forums.flyimc.com : Advanced Instrument Training Forums > Avionics > Garmin 430/530 Forum > Garmin 430/530 Trick: Double-Direct to Intercept an Airway
forums.flyimc.com : Advanced Instrument Training Forums > Avionics > Garmin 430/530 Forum > Garmin 430/530 Trick: Double-Direct to Intercept an Airway |
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| Moderated by: rkaplan | ||
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rkaplan Administrator 
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Suppose you are flying on a vector and ATC clears you to fly an airway that goes from point X to Y to Z and you are expected to intercept the airway between X and Y. How do you do this on the Garmin 430/530? Go to the Flight Plan page, turn on the cursor with the small right knob, highlight Y and then Press DIRECT TWICE followed by Enter as usual. Pressing Direct ONCE goes direct to the waypoint, whereas pressing Direct TWICE activates the LEG leading up to the waypoint. This is a very handy tool to remember when intercepting Victor airways. |
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JimP Member
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The 530 works a bit differently when selecting a DME arc. I recently flew the ILS into KAST and intercepted the D166S arc. Since I was intercepting the arc midpoint, I thought I would try the Direct, Direct, Enter shortcut. I highlighted the dme arc on 530 fligh plan and hit direct, direct, enter... but instead of highlighting the arc... it gave me a direct course to the enpoint of the arc (D084S). Trying again on the simulator at home... a single direct highlights the entire arc. Also... highlighting the endpoint of the arc (D084S) and hitting direct, direct, enter highlights the arc properly. This make sense and is consistent with the method to select a leg of a flighplan. One other thing that I noticed was when you are flying a particular leg... there is a magenta bracket in the left column showing the active segment. However, when you are flying an arc... the bracket spans across the words "dme arc". I would suggest practicing this on the simulator before real flight. /Jim |
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rkaplan Administrator
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JimP wrote: The 530 works a bit differently when selecting a DME arc. Those are good points Jim and quite correct. Another exception where only a single DIRECT is required to activate a leg is a leg defined not by length but based upon an interm altitude. Such a leg also causes the GPS to go into SUSPEND mode until the pilot manually unsuspends when reaching that altitude. An example is the KSJC Altam 7 Departure as below and there are also a good number of missed approach procedures around the country with interim altitude segments. The Altam 7 departure by the way is one of the most potentially confusing in my opinion of all procedures in the Garmin 430/530. If you simply load it then by default the GPS navigates toward the Oakload VOR, precisely 180 degrees off course into one of the busiest airspace areas in the country. You need to instead set up the GPS to fly the leg away from OAK, not toward OAK. Attachment: altam.jpg (Downloaded 58 times) |
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