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Not the latter, but somewhat the former. It was an FAA outage that induced the simulated total WAAS outage, but it wasn't an outage in their real-world SBAS service itself, rather the reporting systems that the FAA uses to publish the service's status to the public via the internet. It's this system that the Hot Start CL-650 relies upon to determine WAAS coverage, signal quality, availability, etc., according to sim aircraft location. Sure, we could have "failed safe" and kept the in-sim WAAS "operational" based on the last reported status, but where's the fun in that? I think the failure was a nice opportunity for sim pilots to learn a thing or two!

No problem. It dawns on me that I saw/heard somewhere that the Challenger does not use FMOD. I believe I saw that in one of Totoritko's (Hotstart's) streams. Anyhoo, here's mine taking off. Oh... at the end of the video I show you where you can adjust the external sounds. That may have something to do with your issue.

Hi PIls, Catching up on posts.... Was that FAA-induced SBAS outage a real-world outage simulated concurrently in HS CL650, or was that something random that the sim placed? In all my years of actual flying in the CL300/350 or the Lear 45/75, I have never seen a LPV degrade down to LNAV/VNAV or LNAV level of service. I was actually flying the HS CL650 the same day, and got the same SBAS NOT IN USE message. I had to go to the ARR DATA page and switch the approach vertical mode from LPV to Baro. Last time I did that was in the Level D simulator. And oh by the way, the instructor could not simulate that degradation. He had lean over the shoulder and tell us that LPV as not available. Kudos to HotStart for going beyond what a Level D simulator could do, or at the very least the Challenger 300/350 sim. Rich Boll