Switching between IAS / MACH in speed window with hardware controllers

[neinnunb]

Hello. I have programmed my WinWing MCP nicely with the RJ (using Spad-Next) but one thing that I cannot figure out, is when the plane switches from IAS to MACH in the speed window as you climb and descend. For now, I set a condition to switch after passing flight level 240, but that's really not ideal. I've checked all LVARs to determine which mode is active, but can't find it.

Maybe a developer can share some insight? I just need to know the state of the speed window, if it's IAS or MACH.

[gazdav787]

Try the JF_RJ_APFD_Speed_Mode LVar. It should change from 0 to 1 when the MCP shows the Mach speed

[neinnunb]

Perfect! It works, thank you!