Jose wrote:

This is about an accident involving air carrier equipment.
Often, the departure clearance is to fly runway heading.


I infer you mean that you set the heading bug on the exact runway
heading, not that you set the DG to the runway numbers (times ten). That
makes more sense.

Jose
Airliners don't have light aircraft type DGs. It is either an HSI or,
far more likely, a track-up moving map with an appreviated compass rose
at the top. Or, like the G-1000, it could be an electronic HSI.