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Protective effect of helmet gentex hgo-56/p on hearing loss among military helicopter pilots
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Protective effect of helmet gentex hgo-56/p on hearing loss among military helicopter pilots
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Journal Article
Protective effect of helmet gentex hgo-56/p on hearing loss among military helicopter pilots
2022
Overview
Aviation noise represents an important hazard for hearing loss among military pilots as they are continuously exposed to excessive noise during flight operations. Modern military aircraft, due to their maneuverability and tactical capabilities, require increasing engine power, while noise protection is limited only to the personal protective equipment which protects to a limited extent. Previous generations of helicopter pilots in the Croatian Air Force (CAF) used GSSH-A-18 headphones, whereas Gentex HGU-56/P helmets have been in use in CAF since 2004, primarily as mechanical protection for the head and secondarily to protect hearing. A study on hearing threshold measurements was performed on multi-purpose transport helicopter pilots who used headphones and helmets, respectively. The population of pilots who used GSSH-A-18 headphones had significantly higher hearing loss at higher frequencies, in the left ear, and in the speech area compared to the group using Gentex HGU-56/P helmets. The results of this study confirm the benefit of using of the Gentex HGU-56/P helmet to preserve the pilots’ hearing.
Zrakoplovna buka predstavlja važnu opasnost za gubitak sluha među vojnim pilotima, budući da su kontinuirano izloženi prekomjernoj buci tijekom letačkih operacija. Moderno vojno zrakoplovstvo zbog svojih manevarskih sposobnosti i taktičkih mogućnosti zahtjeva povećanje snage motora, dok je zaštita od buke ograničena na osobnu zaštitnu opremu koja štiti do određene granice. Prijašnje generacije pilota helikoptera u Hrvatskom ratnom zrakoplovstvu (HRZ) koristile su GSSH-A-18 slušalice, dok su Gentex HGU-56/P kacige u upotrebi u HRZ-u od 2004. godine; primarno kao mehanička zaštita za glavu te sekundarno kao zaštita sluha. Studija o mjerenju praga sluha provedena je kod pilota višenamjenskih transportnih helikoptera, koji su koristili slušalice, odnosno kacige. Populacija pilota koja je koristila GSSH-A-18 slušalice imala je znatno viši gubitak sluha na visokim frekvencijama u lijevom uhu i u govornom području, u usporedbi s grupom koja je koristila kacige Gentex HGU-56/P. Rezultati ovog istraživanja potvrđuju korist korištenja kacige Gentex HGU-56/P pri očuvanju sluha pilota.
