When imperial units are enabled, a vehicle's speed in the UI is displayed as km/h.
- Legacy ID
- Ingame UI
useImperialSystem=1; in Arma3Profile
Drive or fly a vehicle, note the displayed speed and watch <speed vehicle player> which shows a bigger value.
The image uploaded shows the standard aircraft instruments at the bottom also corrupted by using the flag that's the subject of this query
As you can see, setting this flag makes aircraft instruments unreadable and doesn't update the units label (though it does do the conversion) from km/h to knots, m into feet or it's SI abbreviation '