Airfield Noise Ears Part II U Kelly Hudson ways ear-responsible IN PART May 1997 MA discussed damage human auditory process hearing primary focus concerned engine noise damage peripheral inner ear auditory system resulting sensorineural hearing loss nerve damage can prevent hearing damage several options can 1 nothing continue wear down hearing 2 Quit hobby stay away airfields 3 Wait quieter engines 4 Trying hearing protection best method reduction prevent noise generation source possible next desirable method hearing protection Handbook Clinical Audiology 4th Edition Jack Katz 1994 p 548 Hearing protection proactive approach reducing damage auditory system although always 100% effective great place start Hearing protection comes sorts shapes sizes brands ratings key word buying attenuationthe ability regulate intensity levels weaken signal decrease its amplitude much sound hearing protectors dampen out effectively reduce amount noise entering ear Environmental Protection Agency EPA Occupational Safety Health Administration OSHA have term effective noise reduction Noise Reduction Rating NRR required bonafide hearing protectors higher rating better attenuation September 1997 55 Simply Bestr GBG Industries Inc PO Box 650 Elgin TX 78621 512-285-9595 Fax 512-285-9400 E-mail MP421@aolcom iIIn protection provided auditory system Ear protectors come two forms earmuffs earplugs Earmuffs commonly referred Mickey Mouse Ears fit over entire outer ear form air seal entire circumference ear canal blocked muffs generally held place expandable adjustable band fits over head wearing type sound protector remember seal must tight complete Long hair glasses other items near ear will allow complete seal sound protector becomes ineffective second form sound protection earplug Earplugs small soft inserts fit outer ear canal available variety shapes sizes fit individual ear canals can custommade Since earplugs inserted ear canal very important fit snugly around entire circumference canal Improperly fitted plugs leak dirty worn-out will seal therefore will effective What considered effective hearing protection know permanent damage nerves will occur above 90dB Generally speaking louder noise shorter duration noise exposure required hearing protection damage auditory nerves Part case made model aviation airfield noise routinely exceeds 90dB Therefore hearing protection highest NRR should utilized Examples product approximate noise reduction Earmuffs15-3OdB NRR Earplugsl 5-30dB NRR Simultaneous use Earplugs Earmuffs add 10-15dB NRR Cotton stuffed ears 7dB NRR old soldiers out used use cigarette filters ammo casings hearing protection dont want know Assume airfield pit area sound level measured approximately 100dB Wearing earmuffs earplugs would probably suffice what happens around jet engines tip charts well above 120dB advisable wear combination earmuffs earplugs should reduce noise level ears about 25dB Know situation wear appropriate noise protection What about cost consideration should given high priority Remember once hearing damaged lost cannot buy back Hearing protection can generally purchased stores handle outdoor engine-powered equipment hunting supplies guns Specialists such 54 Model Aviation RMASTER Fuel inside Visit us http//wwwaero-sportscom/powermaster rubber band powered Warbird series featuring replicas theHigh Performance rubber band greatest fighters historypowered models setting standard rubber band powered fun Th quality rubber band powered models gliders wit unparalleled Check local hobby toy store find entire line Funcraft Planes Funcraft Planes Boynton Beach Florida certified hearing instrument dealers Ear Nose Throat ENT Clinics Audiologist Hearing Instrument Specialist will also provide hearing protectors Most earmuffs will retail less $20 Generic earplugs run $5-b custom-fit ear plugs will cost upwards $50-80 purchasing hearing protection always look highest NRR can get Remember noise exposure cumulative So noise home play work must counted total exposure during day maximum allowable amount noise job followed exposure noisy lawnmower loud music will definitely exceed safe daily limit Just imagine what hour model aviation engine run-up would add