MacGregor Industries
26 HELI
To select an activation switch, highlight "INH" (or previous selection) at the top left of the screen by rotating the Scroll
Bar and click on it to bring up a browse box of the available choices. Rotate the Scroll Bar to highlight the required
activation method and click to exit the sub menu. To inhibit the Gyro Sense feature, select INH.
If the Rudder Dual Rate switch is used to activate the Gyro Gain, two gain choices are available (Pos.0 and Pos.1)and if the
Flight Modes (AUTO) are used to control the gain, three gain choices are available (Pos.0, Pos.1 and Pos.2).
To set a gain value, highlight the gain choice (Pos.0, Pos.1 or Pos.2) by rotating the Scroll Bar and click on it. The figure
is surrounded by a box to indicate that it is selected. Rotate the Scroll Bar to alter the setting between zero and 100% and
click the Scroll Bar to exit the sub menu. Use the CLR key to reset the gain to zero.
The "Pos.0" value is used when the selection switch is in the "0" position, the "Pos.1" value is used when the selection
switch is in the "1" position and the "Pos.2" value is used when the selection switch is in the "2" position (Flight Mode
only).
To select a Flight Mode gain, highlight the Flight Mode (NORM:, ST-1 etc.) by rotating the Scroll Bar and click on it to
bring up a browse box of the gain choices. Highlight the required gain (Pos.0, Pos.1 or Pos.2) and click to exit the sub
menu. The chosen gain is used for the selected Flight Mode. Please note that the ST-3 and ST-4 Flight Modes will
only appear if F.MODE EXTRA has been enabled in System Mode - DeviceSEL. Hold will only appear if THRO
Hold has been activated.
The figure to the right of [GYRO SENS] to the top left of the screen indicates the current Flight Mode switch position.
Press the LIST key to return to the Function Menu. Press the enter (ENT) key to return to the Information Display Screen.
Gyro Remote Gain: JR G490T and Other Heading Hold Gyros
The gain adjustment on the G490T gyro departs from the usual JR system and uses a single receiver channel to control both
the Heading Hold/Rate Mode selection and the gyro gain in each mode.
The gyro gain channel travel adjustment in the positive direction sets the gyro gain in Heading Hold mode with 0% travel
volume giving zero gyro gain and 100% travel volume giving 100% gyro gain. The travel volume and Heading Hold gyro
gains always correspond.
The gyro gain channel travel adjustment in the negative direction sets the gyro gain in the Rate Mode (normal) with 0%
travel volume giving zero gyro gain and 100% travel volume giving 100% gyro gain. The travel volume and gyro Rate Mode
(normal) gains always correspond.
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