15 minutes? If you flew in a small aircraft regularly,
you would know it takes 40-60 minutes to prep a plane
from park to airborne in zero traffic
How much of that prep is eliminated by going full automation? Isn't most of the prep the pilot running through a checklist?If there is unavoidable time consuming checking, you could do that in advance and provide the plane as an autonomous taxi. So it shows up, picks you up, drops you off.