Specifications

on the Piccoboard.
If you plan to use the idle-up mode, you will need to set the revo mix curves for both normal
and idle-up modes.
13.5.5. Gyro setup - fixed pitch tail rotor
Heading Hold Gyro setup:
First, if you are using a heading hold gyro (such as the GY240 or GY401) you must make sure
your transmitter REVO MIXING option is disabled, because this option is only for non-heading
hold gyros.
If you are using a Piccoboard with a heading hold module, you do not need to trim the heli-
copter properly without the heading hold module installed (e.g. as a yaw rate gyro). Just install
the heading hold module and it should work properly as a heading hold gyro. You may need to
adjust the gain however.
13.5.5.1. GY240 setup
There are three controls which require setup on the GY240.
13.5.5.1.1. Setting AVCS
Set to ON. AVCS is Futaba's name for "heading hold" and you want this enabled.
13.5.5.1.2. Setting DIR
1. Disconnect the heli motor and position the heli so the nose is pointing towards you and the
tail is facing away from you.
2. Turn on the transmitter.
3. Plug in the heli battery.
4. Wait for the gyro to initialize.
5. Hold the heli firmly with the tail pointed away from you and arm the tail ESC by holding full
left rudder on the transmitter.
The tail motor should start. Rotate the heli left and right by about 30 degrees. If the tail
motor is pushing against the direction of rotation, then this is correct.
6. If the tail motor is pushing in the same direction as the rotation, this is incorrect, and you
will need to toggle the DIR switch to fix the problem.
13.5.5.1.3. Setting GAIN
Set this to 50% to start. It can be decreased later if the tail wags too much, or increased if the
tail wanders too much.
13.5.5.1.4. GY401 setup
There are five controls on the gyro and one on the transmitter which require setup on the
GY401.
Helicopter and Transmitter Setup
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