Originally Posted by
alf5071h
Later aircraft 737-400, MD 80, (F100, Avro RJ) with updated avionics, autoland, FMS, and EFIS, sought to standardise the operational aspects (arrange the flight-deck) again according to their way of doing things (operational,philosophy).
As originally certificated the MD-80 had no FMS and no EFIS. It was advanced in other areas as it had Cat 111a autoland and optional dual HUD. It seems remarkable now but the MD-80 was certificated with iron gyros.
Despite the fact that DC-9 had always been 2 crew I remember there was some objection to MD-80 being 2 crew.