Trim Tabs-All Models; Obtaining A Trimmed Postition - Regal 3760 Owner's Manual

Trim Tabs-All Models

Trim tabs are installed on the hull lower transom area.
Water is deflected and redirected as the trim tabs are raised
and lowered from the dash switches. 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.
Using trim tabs in conjunction with the power trim 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 engine drive.
TRIM TAB
TRIM TAB DASH SWITCH

Obtaining A Trimmed Postition

Your Regal boat reaches a planing position at adesignataed
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.
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 overturned, it will plow the bow and the
boat will lose maneuverability. If this occurs, simply short
burst the "bow up" trim tab rocker switch 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.
When running in heavy seas press the "bow down" position
which will assist the vessel to cut through the waves. This
will produce a drier and more comfortable ride. In a
following sea especially with V-drives run the tabs in a fully
retracted angle for maximum rudder response.
Sometimes you can watch the bow spray or stern wake
and the rooster tail (mound of water produced by the
rudders or stern drives). In a bow up position the spray is
far aft to the hull, the wake is high and the rooster tail is
high.
20
Chapter 5
PORT ROCKER
STBD. ROCKER