Waypoints Lat/Long

[od1canod]

Hi there,

I do many of my flights in Northern Canada. Most of the airlines use Lat/Long waypoints.

I have confirmed that in the G:\X-Plane 11\Aircraft\X-Aviation\IXEG 737 Classic\fmc_data\NavData\wpnavfix.txt there are entries for 

58W14                   58W14-58.000000-114.000000 (This is the one I am trying to use) and 

5814N                   5814N 58.000000 -14.000000 which is not.

I enter 58W14 into the legs or route page on the FMC and I get "NOT IN DATABASE" while 5814N works fine.

Can anyone explain why, using up to date Navigraph data, I cannot use a fix listed in the wpnavfix.txt file in my route?

[tkyler]

58W14 is shown as "negative 58º"...which means southern hemisphere.   The plane couldn't reach that waypoint from anywhere in Canada without refueling.  Great circle distance from +49 latitude (southern border of Canada...ish) to -58 latitude is nearly 4200 NM.

The FMC caches waypoints within range of the aircrafts starting location...so we don't end up loading a gazillion waypoints that you can't fly to nonstop anyhow.  The range is a circle about 3000 miles from the aircraft location.   5814N is "positive 58º" and in the northern hemisphere, therefore, "in range" if you're in northern Canada and therefore in the database and loads.  58W14 isn't in range and so isn't loaded.

-tkyler

Edited May 26, 2020 by tkyler

[od1canod]

Thanks for the reply and that makes sense.

So my route is YEG to YZF and the carrier lists the plan as MOOTO 5800N/11400W YZF

Should there not be a way to add that into the FMC with the Lat/Long waypoint?

Regards,

Owen

[tkyler]

that is a user created waypoint, which we do not support.....YET.  See the following...

 

[od1canod]

OK, thanks! Appreciate the clarification.

[tkyler]

So we got PBD user created waypoints in for 1.31....we'll set about getting the others, including LL for the next update.

-tkyler

Edited June 6, 2020 by tkyler