The role of the pilot's night vision system (PNVS) and the integrated helmet and display sighting system (IHADSS) in AH-64 Apache accidents

Jessica A. Stelle; Barbara S. Reynolds; Clarence E. Rash; R. David Peterson; Patricia A. Leduc

doi:10.1117/12.485870

8 September 2003 The role of the pilot's night vision system (PNVS) and the integrated helmet and display sighting system (IHADSS) in AH-64 Apache accidents

Jessica A. Stelle, Barbara S. Reynolds, Clarence E. Rash, R. David Peterson, Patricia A. Leduc

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Proceedings Volume 5079, Helmet- and Head-Mounted Displays VIII: Technologies and Applications; (2003) https://doi.org/10.1117/12.485870
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Helmet-mounted displays (HMDs), while not new, are a unique method of providing pilotage and targeting imagery to aviators. Although there are a number of HMDs in various phases of design, the AH-64s Integrated Helmet and Display Sighting System (IHADSS) is currently the Army's only fielded integrated HMD. A number of studies have investigated the visual and perceptual issues associated with the monocular optical design of the IHADSS in combination with the AH-64s forward looking infrared (FLIR) thermal sensor (Pilots Night Vision System - PNVS). While these systems have greatly enhanced the operational effectiveness of the AH-64, they have resulted in reports of physiological complaints, degraded visual cues, and both static and dynamic illusions. This study investigated the possible role the IHADSS HMD and PNVS may have played in AH-64 Apache accidents. A total of 217 AH-64 accidents (FY85-02) were analyzed and assigned causal factors associated with the use of the IHADSS and PNVS. The resulting analysis failed to identify any significant role between these systems and flight-related accidents.

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Jessica A. Stelle, Barbara S. Reynolds, Clarence E. Rash, R. David Peterson, and Patricia A. Leduc "The role of the pilot's night vision system (PNVS) and the integrated helmet and display sighting system (IHADSS) in AH-64 Apache accidents", Proc. SPIE 5079, Helmet- and Head-Mounted Displays VIII: Technologies and Applications, (8 September 2003); https://doi.org/10.1117/12.485870

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