Logging Flights

What happens to flights using a battery if I delete the battery?
Flights using that battery are deleted as well. It would be better to make the battery inactive by unchecking the 'active' box.
What happens to flights using a field if I delete the field?
Flights using that field are deleted as well. It would be better to make the field inactive by unchecking the 'active' box.
What if somebody else flies my plane?
Check the 'flown by someone else' box when adding the flight. The totals for the plane will be updated with this flight, but your personal totals will remain accurate.