Evaluation of the US Army Fitting Program for the Integrated Helmet Unit of the Integrated Helmet and Display Sighting System

In June 1985, the US Army began fielding a new aircraft known as the Advanced Attack Helicopter, the AH-64. Integral to this new aircraft is a monocular helmet-mounted display system, the Integrated Helmet and Display Sighting System (IHADSS). Along with various electronic components, the IHADSS inc...

Full description

Saved in:
Bibliographic Details
Main Authors: Rash, Clarence E, Martin, John S, Gower, Daniel W , Jr, Licina, Joseph R, Barson, John V
Format: Report
Language:English
Subjects:
AH-64 AIRCRAFT
AS879
ATTACK HELICOPTERS
CATHODE RAY TUBES
DISPLAY SYSTEMS
ELECTRONIC EQUIPMENT
EYE
FITTINGS
H-64 AIRCRAFT
HELMET MOUNTED DISPLAYS
HELMETS
IMPACT
INTEGRATED SYSTEMS
INTERFACES
LINE OF SIGHT
MAN MACHINE SYSTEMS
MOBILIZATION
NOISE
Non-radio Communications
OPTICAL EQUIPMENT
PE62777A
PILOTS
PROTECTION
RELAYS
SUSPENSION DEVICES
WU164
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In June 1985, the US Army began fielding a new aircraft known as the Advanced Attack Helicopter, the AH-64. Integral to this new aircraft is a monocular helmet-mounted display system, the Integrated Helmet and Display Sighting System (IHADSS). Along with various electronic components, the IHADSS includes a helmet referred to as the Integrated Helmet Unit (IHU). The purpose of the IHU is to provide the aviator with basic impact and noise protection. In addition, it serves as a platform for the display system, composed of a miniature, 1-inch diameter, cathode ray tube (CRT) and an optical relay device, the Helmet Display Unit (HDU). The basic fitting process involves numerous steps including, but not limited to, adjustments to the suspension system, proper location and alignment to the HDU, and final trimming of the helmet visor to accommodate the HDU when in the operating position. The objectives of the fitting procedure are to: a) obtain a comfortable, stable fit of the IHU, which will enable the aviator to achieve the maximum field-of-view provided by the HDU when it is mounted on the helmet and b) achieve boresight, which permits accurate engagement of weapons systems. This report documents the fitting program established at USAARL, its successes and deficiencies, and presents recommendations for designing a fitting program which, will ensure that the man- machine interface, as provided by the helmet, is optimized.