Trim Tab Principles Of Operation - Dometic Optimus Adaptive Trim Tab System Operating Manual

Optimus Adaptive Trim Tab System | Adaptive Trim Tab System
3.2 Controller operating and display elements
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Trim tab principles of operation

Trim tabs are plates, installed in pairs, used to control the pitch and roll of a boat
by directing water as it flows past the transom. They work by harnessing the
hydrodynamic forces exerted by moving water, so the boat must be in motion
for the tabs to have an effect.
WITH TRIM TABS IN USE
When a tab is lowered, the directed water flow will exert an upward force at the stern
of the boat. If both tabs are lowered at the same time the upward force at the stern
will force the bow down (pitch control). If only one tab is lowered it will force the bow
down on the opposite side, causing the boat to roll (roll control). The combination
of pitch and roll is the boat's attitude.
By adjusting the boat's attitude, the boat operator can get on plane faster, stay on
plane at lower speeds, increase top speed, correct a small list, improve ride quality
and visibility, reduce porpoising, and improve fuel economy.
EN
Description
Favorite button
Port tab position indicator
Control dial
Bow down button
System status indicator
Starboard tab position indicator
Home button
Bow up button
WITHOUT TRIM TABS
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