cumulative daily total Can function airfield wearing hearing protection answer definite yes may have make some small changes way operate airfield some techniques have experimented operating own aircraft always try wear some form hearing protection pit area use either muff plug-style hearing protectors does seem hinder ability hear engine adjustments pitch changes pit area Hearing protectors designed allow low frequencies ear filtering out loud high frequencies can cause damage high frequencies hearing spectrum generally first affected exposed damaging noise wearing hearing protection can hear engine/propeller pitch change performing pit-area adjustments Once flightline run-up completed taxi aircraft takeoff position stop aircraft remove hearing protectors continue fly generally appropriate leave earmuffs around neck Earplugs other hand much smaller require little attention detail such time remove reinsert Some earplugs attached other long nylon string allowing hang around neck flying Once flight complete land aircraft taxi clear runway stop aircraft don earmuffs taxi pit area After shutdown remove hearing protection think can see hearing protection limiting factor big hassle sport Experiment try several types use ones like Remember old TV commercial Pay now pay later Fly safely call ear responsible y Hudson Hearing Instrument Specialist 101 E Brunson St #200 Enterprise AL 36330 E-Z BILT WWII Pedal Planes will have much fun building 3-6 year old will have flying Kit includes full size patterns complete instructions color photo list ready made parts included Kits $2000 total Specify plan wanted Kits available-P-38 P-40 F4UP-51F3F-1 Brochure $100 SASE Flight Line Toys ox 3484 Springfield Sky Harbor RG Presents Mike Del Pontes Reviution V-Tail 0-500 Fits 40 size motors Pilots choice NATs four years running Holds numerous Q-51J0 Pylon records Standard equipment top pilots like Chip Hyde Richard Verano Mark Parker & Tony Lopez Hand crafted custom built ARF Light weight pre-built fuselage piece sheeted wing epoxy carbon fiber reinforcing hand select weigh piece balsa ensure 35 lbs airplane Predictable racing plane yet stable docile sport plane Proven race winning building set up details included $13500 ping Modified p-51 Series September 1997 55 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01 Adj Flash Nay L ghts 9V NEW 94 span w/ wing light conn $2995 RAM 02 Strobe Light 9V adjustable flash rate 1995 RAM 03 Landing Li9hts 48V receiver controlled 3995 RAM 04 Mars Rotating Beacon 9V adjustable rate .. 1995 RAM 06 Sky Lights 18 Li9ht Set 72-9V 94 best way fly night 2995 RAM 14 Big Airplane Navi9ation Ligh 9V 168 span non flashing 95 RAM 15 Non Flash Nay Lights 9V NEW 94 span w/ wing light conn 1495 RAM 16 Econo Landing Lights 9V servo controlled brightest 1995 RAM 23 Real Strobe Li9ht 3V brightest 2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALER SEND STAMPED ENVELOPE FOR RAM INFO unavaiiable ocaty send check money order fuii credit card info cost tern pius $400 l$5O0 foreign immediate shipment inciude fuii address U PS Sony no c 00 m 229B E Rollins Rd d Lake Beach IL 60073 MO 65808 True Scale Ootiioe 60 SiLo e 0 riywuuo UUII1lUC[IUII ile ueniyliou lul 1 YS 140 Wing Cares r Canopy plus ABS cowl Scoop Fobaust Rolled Plans ls Available le Racing/Sport Plane e Warbird Racing Assaciatior
Edition: Model Aviation - 1997/09
Page Numbers: 53, 54, 55
Edition: Model Aviation - 1997/09
Page Numbers: 53, 54, 55
Airfield Noise Ears Part II U Kelly Hudson ways ear-responsible IN PART May 1997 MA discussed damage human auditory process hearing primary focus concerned engine noise damage peripheral inner ear auditory system resulting sensorineural hearing loss nerve damage can prevent hearing damage several options can 1 nothing continue wear down hearing 2 Quit hobby stay away airfields 3 Wait quieter engines 4 Trying hearing protection best method reduction prevent noise generation source possible next desirable method hearing protection Handbook Clinical Audiology 4th Edition Jack Katz 1994 p 548 Hearing protection proactive approach reducing damage auditory system although always 100% effective great place start Hearing protection comes sorts shapes sizes