Enables radio altimeter PM callouts from 400ft.
Concorde Radio Altimeter Callouts v0.1.zip
v1.0.0
A very barebones alpha version of a small app which reads the radio altimeter and announces the callouts on final.
Helps make landing more realistic and easier.
It does not need to be installed, just run the .exe within the folder. The folder can be placed in any location.
Requires SimConnect and .NET 8.0 (Windows should automatically prompt for .NET installation).
Tested on 2020 but should work in 2024 too.
Unfortunately the decision height cannot be changed.
DH is fixed at 300 feet. The DH on the Concorde's radio altimeter should be set at 200ft for it to line up properly, as the DH horn seems to be off by 100ft in the aircraft.
The callouts also only start from 400 feet.
LLM assisted coding was used for this project.
It can also be used with any aircraft which has the same radio altimeter simvars, however I have only used it with Concorde.
Unzip and run the exe.
Make sure simconnect and .NET 8 is installed.
Yes. Concorde Radio Altimeter Callouts can be downloaded free from Hangar Addons. It is released as Freeware – No Redistribution.
Concorde Radio Altimeter Callouts is an addon in the Utilities category for MSFS 2020.
The quickest way is the Hangar Addons Manager: select Add to Addon Manager on this page and it downloads and installs Concorde Radio Altimeter Callouts in the right folder. You can also download the file (2 MB), unpack it and copy it into your MSFS 2020 addons folder. The installation guides on Hangar Addons show where that is.
Concorde Radio Altimeter Callouts was made by highflyer.
The latest version is v1.0.0, last updated on October 28, 2026.
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