![]() ![]() Fly that 273° heading until you intercept the localizer and are tracking it outbound. ![]() AGL before making any turns, so most IFR pilots will maintain the centerline until 400 ft. When IMC, it’s standard practice to fly the runway track until at least 400 ft. Take off from Runway 33 and make a right turn to a heading of 343°. You’ll need to be able to intercept this localizer when you get airborne. Tune your navigation radio to the localizer frequency (108.50) and set the course to 303° (although tracking the localizer won’t technically be affected by your course setting, having it set correctly aids in situational awareness). To fly the LINDZ# departure, start by setting up the airplane. In other words, when you join the "localizer" on this departure, it works just like an ILS.except it’s designed to point you away from the airport instead of toward it! As you can see on the chart, a note clarifies that "I-PKN back course outbound is normal sensing". In other words, you would turn in the opposite direction you think you need to in order to remain centered on the localizer.įortunately, the designers of the LINDZ# departure at KASE decided to avoid this complexity. Depending on your aircraft’s navigational equipment, flying a back course approach could mean you are dealing with a "reverse sensing" localizer: when a course deviation indicator (CDI) tells you to turn right, you actually turn left. In fact, as of summer 2020, there were only 64 back course approaches left in the United States-that’s less than 0.4% of the available approaches published by the FAA. However, upgraded technology (i.e., RNAV approaches) have mostly eliminated the need to serve multiple runways with a single installation. Historically, smaller airports used a localizer that transmits a signal forwards and backwards so that horizontal guidance could be given for both sides of the runway from a single installation. Therefore, when flying an ILS approach, the needle behaves the same regardless of what course heading you have selected. Unlike VORs, localizers only have one radial and only transmit a signal in a single direction. In order to understand the reasoning behind a back course approach, it’s first important to discuss how localizers work. However, unlike when we flew the ALPIN# pilot navigation SID at KJAC, this one involves a back course. You may also recognize this as a pilot navigation departure, which takes the aircraft directly from the runway to the enroute environment without a requirement for ATC instruction. Runway 15 departures are not approved, due to terrain.
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