Flight Mode Configuration; Rate Mode; Att Assist Std; Att Assist All - PowerBox Systems Mercury SRS Instruction Manual

4.5. Flight mode configuration

The next stage is to define the gyro function required for each flight mode.
This setting defines the task which the iGyro is to carry out in flight modes
1, 2 and 3. Note that in flight mode 1 the Assistant only permits the
functions OFF or RATE MODE. The following options are available:
- OFF:
The iGyro is disabled.

- RATE MODE:

The iGyro operates in Normal mode on all control surfaces. The gyro
simply compensates for gusts of wind.

- ATT ASSIST STD:

Since the English terms "Heading mode" and "Hold mode" are not quite
applicable to the way the iGyro works, we have decided to adopt the
name "Attitude Assist Mode" for its unique control characteristics. If
the Attitude Assist Standard option is selected, the iGyro maintains
the model's attitude, as last commanded by the pilot, around the roll and
pitch axes (aileron and elevator). At the same time the rudder operates
in Normal mode, so that turns can be flown in the usual manner. The
Attitude Assist Mode only operates at the neutral position of the sticks.
As soon as the pilot gives a command, the iGyro switches to Normal
mode. The result is 100% natural handling in the air. This function is
recommen ded for all models, and can be left active for take-off, flying
and landing. The control characteristics of the iGyro eliminate the need
to worry about stalling, which can occur with conventional gyro systems.

- ATT ASSIST ALL:

This setting is identical to the above option, except that attitude
maintenance is also active on rudder. This makes it easy to fly slow rolls,
as the rudder automatically maintains the correct attitude. However, this
flight mode option must not be used for normal flying, as the rudder
would then try to maintain heading through aileron turns, making the
model reluctant to turn.
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