take_off_and_land: again, I messed up the whitespace (!)
take_off_and_land: again, I messed up the whitespace (!)

rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop,rc500/ardrone_archive_aarons_laptop