QuickWorldWide Big Bertha 69, Instruction Manual

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front of the blades in the direction of travel, clockwise if you look at the helicopter from
above, see picture 4. Your radio manual will be needed during this set up.
First, set your radio so that all travel values are at 100%. If you have a radio with Swash
Mixing set, ser those values to 50% (Aileron, Elevator, and Pitch.) Then use servo
reversing so that all servos are moving in the right direction. If Pitch operates reversed,
change the value in the Swash Mixing from + to -.
Step 1: First set your radio up so that all servos are moving in the right direction and
adjust all travel values to 100%. If you have a radio with Swash mixing values set those
to 50% (Pitch, Aileron and Elevator).
Now center both radio sticks (including “throttle”) and center all trim and sub-trim values.
When this is done turn your receiver pack on. Now mount the servo arms at a 90
o
angle
towards the linkage rod. In our non push pull helis this will be horizontal. Use the
mounting position on the servo arm that will be closest to 90
o
, not all servos will line up
100% correct. If they are visible off from the 90
o
position the use the sub-trim function in
your radio for fine tuning, do not use regular trim for this, see picture 1.
Now you have a good start and the rest of the setup will become easier.
Step 2: Connecting the Swashplate at the right distance. This is done by moving your
Pitch (throttle) stick all the way down, see picture 2. When the servos are in this position
adjust the length of the linkage rods so the Swashplate is located towards the bottom,
but still leaves enough room for left/right (aileron) and front/back (elevator) travel. During
such travel, portions of the Swashplate will move below the Swashplate position
archived during Pitch full down radio stick position. So make sure you leave enough
room for this extra travel, see picture 2 for recommended height. Also make sure that all
3 linkage rods between the servo arms and the Swashplate are the same, so the
Swashplate is level. It should not tilt in any direction; unless your right radio stick is
moved. If it lilts, and all linage rods are the same length, then go back to step one and
make sure your three servo arms have the same neutral position (horizontal on non
push pull helis).
Picture 1, Swash center Picture 2, Swash Down
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