BBC reporter at Pearce "And some of the planes even come back after dark"
Assume they leave the search area at last light which may be about 2 hrs later than at Pearce then they will get home about 6 hours after dark.
The following day, to get there at first light they will need to take off about 2 hours before dawn.
Don't they think? If they can't think why don't they ask why the planes land so late?