LTV's (Vought) Airtrans was an automated people mover system that operated at Dallas-Fort Worth International Airport between 1974 and 2005. The adaptable people mover was utilized for several separate systems: the Airport Train, Employee Train, American Airlines TrAAin and utility service. All systems utilized the same guideways and vehicle base but served different stations to create various routes.After 30 years of service the system's 1970s technology was no longer adequate for the expanding airport's needs, and in 2005 it was replaced by the current Skylink system. While most of the system was auctioned and sold for scrap, some guideways and stations (now closed to the public) remain. Airtrans moved nearly 5 million people in its first year of operation; by the end of its life it had served over 250 million passengers.As the first US installation of a fully automated transit system, Airtrans technology was expected to be deployed in similar mass transit systems around the country. In Japan, the system was licensed by a consortium formed between Niigata Engineering and Sumitomo Corporation for similar deployments there. However, no further systems were constructed. Car #25 was donated to the Frontiers of Flight Museum in Dallas, Texas, and Cars #30 and #82 were donated to North Texas Historic Transportation in Fort Worth, Texas.