I was wondering what the line was in the MD-80 model for cockpits. I tried to see this thru photos, but it didnt help. I have seen three types of cockpits: an analogue version, like the DC-9 but without the bowtie, a version with the glass attitude and HSI, but analog engine gauges (like the Boeing 737-300) and with electric engine gauges (like the Boeing 737-400-500.) What model of MD-80 (80,81,82,83,87,88,90) drew the line between these different cockpits installed?
Thanks a lot