Regal 38 SAV 2019, Руководство пользователя

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Trim Tabs
If installed, trim tabs are
located on the lower hull
of the transom. Water is
deflected and redirected
as the trim tabs are raised
and lowered from the
starboard helm located
trim tab switch. This change in water flow creates
upper pressure under the tabs, and raises the stern.
When the stern rises the bow is lowered. Lowering
the port tab will cause the port stern to rise, making
the starboard bow lower. Lowering the starboard
tab will cause the starboard stern to rise, making
the port bow lower. The pressure originates from a
pump and valve system at the aft bilge.
When used with the engine power trim a fine
tuned ride can be achieved. The trim tabs will
compensate for uneven weight distribution, listing,
water conditions, and other factors that cause
inefficient operation. Remember, that trim tabs are
trimming the hull while power trim is trimming the
outboard(s) drives.
Obtaining A Trimmed Position
Your vessel will reach a planing position at a specific
speed. This speed is determined by bottom design,
weight distribution, water conditions, and on board
equipment. As the throttle is advanced the stern
squats and the bow rises initially. The trim tabs allow
your boat to plane at a slower speed than natural
conditions allow.
Note a stern drive example above.
In short bursts both trim tab rocker switches are
pushed simultaneously in the “bow down” position
which causes the trim tabs to move down. As the
boat breaks over the bow high attitude the boat
speed accelerates and visibility increases.
If the boat is over-trimmed, it will plow the bow and
the boat will lose maneuverability. If this occurs,
simply short burst the “bow up” trim tab rocker
switches simultaneously.
In the “learning curve” process, press the tab
switches in half second bursts. You will notice a
slight delay from the time the switches are pushed
until the boat reacts depending on vessel speed.
You will know after awhile the optimum planing
angle and speed.