Aura Definitions

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This page is a work in progress. Additional terms will continue to be added in the future.

Control Modes

A Control Mode is a set of gyro settings that define how the gyro interprets data from the transmitter and the gyro's sensors. Settings can include things like gain and stick priority.

Flight Modes

A Flight Mode is a combination of Control Modes, Dual Rates and Expos that can be selected by a transmitter switch in flight.

Gain

A variable used to adjust how much correction the gyro system will apply for a given movement. The higher the value, the more correction is applied. A zero gain value is no gyro correction.

Bounceback Gain

A variable used to reduce control bounce upon sharp stick movements or quick, rotational stops. The higher the value, the more the Aura will try to eliminate this bounce. This does affect the Rate P-Gain and may allow you to run slightly higher Rate P-Gain with higher Bounceback Gain values.

Live Scaled Gain

Live Scaled Gain is a calculated value that shows the actual Rate P-Gain that is applied based on the calculations of different variables like current transmitter inputs, Master Gain settings and individual axis Gain Scaling settings. This is particularly useful when using Master Gain on the initial flights of a new aircraft or new Aura install. You can simply use the Master Gain on a knob or slider to find the optimum Rate P-Gain in flight, then land and copy the values shown in this field to the Rate P-Gain field. From there, you can disable master gain to avoid accidentally changing the gain in the future.

Master Gain

A way to proportionally adjust or scale the gain up or down via a transmitter channel.

Rate P-Gain

The most commonly used gain in Aura. Rate P-Gain is the amount of change to a servo (or output) for the aircraft's rotation rate (deg/sec). If the Rate P-Gain is very low, the gyro will have little effect on the servo or output. If the gain is too high, the gyro can cause oscillations at higher airspeeds or in windy conditions. It is recommended to start with low gain values and slowly scale them up using then Master Gain Scaling feature.

Output Scale

Also known as travel adjust, ATV, or servo end points in some radio systems, this variable sets the maximum travel of a servo output port from a stick command.

Stick Priority

Stick Priority is how the gain linearly decays as the Pilot's command (typically, the transmitter stick) moves away from center. If the command is greater than the Stick Priority setting, the gain is decayed to 0. See the Stick Priority FAQ for more information on Stick Priority.

Sub-Trim

Allows you to make a minor adjustment to the servo center position. This is typically used to achieve proper linkage geometry.