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Author
Scheffey, J. L. | Wakelin, A. J. | Gott, J. E. | Tabet, R. J. | Williams, F. W.
Title
Aircraft Hangar Fire Suppression System Design Study.
Coporate
Hughes Associates, Inc., Baltimore, MD Washington Navy Yard, Washington, DC
Sponsor
Washington Navy Yard, Washington, DC
Report
NRL/MR/6180-00-8464, June 16, 2000, 87 p.
Distribution
AVAILABLE FROM National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161. Telephone: 1-800-553-6847 or 703-605-6000; Fax: 703-605-6900; Rush Service (Telephone Orders Only) 800-553-6847; Website: http://www.ntis.gov
Keywords
aircraft hangars | fire suppression | quick response sprinklers | fire detection | nozzles | aircraft fuels | fire protection | military aircraft | aqueous films | aqueous foams
Identifiers
low level AFFF; optical fire detection; grate nozzle; high bay; aviation fuel hazards
Abstract
The Navy and other military services within the U.S. Department of Defense (DoD) are responsible for providing fire protection systems capable of protecting DoD assets around the world. This includes the protection of high value military aircraft, which are maintained and repaired in high bay aircraft hangars. These aircraft are an essential element of a strategic military force whose mission is unparalleled by commercial aircraft. The Naval Facilities Engineering Command (NAVFAC) is responsible for the design, construction and maintenance of all shore-based facilities at U.S. Navy and Marine Corps bases worldwide. Fire protection design criteria for Navy aircraft hangars have evolved over the years. Many of the existing hangars were built in the World War II era, and their fire protection consisted solely of overhead deluge water sprinkler systems activated by pneumatic rate-of-rise heat detectors. With the development of aqueous film-forming foam (AFFF), Navy design criteria were changed to include overhead AFFF deluge sprinkler systems, a variety of new detection systems, and in many cases, supplementary underwing foam monitor nozzles. These protection concepts are embodied within industry standards for protecting commercial aircraft hangars. Specifically, the National Fire Protection Association (NFPA) Standard on Aircraft Hangars (NFPA 409) is the recognized national consensus standard. In essence, the protection concepts in NFPA 409 are recognized by DoD, even though there are unique considerations for protecting vital assets. These unique considerations are not necessarily addressed by NFPA 409, which is concerned primarily with property protection (i.e., protection of the hangar structure).