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INSTALLATION
MOUNTING POSITION
Important is an orientation exactly aligned to the level of the main rotor in all 3 axis, i.e. the assembly surface must be orthogonal or parallel to the rotor shaft.
Contrary to normal tail gyros, this is particularly important to ensure that the head stabilisation maintains constant attitude even during pirouettes. During static
manoeuvres, the electronic unit may ignore an inclination in the mounting angle, but not during pirouettes. The helicopter would „wobble“.
All four orientation directions are possible with 3X and 3SX (see PC software). As an alternative, the FBL system can also be fi tted upside down, or on a left or right
vertical side. After changing the orientation, this must be reprogrammed to the new orientation!
AVOIDING VIBRATIONS
The mounting surface must be sturdy and vibrate to the least possible extent. It must not give way elastically. In case of vertical mounting to a chassis wall, choose
a location close to a screw joint. The closer it is fi tted to the rotor shaft, the less are vibrations, and the more precise is guidance during very fast turning manoeuv-
res. Avoid tail booms containing transmission shafts, since they may vibrate to a huge extent. In case of internal combustion engines, it is particularly important to
optimally observe this issue because of invisible vibrations. If the housing should tangibly or visibly vibrate extremely while the engine is running, we recommend
choosing a different installation position that is protected better against vibrations.
AVOID HEAT
Keep distance from exhaust tubes etc. Using the system inside a fuselage, make sure to supply fresh air. In general, any gyro system is affected by temperature
changes. We took care about this in all possible technical ways. Anyway, this needs special notice and care.
USE THE SUPPLIED ADHESIVE FOAM TAPE
Use the thin adhesive tape for acro / 3D models, as well as in case of vertical mounting. For scale models or models with an internal combustion engine, we
recommend to fi rst use the included thick (softer) tape. Before sticking on the tape, remove any traces of oil or dirt so the FBL system cannot come loose (this
would result in the loss of control!).
Do not additionally lash the housing as this would restrict the damping effect of the foam. For the same reason, do not tightly lash the connecting cables (servos
and receiver) and do not lay them in a straight line, but in a bend leading to the FBL system.
EARTHING THE TAIL BOOM
Make absolutely sure that there is an electrically conductive connection between the tailboom, engine housing and chassis. If necessary establish an equipoten-
tial bonding connection. Especially a belt drive in the tail boom can act as a „Van de Graaff generator“ and its sparks can penetrate into receivers and servos and
destroy them.
Caution: Carbon is also conductive!
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QUICK INTRODUCTION
