Mileage Breakdown Point/Computer Navigation Fix with GNS 430

Joe

Well-Known Member
I've been searching all over and haven't found an answer, but when entering in waypoints into the flight plan of a GPS, in this instance a Garmin 430, what do you do if there is a mileage breakdown point (x) creating a bend in the airway instead of an actual named intersection? Is it even possible, or if you encounter this along a route do you have to rely on VORs for enroute navigation?

Thanks,

-Joe
 
Don't those all have waypoints now? Even if they're in parentheses the GPS database should have them. If not, you can always create the waypoint by specifying a radial and distance.
 
Garmin 430 pilot ref manual said:
7.11 USER WAYPOINT PAGE
In addition to the airport, VOR, NDB, and intersection information contained in the Jeppesen NavData Card, the GNS 430 allows the pilot to store up to 1,000 userdefined waypoints. The User Waypoint Page (Figure 7-37) displays the waypoint name (up to five characters long), identifier, radial from two reference waypoints, and distance from one reference waypoint, along with the user waypoint’s latitude/longitude position.

• REF WPT - Reference waypoint identifier (name)
• RAD - Radial from reference waypoint, in degrees magnetic or degrees true (depending upon unit configuration)
• DIS - Distance from reference waypoint, in nautical miles/statute miles/kilometers (depending upon unit configuration)
• Position - Latitude/Longitude (degrees/minutes or degrees/minutes/seconds), MGRS, or UTM/UPS
User waypoints may only be selected by name (identifier), as described in Section 7.1.

Creating User Waypoints
User waypoints may be created from the User Waypoint Page or the Map Page. To create a new user waypoint, simply enter its name (identifier) and position, or reference another waypoint by radial and distance.
To create a new user waypoint by entering its latitude/longitude position:
1) With the User Waypoint Page displayed, press the small right knob to activate the cursor.
2) Use the small and large right knobs to enter a name for the new waypoint (Figure 7-38) and press the ENT Key. The present position appears in the position field at the bottom of the page (Figure 7-39). To create a waypoint at the present position, turn the large right knob to highlight ‘Create?’ and skip to step 6. Figure 7-38 User Waypoint Name Field Selected
Figure 7-39 Waypoint Name Field Highlighted

If setting user waypoints is what you are talking about, I hope this helps.

source (with pictures):http://www8.garmin.com/manuals/GNS430_PilotsGuide.pdf
 
You mean I won't see that "x" when I look out the window? :D

Dang, Now I am really going to have to learn how to navigate.
 
I've been searching all over and haven't found an answer, but when entering in waypoints into the flight plan of a GPS, in this instance a Garmin 430, what do you do if there is a mileage breakdown point (x) creating a bend in the airway instead of an actual named intersection? Is it even possible, or if you encounter this along a route do you have to rely on VORs for enroute navigation?

Thanks,

-Joe
Enter the waypoint. Even the X waypoints have names in parenthesis. Those are in the database.

I assume you're talking about something like the course change on V247 between BIL and SHR? In that case ZAGHI is in the database.
 
Don't those all have waypoints now? Even if they're in parentheses the GPS database should have them. If not, you can always create the waypoint by specifying a radial and distance.
You know something, I think you're right... I knew some had names before, but I just looked all around the low enroute charts on ForeFlight and couldn't find one without a name. I think this question popped into my head while using one of the ancient figures you see for an FAA written test, but it looks like it's been rectified by giving them names.
 
You know something, I think you're right... I knew some had names before, but I just looked all around the low enroute charts on ForeFlight and couldn't find one without a name. I think this question popped into my head while using one of the ancient figures you see for an FAA written test, but it looks like it's been rectified by giving them names.
I seem to remember that the official line is that they have database identifiers, for ease of use, but you won't ever be told to go direct to one of them. Or something like that.

I'm pretty sure that the Jepp iPad app shows them.
 
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