I was exploring failures and these systems because I wondered why there were two gyro slaving switches AND an AHRS switch. I was surprised to discover that failing a single system labelled "GYRO" in the EFB fails the EHSI and regular HSI, either slaving switch controls both the conventional HSI and EHSI, the AHRS switch does nothing. Further, failing the vacuum has no effect on any of the instruments

]]>https://community.justflight.com/topic/10669/vacuum-gyro-efis-ahrs-systems-modelled-wrong-or-not-at-allRSS for NodeMon, 15 Jun 2026 10:51:04 GMTSun, 14 Jun 2026 17:24:30 GMT60Thank you! That all makes sense - the reason I think it's worth addressing in a future update is mainly because as implemented, a gyro failure would have a disproportionate effect because there isn't a back up

]]>https://community.justflight.com/post/50973https://community.justflight.com/post/50973Mon, 15 Jun 2026 00:59:54 GMTLooking at the code, the "Gyro" circuit is the remote compass, to which both the EHSI and HSI are slaved. The two remote compass control panels are redundant, but they could pretty easily be made to control two separate remote compasses. As for the vacuum failure, I believe that should only affect the standby attitude indicator (pilot's side), which will take some time to spin down and display the warning flag (or begin to tumble) after you trigger the failure. I don't have individual failures for the left and right ARHS that would affect the EADI, which I suppose can be taken to mean that both receive power through the same EADI circuit breaker. I can revisit some of these things and add additional failures before the next update to the TBM.

]]>https://community.justflight.com/post/50971https://community.justflight.com/post/50971Sun, 14 Jun 2026 21:25:37 GMT