Flight Training Instruction - Cnatra - U.S. Navy

T-6B PRIMARY INSTRUMENT NAVIGATION CHAPTER EIGHT
817. STRAIGHT-IN APPROACH
General. Establish the aircraft inbound on a Straight-in approach.
Description. A Straight-in 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, VOR/DME 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 Straight–in procedure does not mean the approach must be
completed with a Straight–in landing or made to straight-in landing
minimums.
Generally, there are two basic differences in Straight-in approaches:
1. Approaches that have the IAF aligned with the final approach course (Figure 8-13).
2. 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 8-14) or an enroute feeder fix identified as
“IAF” (Figures 8-15), indicates 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.
Straight-in approaches may display an arrival holding pattern at the IAF. TACAN or VOR/DME
is usually required since the IAF, step-down 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 29
(Figure 8-13).
TERMINAL PROCEDURES 8-23