Chaparral SSi 2013, Руководство владельца/оператора

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2013 Chaparral SSi Owner’s Manual
Chaparral Boats, Inc.
Nashville, GA
chaparralboats.com
5-11
After reaching plane, under certain load conditions, your boat could have
a tendency to bury its forward V-ed section. The boat will begin to plow
and lose speed. If the water is choppy the boat will yaw. A boat will spin
out if its bow is excessively buried. The only way to correct this situation
is to increase the angle and swing the drive unit outward.
If the drive unit is angled out too far, your loaded boat will be sluggish
in coming to plane. Once on plane, your boat will tend to porpoise. To
correct this motion, move the propeller inward to decrease the angle be-
tween the drive shaft and the transom.
WARNING:
Excessive trim decreases maneuverability,
changes steering characteristics, and may cause “porpoising”
(bow oscillates up and down) or “chine walking” (rocking side to
side). Use power trim with care.
Very often, the optimum drive unit angle setting for the highest speed
while carrying a light load will be just short of the porpoise point. Howev-
er, such a setting is unsuitable when you have a heavy load or are pulling
skiers. By reducing the drive angle, you will fi nd it easier to maneuver the
boat and to pull skiers to the surface.
Trim Tabs
Trim tabs are standard on some models and optional on others. Trim tabs
also help the operator trim the boat. Trim tabs are mounted on the port
and starboard transom below the water line. The operator can control
the trim tabs at the helm with rocker switches. (Figure 5.4) Pushing the
switch activates the electric system which moves its tab up or down.
If the trim tabs are angled down, they cut into the water as it passes under
the hull to force the stern up and the bow down (Figure 5.5). Trim tabs
also compensate for uneven loads in the boat by allowing the operator to
trim up one side of the boat or the other.
Figure 5.4 Trim Tab and Switch
and bow down.
Stern Bow
Tabs
Tabs extended, water passes
under hull, hits tabs and forces
stern up and bow down.
Figure 5.5 Trim Tab Operation