User Guide

Flight Simulator
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Microsoft
Therefore, if I’m heading down to SLI VOR from the north, I’ll turn and fly a heading of 120 degrees
after crossing the station. This should keep me close to the racetrack boundaries. After one minute
(the time shown next to the racetrack in the profile view, position G), I’ll turn left to intercept and
track the 300-degree course back to the VOR and complete the instrument approach. Of course, this
also assumes that I’ve previously set my OBS to 300 degrees. With slight simplification, that’s pretty
much how it’s done in the real world.
As an additional note, there are routes leading to the VOR (called feeder routes because they feed
you onto the instrument approach procedure) which don’t require a course reversal. Position H
shows one feeder route starting at MIDDS intersection and listing the letters NoPT, which stands for
no procedure turn. Along this route, you should fly the instrument approach without doing the course
reversal. In other words, fly directly to the VOR, then to the airport.
The Barb-type Course Reversal
The second type of course reversal is shown in Figure 3. This is known as a barb-type course reversal.
Let’s assume you’re approaching from ITMOR intersection (position A). This route leading to the RDD
VOR consists of flying the 224-degree course (tune the VOR to 108.4 MHz and set the OBS to 224).
The minimum altitude along this route is 3,700 feet (position B). Once you cross the VOR, turn and
track outbound on the 175-degree course as shown by position C (you must now set your OBS to
175). The objective here is to travel outbound, reverse your direction, then track inbound and fly the
instrument approach course.
The profile view shows 2,000 feet as the minimum altitude for the procedure turn, which should be
completed within 10 nautical miles (nm) of the VOR (position D). As you’re descending, you’ll travel
outbound and, while still within 10 miles, you can turn to a heading of 220 degrees (position E). Fly
this heading for a minute or less, then turn left to a heading of 040 degrees (position F) and intercept
the approach course inbound. This means you must reset your OBS to track to the VOR (turn the
OBS to 355 degrees). Once inbound, you may descend to 1,260 feet (position G). When your DME
(from RDD VOR) reads 2.6 miles, you can descend to 860 feet, which is the altitude shown in the
minima section (position H). The “M” shown in the profile section (position I) depicts the VOR as the
missed approach point.
Notice the two feeder routes leading from ITMOR and RED BLUFF VOR to RDD VOR (positions A
and J). Feeder routes are shown as slightly thinner than the instrument approach course and they are
always accompanied by minimum flyable altitudes. Neither of these routes lists the letters NoPT.
Therefore, as you approach RDD VOR along either of these routes, you must fly the procedure turn
as a means of reversing course before flying the instrument approach procedure.
From the RED BLUFF VOR (position J), you’d track to the RDD VOR on the 336-degree course (set
OBS to 336) then make a left turn after crossing the VOR and track outbound on the 175-degree
course from the VOR. Then you’d repeat the same course reversal process listed above.