Scout Boats 145, Owner'S Manual

Page: 62 / 112

Do not trim the engine out too far or the boat may begin to
“porpoise” (bounce up and down). Porpoising reduces control
and visibility.
To use power trim effectively, always start with the engine trimmed in. As
the boat planes, increase the angle out. Experience is the best teacher for
understanding proper trim.
TRIM TABS
Two trim tabs, located at the outside of the transom and even with the boat
bottom, help to correct the attitude and control of the boat. Water is
deflected and redirected as the tri tabs are raised and lowered. This change
in waterflow creates upward pressure under the tabs, and raises the stern.
When the stern raises, the bow is lowered. Likewise, lowering the port tab
will cause the port stern to raise, making the starboard 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.
PORT TAB LOWERS
PORT STERN RISES
STARBOARD BOW LOWERS
STARBOARD TAB LOWERS
STARBOARD STERN RISES
PORT BOW LOWERS
240-009
!
WARNING
Scout Boats
4-10
Chapter 4
Scout Boats Section 4.qxd:Scout Boats Section 4.qxd 5/11/07 5:39 AM Page 10