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CHAPTER SIX
T-34C INSTRUMENTS
628.
STRAIGHT­IN APPROACH
Reference: NIFM Chapter 20, "Straight­In Approaches."
1.
Amplification ­ A Straight­in approach is an Instrument approach conducted by
proceeding to the FAF at a prescribed altitude and continuing inbound on the final approach
course to the airport without making a Procedure Turn. These approaches utilize intersections,
TACAN fixes, and other NAVAIDS as an IAF that may or may not be aligned with the final
approach course. These approaches sometimes have IAFs located on an airway (including IAFs
located on an arc) to simplify the transition from the enroute phase to the terminal phase of flight
without having to execute a Procedure Turn type approach.
NOTE
A Straight­in procedure does not mean the approach must be completed
with a straight­in landing or made to straight­in landing minimums.
Generally, there are two basic differences in Straight­in approaches:
a.
Approaches that have the IAF aligned with the final approach course (FAC)
(Figures 6­65 and 6­66).
b.
Approaches that do not have the IAF aligned with the final approach course. The
term "No PT" designated along a track arrow (thick arrow) from a point identified as
the IAF, originating from a feeder NAVAID identified as the IAF (Figure 6­66) or
an enroute feeder fix identified as "IAF" (Figures 6­67/68/69) designates you will
not fly a Procedure Turn type approach.
NOTE
The absence of the "No PT" designation at the enroute feeder fix or "IAF"
for a feeder NAVAID indicates that the feeder fix or NAVAID is solely
used to direct the aircraft to an IAF along a designated track and altitude.
If cleared for an approach while tracking inbound to the IAF from a feeder
fix (thin arrow, NOT designated "NO PT" or "IAF"), you may descend to
the altitude depicted along the feeder or IAF crossing altitude, whichever is
higher. Upon arrival at the IAF, perform the appropriate approach
procedures.
Straight­in approaches may display an arrival holding pattern at the IAF. TACAN or
VOR/DME is usually required since the IAF, step­down fixes, and FAF are determined by
DME. A variation to this typical approach would be a VOR approach utilizing intersections
formed by radial cuts from another facility to provide an IAF or FAF, such as the AUBURN
VOR RWY 28 (Figure 6­65).
6-104 RADIO INSTRUMENT FLIGHT PROCEDURES


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