Garmin GPS 175 Pilot's Manual page 131

APPROACH
DME ARC
APPROACH
RADIUS-TO-FIX
(RF) APPROACH
VECTORS-
TO-FINAL
190-02207-02 Rev. 1
DESCRIPTION AND INSTRUCTIONS
The GPS/GNX guides approaches containing DME arcs (left
or right relative to the arc). To activate the DME arc leg
manually, the aircraft must be near the arc, as shown in the
shaded area below.
The GPS/GNX supports RF legs associated with RNAV RNP
1.0 non-AR (Approval Required) approaches.
AC 90-101A defines RF leg as "A constant radius circular
path, around a defined turn center, that starts and
terminates at a fix. An RF leg may be published as part of a
procedure." Refer to the aircraft AFMS for specific details
regarding RF legs for a specific aircraft.
• Annunciations and indications are identical for DME
arcs and RF legs.
Unlike DME arcs, RF legs are not based on a VOR.
•
RF legs may have a larger or smaller radius than DME
•
arcs.
Selecting Vectors-To-Final (VTF) keeps the CDI needle
off-center until the final approach course starts.
When the approach activates, the Map Page shows an
extension of the final approach course in magenta. As a
reminder that the approach was activated with
Vectors-to-Final, VTF appears as part of the active leg on
the Map page.
The flight plan and the final approach course includes all
destination waypoints along the final approach course,
including locations before the FAF.
GPS 175/GNX 375 Pilot's Guide
Navigation
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