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3. LOCK Mode
The LOCK mode is also known as the ‘Attitude Lock mode’, ‘3D mode’ or ‘AVCS mode’. Different from
NORMAL mode, the gyro will perform a permanent correction for rotational movements on each axis
constantly. That is when you release the sticks the airplane will stop and lock its current position
immediately. This mode is well suited for practicing basic 3D maneuvers such as hovering or knife edge.
Since it can help you to lock the attitude of the airplane, it is also helpful for landing.
4. ANGLE Mode
(Forme r T rainer Mode)
The ANGLE mode, also known as the ‘Trainer mode’ or ‘Attitude mode’, will limit the maximum angle of
the airplane on both roll and pitch axes. Roll and loop are not allowed in this mode, the airplane will be
stabilized all the time, independent of any stick input. This prevents the airplane from being tilted into a
larger angle that may cause a danger. As soon as the sticks are released, the airplane will be brought
back to horizontal position automatically. You can use this mode as emergency rescue, or in other
applications, e.g., to have a training for new beginners or to use for FPV. The maximum allowed angle of
this mode can be specified via the configurator or programming card.
5. LEVEL Mode
The LEVEL mode is also known as the ‘Auto-Level mode’, ‘Auto-Balance mode’ or ‘Horizon mode’. When
operating in this mode, the airplane will be brought to horizontal position automatically when releasing
the sticks. Different from the ANGLE mode, there is no maximum angle limitation in this mode and the
airplane will be stabilized only when there is no specific control input from aileron and elevator sticks.
This mode can be used if the pilot becomes disoriented and would like to save the airplane from crashing.
6. HOVER Mode
The HOVER mode, also known as the ‘Auto-Hover mode’, provides the same functionality as the LEVEL
mode. The only difference is that when you release the sticks, the airplane will be brought to vertical
position (nose up) and keeps hovering. This mode is designed to help you to learn hovering maneuver
and reduce the probability of crashing.
GAIN ADJUSTMENT
Basic Gain
A3 Mini provides separate adjustment of basic gain on aileron, elevator and rudder. Basic gain determines
the reaction strength of the gyro. In general, the higher the gain the harder the airplane will stop after
rotation and the more stable and precise the airplane will fly. But if the gain is too high the airplane will
tend to oscillate at high frequency on the corresponding axis. If too small, the operation and stability will
not be so good, and the airplane does not stop precisely and overshoots. The gyro will be deactivated
completely if you set the basic gain to 0%.
For the first flight test it is recommended to start with a lower basic gain setting (e.g., 30%) and switch
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