July 26 train The 3rd train had an additional flatcar with maintenance van Missile Train Visits Area--> holding a 3rd stage Hercules SRM, as well as the 1st 80 feet "pre-prototype" launch car with special shock absorbers ("three-way stretch" system) transporting a simulated missile load using tank & steel compartments (with sand & concrete) for a total of 13 cars that left Hill on July 26.