Use the pad recommended by the FBL-Unit manufacturer. If you have vibrations it is better to find the source
than using a softer tape. All wiring to the FBL-Unit must be done without tension and not to stiff. If you use
some kind of cover to protect the wires, please remove it on the last 3-5cm to make sure that vibrations can’t
be carried to the unit – which will cause strange behaviour like unwanted movements of the helicopter.
Remove all kind of grease and oil from the radiotray and the bottom of the FBL-Unit with alcohol or something
similar.
Please place your FBL-Unit extremely carefully in your helicopter. It is important that the unit is in a perfect 90°
angle to all axes to get best performance. A wrong mounted unit can cause a wobble during piromanouvers.
FBL Setup Tips
Tip:
For easy measurement of the pitch angles during the
setup, please use something long and straight (like a
flybar or CF-Tube) and put it on the upper servomount
behind the servorods. With this trick you can easily use
the pitchgauge to check the collective and cyclic angles.
Tip:
All servo horns must be at 90° (horizontally). Try all
possible positions of the servo horn to get as close as
possible to 90° at neutral servo position. Keep all
swashplate linkages at exactly the same length. Level
the swashplate horizontally in all directions by using the
subtrim, therefore read the manual of your FBL-Unit and
follow the instructions!
Please read the manual for the current software
version of your FBL-Unit carefully and follow all
instructions. We can't give you any specific tips
because most brands of FBL-Units change their
software from time to time and your setup depends
on many other factors like used blades and servos.
Please check our website to find some setups from
our Teampilots.
A perfect CG (Center of Gravity) is very important to get a perfect flying model. The CG must be
exactly under the mainshaft. Adjust the CG by positioning the battery to the front or to the rear on
the battery tray. You can also change the position of the battery tray with the three mounting holes
in the side frames. The CG should be measured with all parts including the canopy.
Tip:
There are two methods to find out where the CG is. The first method is to hold the model under
the main blade grips and look if it tilts forwards or backwards.
You can also hold the model at the main blade grips and fixed main rotor blades with the main
shaft leveled horizontally. Look with the canopy facing to the right and then facing to the left
(due to the free wheel) if the nose or tail tilts down.
If the nose tilts down, you have to put the battery more to the rear, do the opposite when the tail
tilts downwards.
