Ok, but how much energy and manpower does it take to keep this in working condition? Even moving the crew from china to japan to service the plain would have co

Ok, but how much energy and manpower does it take to keep this in working condition? Even moving the crew from china to japan to service the plain would have cost money and used fuel from conventional transportation. It's a vehicle on life-support from fuel but not using it directly. Cool to see things moving along in the right direction though