IV
•
THE STEERING IS THE MOST IMPORTANT SYSTEM IN THE ENTIRE BOAT FROM A SAFETY
STANDPOINT. HAVE THIS SYSTEM INSPECTED AND MAINTAINED ON A QUARTERLY BASIS BY A
QUALIFIED SERVICE TECHNICIAN.
•
THE BOAT’S STEERING SYSTEM IS NOT SELF-CENTERING. PROPELLER TORQUE, TRIM
SETTING, WATER CONDITION AND BOAT SPEED AFFECTS THE STEERING. CONSTANT
ATTENTION TO THE STEERING SYSTEM IS REQUIRED FOR SAFE OPERATION.
BOARDING LADDERS
Your Cobalt is equipped with a boarding ladder. Never use the swim platform area
and/or the boarding ladder while the engine(s) is running. The propeller(s) is very sharp
and can cause bodily harm. Always make sure the boarding ladder is properly stowed
and there is no one in the area behind the boat before starting the engine.
B
ASIC
M
ANEUVERING
Wandering is a characteristic of all deep vee hulls at slow speed. There is no cure for
wandering, however, a very basic operational technique can be applied which will
minimize this characteristic. If the steering wheel is moved back and forth to
compensate for wandering, invariably, the situation will be magnified. If the steering
wheel remains in a centered position, the boat will wander back and forth slightly,
however, the overall course of the boat will be a straight one.
PROPELLERS
Nothing is more important to the proper performance of your boat than the condition of
the propeller(s). Even minor damage can adversely affect the boat’s performance.
Common symptoms of damage to propellers are a sudden drop in RPM, vibration or
sudden loss of speed.
A propeller is measured by two dimensions: 1) the diameter, and 2) the pitch.
The diameter is determined by measuring the distance from the center of the propeller to
the tip of one blade and multiplying that figure by two. Pitch is expressed in the number
of inches a prop will advance in a solid medium in one revolution.
Operational characteristics of your boat, including its speed, may
change due to several factors: atmospheric conditions; additions of
extra equipment and accessories or passengers; marine growth on
the bottom; and engine condition. Other factors include damage to
the prop(s), tides, water temperature and direction of wind. Some of
these factors are directly correctable by repair or maintenance.
Others are beyond human control.
INCORRECT PROPELLER APPLICATION CAN CAUSE ADVERSE HANDLING
CHARACTERISTICS. DO NOT CHANGE TYPE OR SIZE OF PROPELLER WITHOUT CONSULTING YOUR
COBALT DEALER!
PITCH
(ONE REVOLUTION)
DIAMETER
41
O
PERATING
I
NFORMATION
C
OBALT
B
OATS
- O
WNER
’
S
M
ANUAL
KC-1581
KC-1580
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