User manual GARMIN CNX 80 INTEGRATED AVIONICS SYSTEM CNX80 GENERIC AFM IN WORD FORMAT DOC FILE

[. . . ] Choose the new Destination airport and press Enter. Or, if you are flying multiple approaches and receive a clearance direct to another airport and are awaiting the first approach clearance, then: Method B 1. Select the Direct-To page and select the DB soft key at the bottom of the display. This allows you to select any airport from the Jeppesen database. Or you can use the NRST function and select the airport of choice if it happens to be in the neighborhood. [. . . ] At that point the SUSP annunciator will go out and subsequently come back on at the FAF. Again, once you check the FAF, unsuspend the CNX80 in preparation for the missed. What is a Discontinuity? A discontinuity is a simple device that has existed for years in Flight Management Systems on air transport aircraft. It has a specific task, mainly to call your attention to a potential problem in your flight plan that you must rectify. Essentially think of it as a gap in your flight plan that you must resolve, and the CNX80 is asking for specific navigation information. Discontinuities occur for one of two reasons: 1. The CNX80 is asking for your input to determine how to navigate between the waypoints adjacent to the discontinuity (deleting a discontinuity equates to flying direct between those waypoints), or: 2. Example: You've selected a STAR or an approach with transitions that don't match, i. e. you select a STAR that terminates at waypoint A and the instrument approach you selected starts at waypoint B. The CNX80 sees this as a potential problem and inserts a discontinuity flagging the problem for you to fix. If you made an error in selecting the wrong transition on the approach, you can reselect the approach and select the correct transition, which removes the discontinuity, or you may highlight the discontinuity and delete it if you really want to go from waypoint A direct to waypoint B. The fundamental design consideration here is that instead of making a potentially incorrect assumption and stringing waypoints together without any further consideration, the CNX80 will ask you for resolution to the problem as PIC. Again, if you build your flight plan without any enroute or procedural errors, most likely you won't see discontinuities very often. Should you ever fly into a discontinuity, this will be annunciated on the CNX80 and the system will roll wings level and continue on the same course it had prior to reaching the waypoint before the discontinuity. Intercepting an Airway There are a couple of ways this typically happens when you're dealing with ATC (but of course there are always the really creative controllers that have something unique in mind for you, ) usually a vector to intercept and occasionally the outbound radial to intercept an airway. Vectors onto an airway are simple to deal with using your autopilot, or merely flying the heading assigned. By observing the CNX80 you can determine on the moving map approximately where you will intercept the airway (between waypoints CARRO and GLORR for example, ) then simply select the Direct To page and scroll down to the next waypoint, GLORR in this example, and press Flyleg. This activates that leg of the flight plan for navigation and you will see that on the bottom of the page in magenta. At this point, the CNX80 will provide navigation to the leg. By engaging the autopilot (roll steering capable, ) the CNX80 will drive you to the active leg and then sequence the flight plan normally. For non roll steering capable autopilots, wait until the needle comes alive and then engage the NAV mode, making sure you've set the course appropriately. For radial to intercept an airway, this can be accomplished a couple of different ways, depending upon what's most convenient. You can set the frequency on the VHF Nav radio using the NRST function and selecting VOR's and using old fashioned VHF Nav radio skills, or you can select the VOR if it's in your flight plan or directly from the database and use the OBS mode located on the Direct To page. This reads your HSI or CDI resolver and allows you to use the GPS WAAS navigation function to essentially treat any waypoint as a VOR station. The system automatically goes into suspend mode and the outbound radial you've selected will be shown on the moving map. [. . . ] There is a production schedule for these approaches which we expect will change as the process proceeds and greater familiarity with the development process is gained. We'll pass along more info as it becomes available. There will also be automatic flight plan transfer and user waypoint transfer between CNX80's in dual installations for V2. 0. This will eliminate the need to modify the flight plan on both units in dual installs. [. . . ]