Raytheon selected Heartwood to create a 3D, PC-based maintenance trainer for its Patriot Missile Defense System’s radar. This maintenance trainer used the low-polygon assets to produce an advanced interactive media instructional (IMI) which teaches maintenance operators how to diagnose and repair a variety of error faults within the radar system. As a subsequent project, Heartwood used these existing 3D digital models to create a 3D web-based virtual trainer.