 NTHT does not have a public museum or operation yet, but seeks volunteers to help preserve its collection of authentic Fort Worth trolleys.When the Vought Airtrans automated people mover system that operated at Dallas-Fort Worth International Airport between 1974 and 2005 was retired, Cars #30 and #82 were donated to NTHT.The group also has cars and other equipment from the Tandy Center Subway which operated in downtown Fort Worth from 1963 to 2002.