A General Purpose Prototype Muffler for the Bradley Fighting Vehicle 25-mm Automatic Cannon Fitted with Standard Barrel
In response to complaints at German Training Areas (GTA) about firing noise generated by the 25-mm M242 chain gun that is mounted on the Bradley Fighting Vehicle (BFV), a prototype muffler for use with all types of ammunition was designed, fabricated, and performance tested against requirements give...
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| creator | Fansler, Kevin S Garner, James M |
| description | In response to complaints at German Training Areas (GTA) about firing noise generated by the 25-mm M242 chain gun that is mounted on the Bradley Fighting Vehicle (BFV), a prototype muffler for use with all types of ammunition was designed, fabricated, and performance tested against requirements given by an Operational Needs Statement. This muffler was designed for use with the standard M242 barrel. As such, the muffler consisted of a muffler shell that screwed on a perforated extension tube. Tests included noise attenuation and projectile dispersion. Noise requirements were not only met but also exceeded. Dispersion testing of M793 and M9lO ammunition showed that the barrel/muffler system, when attached loosely to the barrel, did not perform as well as the standard barrel/brake system. Nevertheless, testing with other mufflers that were held tightly to the barrel showed no degradation of the dispersion pattern. Further testing is needed with a muffler tightly held on the barrel. |
| format | Report |
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This muffler was designed for use with the standard M242 barrel. As such, the muffler consisted of a muffler shell that screwed on a perforated extension tube. Tests included noise attenuation and projectile dispersion. Noise requirements were not only met but also exceeded. Dispersion testing of M793 and M9lO ammunition showed that the barrel/muffler system, when attached loosely to the barrel, did not perform as well as the standard barrel/brake system. Nevertheless, testing with other mufflers that were held tightly to the barrel showed no degradation of the dispersion pattern. Further testing is needed with a muffler tightly held on the barrel.</description><language>eng</language><subject>ACOUSTIC ATTENUATION ; Acoustics ; AUTOMATIC WEAPONS ; BFV(BRADLEY FIGHTING VEHICLES) ; CANNONS ; CHAIN GUNS ; COMBAT VEHICLES ; DEGRADATION ; DISPERSING ; GERMANY(EAST AND WEST) ; GTA(GERMAN TRAINING AREAS) ; GUN BARREL ATTACHMENTS ; Guns ; IMPULSE NOISE ; M-242 GUNS(25 MM) ; MUFFLERS ; NOISE ; NOISE REDUCTION ; PATTERNS ; PERFORATION ; PROJECTILES ; PROTOTYPES ; REQUIREMENTS ; TRAINING</subject><creationdate>1995</creationdate><rights>APPROVED FOR PUBLIC RELEASE</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,776,881,27544,27545</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/ADA298061$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Fansler, Kevin S</creatorcontrib><creatorcontrib>Garner, James M</creatorcontrib><creatorcontrib>ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD</creatorcontrib><title>A General Purpose Prototype Muffler for the Bradley Fighting Vehicle 25-mm Automatic Cannon Fitted with Standard Barrel</title><description>In response to complaints at German Training Areas (GTA) about firing noise generated by the 25-mm M242 chain gun that is mounted on the Bradley Fighting Vehicle (BFV), a prototype muffler for use with all types of ammunition was designed, fabricated, and performance tested against requirements given by an Operational Needs Statement. This muffler was designed for use with the standard M242 barrel. As such, the muffler consisted of a muffler shell that screwed on a perforated extension tube. Tests included noise attenuation and projectile dispersion. Noise requirements were not only met but also exceeded. Dispersion testing of M793 and M9lO ammunition showed that the barrel/muffler system, when attached loosely to the barrel, did not perform as well as the standard barrel/brake system. Nevertheless, testing with other mufflers that were held tightly to the barrel showed no degradation of the dispersion pattern. Further testing is needed with a muffler tightly held on the barrel.