Garmin GNC 420W Pilots Guide - Page 37

SECTION 3 NAV PAGES NOTE: The GNC 420 always navigates TO a waypoint unless the OBS switch is set (preventing automatic waypoint sequencing), or the aircraft has passed the last waypoint in the flight plan. Directly below the CDI appears the active leg of the flight plan, or the direct-to destination when using the Direct-to Key. This automatically sequences to the next leg of the flight plan as the aircraft reaches each interim waypoint. If no flight plan or direct-to destination has been selected, the destination field remains blank. The symbols in Table 3-2 are used on the Default NAV Page (directly below the CDI), to depict the 'active leg' of a flight plan or direct to. Symbol Description Direct-to a Waypoint Course to a Waypoint, or Desired Course between Two Waypoints Procedure Turn Procedure Turn Vectors-to-Final DME Arc to the Left DME Arc to the Right Left-hand Holding Pattern Right-hand Holding Pattern Table 3-2 NAV Page Symbols Selecting Desired On-Screen Data At the bottom of the Default NAV Page there are six user-definable fields which display the data needed as the flight progresses (Figure 3-3). By default these fields display: distance to destination (DIS), desired track (DTK), bearing to destination (BRG), ground speed (GS), ground track (TRK) and estimated time enroute (ETE). However, each of these fields can be customized to display a different data item. Available data items include: • Bearing to destination (BRG) • Course to steer (CTS) • Cross track error (XTK) • Desired track (DTK) • Distance to destination (DIS) • Enroute safe altitude (ESA) • Estimated time of arrival (ETA) • Estimate time enroute (ETE) • Fuel flow (FLOW) (when configured) • Ground speed (GS) • Ground track (TRK) • Minimum safe altitude (MSA) • Track angle error (TKE) • Vertical speed required (VSR) If no flight plan or direct-to destination has been selected, only speed, track, altitude, and minimum safe altitude data may be displayed. All other data types appear as blank lines on the Default NAV Page until a destination is selected. 190-00140-20 Rev. K GNC 420(A) Pilot's Guide and Reference 3-3