brands ratings key word buying attenuationthe ability regulate intensity levels weaken signal decrease its amplitude much sound hearing protectors dampen out effectively reduce amount noise entering ear Environmental Protection Agency EPA Occupational Safety Health Administration OSHA have term effective noise reduction Noise Reduction Rating NRR required bonafide hearing protectors higher rating better attenuation September 1997 55 Simply Bestr GBG Industries Inc PO Box 650 Elgin TX 78621 512-285-9595 Fax 512-285-9400 E-mail MP421@aolcom iIIn protection provided auditory system Ear protectors come two forms earmuffs earplugs Earmuffs commonly referred Mickey Mouse Ears fit over entire outer ear form air seal entire circumference ear canal blocked muffs generally held place expandable adjustable band fits over head wearing type sound protector remember seal must tight complete Long hair glasses other items near ear will allow complete seal sound protector becomes ineffective second form sound protection earplug Earplugs small soft inserts fit outer ear canal available variety shapes sizes fit individual ear canals can custommade Since earplugs inserted ear canal very important fit snugly around entire circumference canal Improperly fitted plugs leak dirty worn-out will seal therefore will effective What considered effective hearing protection know permanent damage nerves will occur above 90dB Generally speaking louder noise shorter duration noise exposure required hearing protection damage auditory nerves Part case made model aviation airfield noise routinely exceeds 90dB Therefore hearing protection highest NRR should utilized Examples product approximate noise reduction Earmuffs15-3OdB NRR Earplugsl 5-30dB NRR Simultaneous use Earplugs Earmuffs add 10-15dB NRR Cotton stuffed ears 7dB NRR old soldiers out used use cigarette filters ammo casings hearing protection dont want know Assume airfield pit area sound level measured approximately 100dB Wearing earmuffs earplugs would probably suffice what happens around jet engines tip charts well above 120dB advisable wear combination earmuffs earplugs should reduce noise level ears about 25dB Know situation wear appropriate noise protection What about cost consideration should given high priority Remember once hearing damaged lost cannot buy back Hearing protection can generally purchased stores handle outdoor engine-powered equipment hunting supplies guns Specialists such 54 Model Aviation RMASTER Fuel inside Visit us http//wwwaero-sportscom/powermaster rubber band powered Warbird series featuring replicas theHigh Performance rubber band greatest fighters historypowered models setting standard rubber band powered fun Th quality rubber band powered models gliders wit unparalleled Check local hobby toy store find entire line Funcraft Planes Funcraft Planes Boynton Beach Florida certified hearing instrument dealers Ear Nose Throat ENT Clinics Audiologist Hearing Instrument Specialist will also provide hearing protectors Most earmuffs will retail less $20 Generic earplugs run $5-b custom-fit ear plugs will cost upwards $50-80 purchasing hearing protection always look highest NRR can get Remember noise exposure cumulative So noise home play work must counted total exposure during day maximum allowable amount noise job followed exposure noisy lawnmower loud music will definitely exceed safe daily limit Just imagine what hour model aviation engine run-up would add cumulative daily total Can function airfield wearing hearing protection answer definite yes may have make some small changes way operate airfield some techniques have experimented operating own aircraft always try wear some form hearing protection pit area use either muff plug-style hearing protectors does seem hinder ability hear engine adjustments pitch changes pit area Hearing protectors designed allow low frequencies ear filtering out loud high frequencies can cause damage high frequencies hearing spectrum generally first affected exposed damaging noise wearing hearing protection can hear engine/propeller pitch change performing pit-area adjustments Once flightline run-up completed taxi aircraft takeoff position stop aircraft remove hearing