HSC/YAK, 8107 13th St, Brooks AFB, TX 78235-5218

A -- COMMERCIAL-OFF-THE-SHELF (COTS) ACTIVE NOISE REDUCTION (ANR) SYSTEMS AND BATTERY PACKS DUE 041497 POC Mrs. Susan M. Madrid, Contract Specialist, (210) 536-6337 The Life Support Division at the Human Systems Program Office, Brooks AFB, TX is contemplating the acquisition of Commercial-Off-The-Shelf (COTS) Active Noise Reduction (ANR) systems and battery packs for use in the Gentex SPH-4AF and HGU-56/P helmets and on a headset. This announcement is not a formal solicitation and is not a request for proposal. Any formal solicitation will be announced separately. This synopsis is for information and planning purposes only and is not to be construed as a commitment by the Government. The intended operating environment for the SPH-4AF and HGU-56/P COTS ANR system will include, but is not limited to, the MH-53J, MH-60, MH-47, and MH-6 helicopters. The COTS ANR system must integrate with the standard SPH-4AF and HGU-56/P helmets maintaining existing levels of helmet performance and personnel equipment compatibility. Options for system integration include installation of ANR electronic modules and cabling into the stock earcups and helmets, or retrofit with new earcups and cabling. The intended operating environment for the COTS ANR headset will include, but is not limited to, C-130s, engine test cells, a engine test cells, and flightline applications. The COTS systems (headset and helmet) must be compatible with low impedance military radios having nominal microphone and communication impedance values of 5 and 10 Ohms, respectively. The COTS ANR systems must have the capability for operation using unfiltered 28 VDC aircraft power and/or a supplied ANR system battery pack. The COTS ANR system must able to interface direct with or be modified to accept with TP108 connector. The COTS ANR systems must not interfere with onboard aircraft equipment or be susceptible to aircraft electromagnetic interference. The COTS ANR systems must be intrinsically safe for use in explosive atmospheres and provide communications in the event of ANR failure or loss of power. The COTS ANR systems must be capable of operation in high noise environments, up to 130 dB overall sound pressure level OASPL maximum. Throughout its service life, the COTS ANR systems must be capable of operation in salty humid environments, up to 95% rel. humidity, with temperatures ranging from 52 C to -18 C. Information submitted on the COTS ANR systems should be pertinent and specific in addressing the needs under consideration. Technical discussions on COTS ANR systems submitted for consideration should include relevant aspects of circuit design, components, mechanical construction, materials, etc. Physical ear attenuation data performed in accordance with ANSI S12.42-1995 is requested for conveying attenuation performance. Test results submitted showing compliance with other stated needs shall include discussion of test methodology, test equipment, measured parameters, and supporting test data. Information (customer list, points of contact and phone numbers) on past, current, or planned future contracts or purchases relative to the submitted COTS ANR should also be presented along with the customer application, i.e. type of aircraft. Information on manufacturing capability, build and delivery to date should also be provided on the COTS ANR systems presented for review. Price information to include current catalog prices of complete systems as well as assemblies of the ANR systems intended for replacement during maintenance and repair should also be submitted. Anticipated price is requested for COTS ANR systems not currently listed in a catalog. Samples of the COTS ANR hardware (headset and helmet system), if available, should also be submitted and include the system battery pack for operation. Required installation and operation instructions should also be submitted with hardware samples. Written responses and COTS ANR hardware must be received before 14 April 97. Telephone responses will not be honored. There is no specific format or outline for responses so long as the information is pertinent to the contemplated acquisition. Hardware samples submitted to the Government will be returned as is after review and inspection. Firms responding should indicate whether they are a small business(s), a small disadvantaged business (SDB), 8(a), or large business (L). Responses should be addressed to Human System Center/YAK; Attn: Mrs. Susan M. Madrid, 8107 13th Street, Brooks, AFB TX, 78235-5218. (0058)

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