Ab c, Trimming – Pro Boat PRB3350 User Manual
Page 5
Westward
Trimming
Control Centering
Before the first voyage, or in the event of an accident,
make sure the rudder and sails are centered.
1. Make sure the sails and rudder are centered (neutral)
when the transmitter controls and trims are centered.
2. When needed, manually adjust the length of the
control line between the winch in the boat and the
cleat (A) on each sail boom. Each line is tied off on
the cleat on each sail boom. Always adjust the
length of the line at the cleat, not on the winch
inside the boat.
Centering Controls after Voyages
1. If the model requires excessive transmitter trim (8 or
more clicks of trim per channel), return the transmitter
trim to zero and adjust the control lines on the boom
cleats (A) so that the rudder and sails are in the water
trimmed positions.
2. Adjust the stays (B) on the lines holding the mast
vertically in the boat. Move each stay carefully on
the line so there is no slack. The left and right mast
lines consist of one line put through a hole in a
fitting on the mast.
3. Check to make sure the main boom and front sail
boom are in line with each other. Adjust the length of
the line tied on the booms under the sails if the sails
are not centered with each other. Adjust the stay (C)
at the top of the front (jib) sail to raise the sail on the
mast. Tied control lines may need to be loosened at
the bottom of the sail so that you can tighten the
top of the sail.
Adjusting Sails
After you have centered the sails and the rudder, adjust
the sails for the most fun and safe sailing. Briefly sail
the boat to see how the sails need to be trimmed.
Tighten the stays (B and C) by lifting up on the lower end.
Loosen the stays by lifting then pushing down the upper
end of a stay. Loosen or tighten sail control lines by
coiling the control lines around the cleats (A) and tying
off the end of the line in the slots on the ends of a cleat.
The winch servo has more travel than your sails require
for safe and enjoyable sailing. Set the rigging so that the
lines are JUST taut when the sails are fully retracted and
the servo is at the end of its retraction travel.
NOTICE: Do not tighten the lines on the sail boom
cleats so that the servo tightens the line too much.
This may result in a broken line or other damage.
Tip: The DX2M transmitter included with your boat
has a control by the sail stick to change between
50/50 and 70/30 travel. Adjust as desired, but always
ensure you do tighten the line too much and damage
your boat. If you use a computerized transmitter
with your boat, servo travel may be adjusted more
than with the included transmitter. Refer to your
computerized transmitter manual for servo
adjustment instructions.
Take your time to prepare your sails for the conditions.
Tip: When there is little wind, tighten the sails so
they catch more wind. When there is more wind,
loosen the sails to allow them to flap and let
excess wind spill around the edges of the sails.
A
B
C
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EN