Hello, I’m new to using navigraph and msfs 2024 using fenix a320. When I use enter an ils arrival say EGLL 09L, it uses generic coding for the ils waypoints eg CF09L and FF09L instead of the specific ils waypoints that it would use in the real world eg IAA10 etc. The other approaches seem to be there eg rnp, starts sids etc. It just seems to be the ils approaches that are using generic coding.
Any ideas, thank you.
Hi,
And welcome to Navigraph.
The “generic coding” (as you called it) is not another coding as in the real world.
As an example:
CFxxx = Final Approach Course Fix xxx
FFxxx = Final Approach Fix xxx
IFxxx = Intermediate Approach Fix xxx
…
When you look at the charts, you see “behind” these waypoint idents the exact position.
Like your example 09R - FF09R (Final Approach Fix 09R) = equal D7.5 IBB or 8.2 LON
The real world works exactly in this way.
I hope it helps a little bit,
Richard
Thank you very much for the welcome and reply. That’s helpful, though in the ‘real world’ the ils coding very rarely has the waypoints CF** or FF** it would always be shown as for example IBB75, that way you have much fewer waypoints with the same name. That’s what made me wonder if I hadn’t fully downloaded the database or some other issue. Thanks
From the little I know there are 2 main providers of navdata globally, Jeppesen and Navblue. The latter provides the default navdata in MSFS.
Between Jeppesen and Navblue databases there are differences, notably in the coding of waypoints, as you noticed here. Here Jeppesen follows indeed what is specified in the ARINC-424 guidelines (the official rulebook for this kind of stuff), and Navblue would appear to do things a little bit differently, in the interest of clarity.
There’s not necessarily one way to do things, especially when you consider that even IRL different FMS will interpret the same coding differently.
Further differences I noticed are found for example in the coding of DME arcs in approaches, and Navblue coding LOC procedures separately from ILS.
Hi,
I want to correct it a bit… There are more major data providers in existence.
MSFS has used Lido data and charts since the release of MSFS 2024, and for a few months also in MSFS 2020. The answer itself is correct … every data provider uses their name conventions, but all follow the base ARINC424 specification.
Sorry for the clarification, but thanks for the additional answer to this topic!
Cheers,
Richard
