Garmin GTN 625 Pilot's Manual page 156

6.9
Foreword
RF legs associated with RNAV RNP 1.0 non-AR (Approval Required)
Getting
approaches are supported by the GTN in v6.00, or later, when approved by the
Started
installation.
Audio &
Xpdr Ctrl
• 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
Com/Nav
published as part of a procedure."
FPL • Flying the RF leg of an approach is similar to flying a DME arc approach.
All GTN annunciations and indications are identical whether flying DME
Direct-To
arcs or RF legs with the GTN.
• RF legs may have a larger or smaller radius than DME arcs.
Proc
• Unlike DME arcs, RF legs are not based on a VOR.
Wpt Info
• Refer to the aircraft AFMS for specific details regarding RF legs for a
specific aircraft.
Map
6.10
Traffic
With "Vectors-To-Final" (VTF) selected, the CDI needle remains off center
until you're established on the final approach course. With the approach
Terrain
activated, the Map page displays an extension of the final approach course in
magenta (remember, magenta is used to depict the active leg of the flight plan)
Weather
and "vtf" appears as part of the active leg on the Map page (as a reminder that
Nearest
the approach was activated with vectors-to-final).
Services/
NOTE: In software v5.13 and earlier, once VTF is activated all waypoints in
Music
the approach prior to the FAF are removed.
Utilities
NOTE: In software v6.00 and later, all waypoints along the final approach
course, including waypoints before the FAF, are included in the flight plan and
System
the final approach course to the FAF is activated.
Messages
Symbols
Appendix
Index
6-16
Radius-to-Fix (RF) Approaches
Vectors to Final
GTN 625/635/650 Pilot's Guide 190-01004-03 Rev. P