Accumulated total distance, total flight time, Horizontal navigation gain setting, Vertical navigation gain settings – Trio Avionics Pro Pilot User Manual

Page 59: Vertical navigation servo deadband

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Trio Pro Pilot Manual 3.8

59

The flight time counter measures actual flight time when the airspeed exceeds approximately 45 knots,
as measured by the GPS.

The flight time or distance may be zeroed using the procedure below.

1. To enter the FL DIST, FL TIME selection, perform the following steps:
2. Enter

the

PREFERENCES SETTINGS menus as detailed previously and select the FL DIST, FL

TIME menu.

3. Press and release the H MODE button. The arrow

will be placed at the FL DIST setting value. To zero
this value, press and release the encoder knob.

4. Press and release the H MODE button. The arrow

will be placed at the FL TIME setting value. To zero this value, press and release the encoder
knob.

5. Press and release the H MODE to exit this function.

The FL DIST, FL TIME procedure is complete and the encoder can now be used to select another menu
screen.

Accumulated Total Distance, Total Flight Time

This display shows the total accumulated flight time and total
accumulated flight distance (TOT DIS, TOT TIME) in nautical
miles. It is informational only and cannot be reset. The
values are saved once each minute during flight in nonvolatile
memory.

Horizontal Navigation Gain Setting

 See Chapters 11 and 12

Vertical Navigation Gain Settings

 See Chapters 11 and 14

Vertical Navigation Servo Deadband

The V NAV servo deadband may be tailored to optimize vertical tracking performance for the particular
airplane. The factory setting of 6 is normally optimal for most applications. Lowering this number will
increase the tracking resolution of the system, while raising the number will have the opposite effect.

Care must be taken not to lower the deadband setting below a value which causes servo oscillation in-
flight or during ramp operation with the servo engaged.

To set the VNAV SERVO DB selection, perform the following steps:

1. Enter

the

PREFERENCES SETTINGS menu as

detailed previously and select the VNAV SERVO DB
menu.

2. Press and release the H MODE button. The arrow

will be placed at the setting field

3. Rotate the encoder to change the selection.
4. Press and release the H MODE button.

The VNAV SERVO DB procedure is complete and the encoder can now be used to select another menu
screen.

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