</description><subject>ACOUSTIC ATTENUATION</subject><subject>Acoustics</subject><subject>AUTOMATIC WEAPONS</subject><subject>BFV(BRADLEY FIGHTING VEHICLES)</subject><subject>CANNONS</subject><subject>CHAIN GUNS</subject><subject>COMBAT VEHICLES</subject><subject>DEGRADATION</subject><subject>DISPERSING</subject><subject>GERMANY(EAST AND WEST)</subject><subject>GTA(GERMAN TRAINING AREAS)</subject><subject>GUN BARREL ATTACHMENTS</subject><subject>Guns</subject><subject>IMPULSE NOISE</subject><subject>M-242 GUNS(25 MM)</subject><subject>MUFFLERS</subject><subject>NOISE</subject><subject>NOISE REDUCTION</subject><subject>PATTERNS</subject><subject>PERFORATION</subject><subject>PROJECTILES</subject><subject>PROTOTYPES</subject><subject>REQUIREMENTS</subject><subject>TRAINING</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1995</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNqFjDEOgkAQRWksjHoDi7kAiWI0Wi4o2piQaGzJhB3YTZZdMgwh3F4Ke6tfvPf-MhoV3MkTo4Ni4C70BAUHCTJ1BM-hrh0x1IFBDEHKqB1NkNvGiPUNfMjYyhEkx7htQQ0SWhRbQYbeBz97IqRhtGLgJeg1soYUmcmto0WNrqfNb1fRNr-9s0es577s53eSUl1VcjnvTvvDH_wF021BdA</recordid><startdate>199507</startdate><enddate>199507</enddate><creator>Fansler, Kevin S</creator><creator>Garner, James M</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>199507</creationdate><title>A General Purpose Prototype Muffler for the Bradley Fighting Vehicle 25-mm Automatic Cannon Fitted with Standard Barrel</title><author>Fansler, Kevin S ; Garner, James M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_ADA2980613</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1995</creationdate><topic>ACOUSTIC ATTENUATION</topic><topic>Acoustics</topic><topic>AUTOMATIC WEAPONS</topic><topic>BFV(BRADLEY FIGHTING VEHICLES)</topic><topic>CANNONS</topic><topic>CHAIN GUNS</topic><topic>COMBAT VEHICLES</topic><topic>DEGRADATION</topic><topic>DISPERSING</topic><topic>GERMANY(EAST AND WEST)</topic><topic>GTA(GERMAN TRAINING AREAS)</topic><topic>GUN BARREL ATTACHMENTS</topic><topic>Guns</topic><topic>IMPULSE NOISE</topic><topic>M-242 GUNS(25 MM)</topic><topic>MUFFLERS</topic><topic>NOISE</topic><topic>NOISE REDUCTION</topic><topic>PATTERNS</topic><topic>PERFORATION</topic><topic>PROJECTILES</topic><topic>PROTOTYPES</topic><topic>REQUIREMENTS</topic><topic>TRAINING</topic><toplevel>online_resources</toplevel><creatorcontrib>Fansler, Kevin S</creatorcontrib><creatorcontrib>Garner, James M</creatorcontrib><creatorcontrib>ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Fansler, Kevin S</au><au>Garner, James M</au><aucorp>ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>A General Purpose Prototype Muffler for the Bradley Fighting Vehicle 25-mm Automatic Cannon Fitted with Standard Barrel</btitle><date>1995-07</date><risdate>1995</risdate><abstract>In response to complaints at German Training Areas (GTA) about firing noise generated by the 25-mm M242 chain gun that is mounted on the Bradley Fighting Vehicle (BFV), a prototype muffler for use with all types of ammunition was designed, fabricated, and performance tested against requirements given by an Operational Needs Statement. This muffler was designed for use with the standard M242 barrel. As such, the muffler consisted of a muffler shell that screwed on a perforated extension tube. Tests included noise attenuation and projectile dispersion. Noise requirements were not only met but also exceeded. Dispersion testing of M793 and M9lO ammunition showed that the barrel/muffler system, when attached loosely to the barrel, did not perform as well as the standard barrel/brake system. Nevertheless, testing with other mufflers that were held tightly to the barrel showed no degradation of the dispersion pattern. Further testing is needed with a muffler tightly held on the barrel.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | DTIC Technical Reports |
| subjects | ACOUSTIC ATTENUATION Acoustics AUTOMATIC WEAPONS BFV(BRADLEY FIGHTING VEHICLES) CANNONS CHAIN GUNS COMBAT VEHICLES DEGRADATION DISPERSING GERMANY(EAST AND WEST) GTA(GERMAN TRAINING AREAS) GUN BARREL ATTACHMENTS Guns IMPULSE NOISE M-242 GUNS(25 MM) MUFFLERS NOISE NOISE REDUCTION PATTERNS PERFORATION PROJECTILES PROTOTYPES REQUIREMENTS TRAINING |
| title | A General Purpose Prototype Muffler for the Bradley Fighting Vehicle 25-mm Automatic Cannon Fitted with Standard Barrel |
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