When ready on demand is a must, Trackmobile is the name that United Launch Alliance engineers trust. Originally purchasing three 4850 TMs to move the Atlas V rocket from the vertical integration facility to launch complex 41, they’re still in used today. Chosen for their steel wheel design and Trackmobile’s exclusive MAX-TRAN® weight transfer management and MAX-TRAC slip control systems, operator teams were able to precisely synchronize and optimize power delivery and traction. The 180 foot long, 17 foot diameter rocket rides on a transporter erector system and is raised hydraulically from a horizontal position to a vertical launch position. Trackmobile does its part by attaching to the erector system and moving the whole consist to the launch pad.