Flight Training Instruction - Cnatra - U.S. Navy
Flight Training Instruction - Cnatra - U.S. Navy
Flight Training Instruction - Cnatra - U.S. Navy
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T-6B PRIMARY INSTRUMENT NAVIGATION CHAPTER EIGHT<br />
817. STRAIGHT-IN APPROACH<br />
General. Establish the aircraft inbound on a Straight-in approach.<br />
Description. A Straight-in approach is an Instrument approach conducted by proceeding to the<br />
FAF at a prescribed altitude and continuing inbound on the final approach course to the airport<br />
without making a Procedure Turn. These approaches utilize intersections, VOR/DME fixes, and<br />
other NAVAIDS as an IAF that may or may not be aligned with the final approach course.<br />
These approaches sometimes have IAFs located on an airway (including IAFs located on an arc)<br />
to simplify the transition from the enroute phase to the terminal phase of flight without having to<br />
execute a Procedure Turn type approach.<br />
NOTE<br />
A Straight–in procedure does not mean the approach must be<br />
completed with a Straight–in landing or made to straight-in landing<br />
minimums.<br />
Generally, there are two basic differences in Straight-in approaches:<br />
1. Approaches that have the IAF aligned with the final approach course (Figure 8-13).<br />
2. Approaches that do not have the IAF aligned with the final approach course. The term “No<br />
PT” designated along a track arrow (thick arrow) from a point identified as the IAF, originating<br />
from a feeder NAVAID identified as the IAF (Figure 8-14) or an enroute feeder fix identified as<br />
“IAF” (Figures 8-15), indicates you will not fly a Procedure Turn type approach.<br />
NOTE<br />
The absence of the “No PT” designation, at the enroute feeder fix<br />
or “IAF” for a feeder NAVAID, indicates that the feeder fix or<br />
NAVAID is solely used to direct the aircraft to an IAF along a<br />
designated track and altitude. If cleared for an approach while<br />
tracking inbound to the IAF from a feeder fix (thin arrow, NOT<br />
designated “NO PT” or “IAF”), you may descend to the altitude<br />
depicted along the feeder, or IAF crossing altitude, whichever is<br />
higher. Upon arrival at the IAF, perform the appropriate approach<br />
procedures.<br />
Straight-in approaches may display an arrival holding pattern at the IAF. TACAN or VOR/DME<br />
is usually required since the IAF, step-down fixes, and FAF are determined by DME. A<br />
variation to this typical approach would be, a VOR approach utilizing intersections formed by<br />
radial cuts from another facility to provide an IAF or FAF, such as the AUBURN VOR RWY 29<br />
(Figure 8-13).<br />
TERMINAL PROCEDURES 8-23