This lab supports the development of Virtual Reality models of manufacturing processes, with an emphasis on design and evaluation of assembly operations in aviation manufacturing.  The lab consists of an immersive visualization environment that can be used for real-time evaluations of visibility, reach and ergonomics of assembly tasks, as well as for the development of simulations in JACK and IGRIP/ENVISION.  While one person immersed in the environment can interact with it, others can observed the tasks from first and third person perspectives.  Immersive Virtual Environments developed here can be ported to other visualization centers, such as the Virtual Reality Lab at NIAR, for visualization by larger teams.