Attitude Adjustment
or Trim Tab Switch
(All V-Series, including X-Series)
MasterCraft utilizes Lenco attitude adjustment
plate kits on several models. Dual plate kits are
available on the 280 and X-80 models; a single plate
kit is used on the 200, X-2, 215, X-15, 235, X-35,
245 and X-45, 255 and X-55. On the dual attitude
adjustment plate system, the plates operate inde-
pendently of each other to provide optimal perfor-
mance by redirecting water ow near the transom
of the boat. These plates have been designed to
improve the overall attitude of a boat. If used properly, the plates will
improve the ride, reduce drag, increase speed and improve the fuel
eciency of the boat.
The operation of the attitude adjustment plates is basic. The
plane or planes are mounted with the actuator(s) on the transom
of the boat. When the plate(s) is/are lowered, the water ow is redi-
rected, creating an upward force at the stern of the boat. When the
stern rises, the bow will lower.
Since these actuators are electromechanical, they provide an im-
mediate response at the touch of the switch. The switch adjustments
are based on the position of the bow. On the dual attitude adjustment
plate system, the right side of the switch controls the starboard plate
and the left side of the switch controls the port plate. On the single
plate system, there is only one switch control.
The system is set up this way to minimize the guesswork while un-
derway. Press DOWN to lower the bow. Press LEFT to roll the boat
to the left, and RIGHT to roll the boat to the right.
Since our models have dierent weights, lengths, speed and perfor-
mance, it will take some practice for the operator to understand how
your boat reacts with the attitude adjustment plates installed. The
plates will allow your boat to get on plane faster and continue plan-
ing at lower speeds. This will improve visibility and the overall safety of
your boat. When making adjustments with the attitude adjustment
plates, use short momentary taps of the switch. Continued practice
will help you become familiar with how the plates perform.
Special Conditions
Head Sea: Lower both plates by tapping slightly BOW DOWN
on both sides of a dual system, BOW DOWN on a single system.
This will bring the bow down while maintaining speed. This also al-
lows the hull of the boat to absorb the impact of the waves. This ad-
justment will result in a more ecient and smoother ride. Changes
should be made in small increments to ensure maintaining control
of the boat.
Following Sea: Make sure the plates are fully retracted by
pressing BOW UP on both sides of a dual system, and BOW UP on a
single system. This will bring the plate(s) up to a fully retracted posi-
tion, decreasing lift in the stern and allowing the bow to rise. If the
plate(s) is/are deployed, the bow may dig.
Windy Chop: To raise the windward side of the boat on dual sys-
tems, press BOW UP on that side. If this is not sucient press BOW
DOWN on the leeward side of the boat. Do not over-trim when at-
tempting this. This will allow the windward side of the boat to rise
and will minimize spray.
Shallow Water/Hole Shot: Lower both plates completely on a
dual system by pressing BOW DOWN on both sides (the single plate
on a single system). This provides lift in the stern of the boat and will
keep the bow down. As you throttle up and speed increases, raise
Sport
Enhancement
Controls
the tab(s) by pressing BOW UP on both sides of a dual system, and BOW UP
on the single system.
Uneven Load: When equipped with a dual system, if one side of the boat
is higher than the other while running, press BOW DOWN on the switch on
that side. This will lower the tab on the listing side (low side) to bring the
boat level.
Porpoising: To stop porpoising, press BOW DOWN on both sides of a
dual plate system, BOW DOWN on a single system. The plate(s) needs only
to be deployed slightly to correct this adverse situation.
While operating attitude adjustment plates use caution. Improper
use of plates can cause accidents, which may result in serious in-
jury or death. While the boat is underway do not move one plate
up or down significantly as this may cause listing. While at higher
speeds do not over-trim, as this will cause the bow to lower quickly,
resulting in a reduction of speed and may cause the boat to veer.
When in following seas or when running an inlet, the plates should be
fully retracted. This will allow for optimal performance. ELECTROME-
CHANICAL ACTUATORS PROVIDE AN INSTANT RESPONSE.
WHEN MAKING ADJUSTMENTS, USE SHORT MOMENTARY
TAPS OF THE SWITCH.
MasterCraft 2012 Owners Manual • Guide to Individual Models • Page 2-62
To Next Page
Loading...
Need help?
General
