Rockwell Collins announced that its HGS-6250 head-up guidance (Hud) system has been certified for the Gulfstream G450 and G550. The Hud will be standard on the G450, G550 and G650 and optional on the G250, G350 and G500. Based on LCD and LED technology, the HGS-6250 provides precise head-up guidance cues, the widest field of view of any civil Hud and is compatible with Gulfstream’s EVS II enhanced-vision system, Rockwell Collins said.