When pushed long, it switches the setting display to hPa (and back) (hint: you can do InHGhPa conversion easily with this) When the BARO button is pushed, enter desired atmospheric pressure using the rotary dial/knob.

The BARO button sets the atmospheric pressure.

Press the ARM button that is enable ARM mode.

Set your desired vertical speed using UP and DN button.

Check that the display is showing altitude and set your desired altitude, using the rotary knob.Input the current atmospheric pressure using the BARO button and rotary knob.The ARM button enables altitude preselect by the rotary knob using procedure below, pushing it again disables altitude preselect.In altitude hold mode the UP and DN buttons change the altitude by 20 feet per press. Use the ALT button to toggle between vertical speed (VS) and altitude hold (ALT) modes.

This mode is like APR mode except that the direction is away from the localizer (LOC) and that glide slope (GS) is not used.

The REV button enables the back course mode having the autopilot flying away from the runway.

This mode is recommended for instrument approach.

Toggle other mode and approach (APR) mode when APR button pushed and following marker beacon, VOR, GPS and ILS (localizer and glide slope) for automatic approach.

That is one of the Heading modes in KAP140 that direction when heading bug OBS operated.

Use NAV button to toggle between navigation mode (NAV) and wings level (ROL) mode.

In heading select mode the autopilot will try to maintain the heading selected by the heading bug on the directional gyro.

With the autopilot active you can use the HDG button to toggle between wings level (ROL) and heading select (HDG) modes.

Use the UP and DN buttons to set the desired vertical speed. The autopilot will also try to maintain the vertical speed at activation. The autopilot will try to keep the wings level by keeping the turn rate at zero.

To activate the autopilot in wings level (ROL) and vertical speed (VS) modes press the AP button.

It is commonly wired to an electrical avionics bus and secured by a dedicated breaker if it stays dark, check power, avionics bus switches and the breaker. Normally the autopilot boots as soon as the electrical system has power. 4.7 Flying opposite direction of VOR or ILS (REV mode).4.3 Climb to Altitude, then hold it (intercept altitude).4.2 After Takeoff: Hold heading, continue climbing.

Cessna 172 G1000 Fs2004 Full