Garmin GNC 420W Pilots Guide - Page 63

SECTION 4 DIRECT-TO NAVIGATION SECTION 4: DIRECT-TO NAVIGATION 4.1 Overview The GNC 420's direct-to function provides a quick method of setting a course to a destination waypoint. Once a direct-to is activated, the GNC 420 establishes a point-to-point course line (great circle) from the present position to the selected direct-to destination. Navigation data on the various NAV pages provides steering guidance until the direct-to is cancelled or replaced by a new destination. Selecting a direct-to destination: 1) Press the Direct-to Key. The Select Direct-to Waypoint Page appears (Figure 4-1), with the waypoint identifier field highlighted. Figure 4-2 Waypoint Identifier Field Selected 3) Press the ENT Key to confirm the selected waypoint, and press the ENT Key again to activate the direct-to function (Figure 4-3). Figure 4-1 Select Direct-to Waypoint Page 2) Use the small and large right knobs to enter the identifier of the desired destination waypoint (Figure 4-2). Figure 4-3 'Activate?' Field Highlighted When off course while navigating to a waypoint, the direct-to function may also be used to re-center the CDI (HSI) needle and proceed to the same waypoint. Re-centering the CDI (HSI) needle to the same destination waypoint: Press the Direct-to Key, followed by the ENT Key twice. NOTE: When navigating an approach with the missed approach point (MAP) as the current destination, re-centering the CDI (HSI) needle with the Direct-to Key cancels the approach. 190-00140-20 Rev. K GNC 420(A) Pilot's Guide and Reference 4-1