Page 9 - Arrow Shark 2020 RC Boats

Trim Tabs Adjustment Tips

Most of Arrow Shark 2020 RC Boat packages come with a set of scale trim tabs which is fully adjustable
for the different performance angles. Changing the angle of the trim tabs has a similar effect as prop
angle. The best approach though is to set your prop angle first, then adjust your tabs mainly to suit
varying water conditions.

If the water is calm, you can angle the tabs up a little so they are clear of the water and not causing any
drag so giving the fastest speed. In choppy water though, you are likely to want your boat to run with a
bit more hull in the water. This gives more stability and often a faster overall speed as the boat is running
more steadily and not "bouncing" across the chop. By angling the tabs down, you force the front of the
boat to ride lower and so keep more of the hull in the water for greater stability - but some loss of speed.

Arrow Shark scale trim tabs have a split plate, and its best to adjust one plate on one tab, then a
plate on the other tab so you can see that you're changing both tabs by the same amount. Then adjust the
other two plates to re align with the first ones you moved. You can adjust just one of the plates on a tab
for minor changes to the ride attitude.
The power and high revs of your engine may cause the boat to run with a slight list (ie leaning) to one
side. Slightly lowering one tab (or just one tab plate) on that side will help the boat run level.

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