sentences: "The four chosen systems were the Bendix Dashaveyor, the Ford ACT, TTI Hovair (a spin-off of General Motors) and the Rohr ROMAG, represented by its former rubber-wheeled prototype, the Monocab.Boeing and Vought also showed cars from their larger systems, Boeing's version of the Alden staRRcar being installed in Morgantown, and the Vought Airtrans being installed at Dallas/Fort Worth International Airport.