VAL Avionics NAV 2000 Guia de Instalação descarregar pdf (Página 213)

Autopilot Servo Installation, Configuration, and Calibration

SkyView System Installation Guide - Revision R 10-19

1. Return to the Main Menu.

2. Center the aircraft controls.

3. Enter the Autopilot Menu (MAIN MENU > AUTOPILOT).

4. Press the LEVEL button to engage the autopilot.

Now, take the controls and override the servo by moving to either roll left or roll right. Ensure

that you are comfortable with the amount of force it takes to override the servo. If you are not,

decrease the roll servo torque value by 10% and repeat the test.

Pitch Axis Configuration

Pitch Axis Torque

The pitch axis torque parameter specifies how much torque the pitch servo will exert before

slipping. Servo slip is indicated by the word SLIP in black letters in a yellow box on the Top Bar

for the pitch axis as shown in Figure 68.

Figure 68–Example Pitch Axis Servo Slip Warning

Torque must be set high enough to prevent any slip due to air loads, but low enough that the

pilot can override the autopilot should the need arise. If the servo slips continuously, the

autopilot cannot fly the aircraft. Torque is specified in percent (%) of maximum the servo is

capable of exerting. The minimum is 10%, the maximum is 100%, and the default value is 100%.

If you can override the servo at 100% torque, use this default value.

To test pitch axis servo override force:

1. Return to the Main Menu.

2. Center the aircraft controls.

3. Enter the Autopilot Menu (MAIN MENU > AUTOPILOT).

4. Press the LEVEL button to engage the autopilot.

Now, take the controls and override the servo by moving to either pitch up or pitch down.

Ensure that you are comfortable with the amount of force it takes to override the servo. If you

are not, decrease the pitch servo torque value by 10% and repeat the test.

Default Climb Vertical Speed

When using simplified autopilot controls, the default climb vertical speed parameter sets the

initial vertical speed the autopilot will command for climbs when an altitude change is

requested. You may also control the climb vertical speed after a climb is in progress with the

vertical speed bug. If you set this parameter above a vertical speed the aircraft can achieve, the

autopilot will run into the airspeed limiter in a climb.

When using expert autopilot controls, the Default Climb Vertical Speed is only used when NOSE

UP is pressed while ALT HOLD mode is already engaged. This activates VS mode at the Default

Climb Vertical Speed.

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VAL Avionics NAV 2000 Guia de Instalação Página 213