The aircraft I flew in the '80s had an artificial horizon that showed whether you were straight and level. That aircraft wasn't capable of inverted flight (or

The aircraft I flew in the '80s had an artificial horizon that showed whether you were straight and level. That aircraft wasn't capable of inverted flight (or maybe I wasn't) but the dial was vertically symmetrical and the only indication you were upside down would have been the (small) printed numbers showing you degrees. I saw the same dial in a flight simulator for an A-10 Warthog, so I'm assuming there were cues but no flashing red light.