45
Note: It is important that the weight(s) on each side of the flybar be positioned at a distance equal
from the head/main shaft in order to prevent imbalance that could lead to vibration in the rotor
head.
Dampening of the rotor head (main rotor blades) can also be adjusted in order to fine-tune the cyclic
response of your model. In general, stiffer dampening will result in quicker cyclic response. The
dampening of your Blade CP+ has been set to provide a good balance of cyclic response and stability
right out of the box, and we suggest that you make your first flights with this amount of dampening
before making any changes.
If, after the first few flights, you would prefer to have even quicker and more aggressive cyclic
response, you can stiffen the rotor head dampening by adding shims between the O-ring and step
washer on each side of the center hub (See the “Exploded View” drawing and parts listing on pages
64–65 for reference). Head Dampening Shims are available separately in packs of eight (EFLH1144),
however, you should install only one shim per side at a time before making each subsequent test flight,
until you find the dampening at which you prefer the cyclic response (and stability) most.
Note: You must always install an equal number of shims on each side of the center hub.
Note: If you install too many shims, and the dampening becomes too stiff, the helicopter can
wobble and shake in flight. Take care when making testing flights after adding shims to prevent
crashing the model as a result of a wobble or shake. Typically, we find that using 1–2 shims per
side with the stock 370 brushed main motor power system works well. More shims per side can
cause the wobble and shake. If running a power system that is capable of producing higher rotor
head speeds, like the optional 370 brushless power system, you can sometimes add even more
shims before encountering the wobble and shake. Again, exercise extreme care when test flying the
model after adding shims.
In stock form, the Blade CP+ is equipped with Hiller-only mixing. This means that all cyclic inputs are
directly output from the swashplate to the flybar paddle control frame. As a result, all cyclic inputs
are fed directly to the flybar paddles, resulting in cyclic control response. However, because only the
paddles are receiving the cyclic inputs from the swashplate, there is a limit to the amount of cyclic
control response possible.
If you’re interested in even quicker and more aggressive cyclic response, install the optional Bell Mixer
Upgrade Kit (EFLH1170). This kit includes all of the parts required to add Bell mixing to the rotor head
of your Blade CP+ in just a few minutes time. Bell mixing allows cyclic inputs to be fed to the main rotor
blades. The end result is Bell-Hiller mixing, which means that both the main rotor blades and flybar
paddles are being fed cyclic inputs directly from the swashplate. This results in a significant increase in
cyclic control response, allowing you to perform even the most aggressive aerobatic maneuvers.
Summary of Contents for Blade CP
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