Break things here, where it’s free

Toggle failures — stack as many as you like — and watch what survives.

ARCH ADual GSU 25

PFD MFD GSU 25 #1 GSU 25 #2
NORMALTwo identical sensors, cross-comparing.
AUTOPILOTFull flight director, coupled nav

ARCH BGSU 25 + G5

PFD MFD GSU 25 G5
NORMALDissimilar standby, watching independently.
AUTOPILOTFull flight director, coupled nav

Per Garmin 190-01115-01. Servo power and CAN dependencies included — reversion paths are hypotheses until ground-tested. slingology.blog