Noise Attenuation Performance Assessment of the Joint Helmet Mounted Cueing System (JHMCS)

reportActive / Technical Report | Accession Number: ADA582655 | Open PDF

Abstract:

The HGU-55P and HGU-68P flight helmets have been meeting the needs of the USAF and the USN pilots respectively for years. The Joint Helmet Mounted Cueing System JHMCS flight helmet has been developed and introduced into the aircrew community to enhance the pilots targeting performance. Louder conditions and missed radio calls have recently been reported by users of the HGU-55 AP JHMCS helmet compared to legacy helmets. The objective of this study was to determine what noise attenuation differences, if any, are present when comparing the JHMCS helmet configuration to legacy helmet configurations. REAT, MIRE, earphone free-field sensitivity and frequency response tests, as well as in-flight helmet shell tests were performed. Overall, there were no significant differences found when comparing the JHMCS helmet attenuation to the legacy helmets.

Author(s):
Gallagher, Hilary L. ; Mckinley, Richard L.
Author Organization(s):
AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
Descriptive Note:
Interim rept. Jan 2008-Aug 2010
Supplementary Note:
DOI: 10.21236/ADA582655
Pagination:
0038

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFRL-RH-WP-TR-2012-0174
Monitor Series:
TR-2012-0174, AFRL-RH-WP
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_6_Net Centric; JCA_6.3.3_Spectrum Management; JCA_6.1.1_Wired Transmission; JCA_6.3_Net Management; JCA_5.2.3_Share Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_8_Building Partnerships; JCA_6.1_Information Transport; JCA_1.2.5_Lessons Learned; JCA_3.2_Engagement; JCA_3_Force Application; JCA_8.2_Shape; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_8.2.1_Partner with Governments and Institutions
Communities of Interest:
Human Systems
Descriptor(s):
*FLIGHT HELMETS, *HELMET MOUNTED DISPLAYS, *HELMETS, ACOUSTIC ATTENUATION, CUES(STIMULI), FLIGHT CREWS, FLIGHT TESTING, FREQUENCY RESPONSE, NOISE(SOUND), PILOTS, SHELLS(STRUCTURAL FORMS), TARGETING, TEST AND EVALUATION
Field(s)/Group(s):
Protective Equipment
Keyword(s):
HGU 68 P, HGU 55 P, HELMET ATTENUATION, REAT, MIRE, EARPHONE ELEMENT, EARCUP, PE62202F, 71841621
Report Date:
2010 Aug 01
Creation Date:
2013 Sep 09