gear has been damaged operate the boat only at the lowest speed
possible yet maintain the ability to steer the boat.
