Abstract
As part of an over-all evaluation of the USNEL Flight Deck Communication System, an RCA Modulated Air-Flow Loudspeaker (air horn designed primarily as a high noise level reliability testing facility) was tried out as a speech and alarm signaling transducer on the flight deck of an aircraft carrier. Over-all levels of wide-band (200–6000 cps) noise reached 130 db at optimum points on the deck, as compared to 110 db for the present system. Speech intelligibility and alarm detection tests showed the air horn to be useable with jet aircraft at idle (30%) power while the present loudspeakers could not be heard. Neither loudspeaker system was adequate with jets at full power.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
