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High Performance Trim Tabs for Inflatable Boats (Roll-ups or RIBs)
  
Click on Videos to View High and Low Planing Speeds (click gear icon to select better viewing resolution)
 The
speed and weight carrying capacity of a
planing hull is directly related to it's
planing surface area and driving
power. Unlike small trim tabs, Lifters
add more that 5 times the planing area, or a
substantial 4.2 sq. ft. (12.5" x 24" x 2) of
additional hull planing surface as shown on
the right. At low planing speeds the
additional surface area at the stern creates
more than a proportional amount of added
lift by pushing water down, opposed to the
forward "V" section which pushes water to
the sides. The additional lift far aft
of the center of weight (boat, crew and
motor) lifts the stern and lowers the bow
for more hull planing surface area and
upward lift rather than backward drag.
Lifters also generate less drag and more
lift then trim tabs by having a lower angle
of deflection or attack and more surface
area further aft. At high planing
speeds when less surface area is desired
because of higher viscous skin drag, the
ventilation slots at the front of the
Lifters suck air into the mini step which
decreases the planing surface area and drag.
This technology is similar to the latest
side ventilated stepped
hull technology used on race and
recreational boats, but more importantly,
Lifters dramatically increase the
performance and comfort for fishing,
hunting, scuba diving, tending, towing,
rescue and other boating activities.
Specifications & Purchasing Self trimming with active-angle suspentionTM. For all inflatable boats with flat or uncontoured transoms and within the following size range not having a Futura hull.
*Lifters
(SB1) quickly attach and detach from
mounting brackets which are
permanently screwed onto the transom
and are constructed of heavy duty materials which can withstand over 800 lbs of vertical pressure while absorbing shock loads for a smooth ride.
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