Futaba FX-40 - Manual (Page 118)

118 <Model Menu (Helicopter Functions)>
PIT to Needle mixing
This mixing is used when the engine is equipped
with needle control or other fuel-air mixture
adjustment. A needle curve can be set.
An acceleration function which temporarily
increases needle operation at throttle stick
acceleration/deceleration operation can be set.
The rise characteristic of the needle servo at
acceleration and deceleration operation can be
adjusted.
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