Flight symbology offers one of the primary countermeasures that can help prevent and alleviate spatial disorientation. As new helmet-mounted displays (HMDs) are being created, we must develop more effective methods of supplying the pitch and bank information to the pilot. While most flyers have long used the inside-out attitude indicator, or a moving horizon (MH) display, many studies have shown that an outside-in display, or a moving airplane (MP), is ...