In my experience a HUD on an aircraft needs scanning as much as a T-panel of
instruments. In addition, all manner of "useful" stuff is loaded on a HUD
making it tempting to concentrate on it. "Don't stare at the green writing"
was a constant refrain on the Jaguar conversion unit (my first HUD-equipped
aircraft). Certainly a HUD's symbology is collimated at infinity, but you
still tend to stare at each individual reading.
And you need to check all manner of other stuff around you, not merely ahead,
in both aircraft and cars.
Chris
>
> I'd like to have a "heads up" instrument display on the windshield. Then
> I'd be looking outside all the time.
>
--
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