Originally Posted by
rickair7777
It has both, along with pretty much all larger turbine aircraft...DC is easier to understand than AC, so I was cutting our applicants a break

Didn't answer my ? but oh well, thought I was actually going to learn something.
Ah yes the TRU's I can still visualize the AVSOFT pictures of the CRJ schem on that one. Still begs the question though so what....CRJ had TRU's ERJ had an inverter that ran only two items that I recall GPWS and windshear again so what...