protectors continue fly generally appropriate leave earmuffs around neck Earplugs other hand much smaller require little attention detail such time remove reinsert Some earplugs attached other long nylon string allowing hang around neck flying Once flight complete land aircraft taxi clear runway stop aircraft don earmuffs taxi pit area After shutdown remove hearing protection think can see hearing protection limiting factor big hassle sport Experiment try several types use ones like Remember old TV commercial Pay now pay later Fly safely call ear responsible y Hudson Hearing Instrument Specialist 101 E Brunson St #200 Enterprise AL 36330 E-Z BILT WWII Pedal Planes will have much fun building 3-6 year old will have flying Kit includes full size patterns complete instructions color photo list ready made parts included Kits $2000 total Specify plan wanted Kits available-P-38 P-40 F4UP-51F3F-1 Brochure $100 SASE Flight Line Toys ox 3484 Springfield Sky Harbor RG Presents Mike Del Pontes Reviution V-Tail 0-500 Fits 40 size motors Pilots choice NATs four years running Holds numerous Q-51J0 Pylon records Standard equipment top pilots like Chip Hyde Richard Verano Mark Parker & Tony Lopez Hand crafted custom built ARF Light weight pre-built fuselage piece sheeted wing epoxy carbon fiber reinforcing hand select weigh piece balsa ensure 35 lbs airplane Predictable racing plane yet stable docile sport plane Proven race winning building set up details included $13500 ping Modified p-51 Series September 1997 55 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01 Adj Flash Nay L ghts 9V NEW 94 span w/ wing light conn $2995 RAM 02 Strobe Light 9V adjustable flash rate 1995 RAM 03 Landing Li9hts 48V receiver controlled 3995 RAM 04 Mars Rotating Beacon 9V adjustable rate .. 1995 RAM 06 Sky Lights 18 Li9ht Set 72-9V 94 best way fly night 2995 RAM 14 Big Airplane Navi9ation Ligh 9V 168 span non flashing 95 RAM 15 Non Flash Nay Lights 9V NEW 94 span w/ wing light conn 1495 RAM 16 Econo Landing Lights 9V servo controlled brightest 1995 RAM 23 Real Strobe Li9ht 3V brightest 2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALER SEND STAMPED ENVELOPE FOR RAM INFO unavaiiable ocaty send check money order fuii credit card info cost tern pius $400 l$5O0 foreign immediate shipment inciude fuii address U PS Sony no c 00 m 229B E Rollins Rd d Lake Beach IL 60073 MO 65808 True Scale Ootiioe 60 SiLo e 0 riywuuo UUII1lUC[IUII ile ueniyliou lul 1 YS 140 Wing Cares r Canopy plus ABS cowl Scoop Fobaust Rolled Plans ls Available le Racing/Sport Plane e Warbird Racing Assaciatior
Edition: Model Aviation - 1997/09
Page Numbers: 53, 54, 55
Airfield Noise Ears Part II U Kelly Hudson ways ear-responsible IN PART May 1997 MA discussed damage human auditory process hearing primary focus concerned engine noise damage peripheral inner ear auditory system resulting sensorineural hearing loss nerve damage can prevent hearing damage several options can 1 nothing continue wear down hearing 2 Quit hobby stay away airfields 3 Wait quieter engines 4 Trying hearing protection best method reduction prevent noise generation source possible next desirable method hearing protection Handbook Clinical Audiology 4th Edition Jack Katz 1994 p 548 Hearing protection proactive approach reducing damage auditory system although always 100% effective great place start Hearing protection comes sorts shapes sizes brands ratings key word buying attenuationthe ability regulate intensity levels weaken signal decrease its amplitude much sound hearing protectors dampen out effectively reduce amount noise entering ear Environmental Protection Agency EPA Occupational Safety Health Administration OSHA have term effective noise reduction Noise Reduction Rating NRR required bonafide hearing protectors higher rating better attenuation September 1997 55 Simply Bestr GBG Industries Inc PO Box 650 Elgin TX 78621 512-285-9595 Fax 512-285-9400 E-mail MP421@aolcom iIIn protection provided auditory system Ear protectors come two forms earmuffs earplugs Earmuffs commonly referred Mickey Mouse Ears fit over entire outer ear form air seal entire circumference ear canal blocked muffs generally held place expandable adjustable band fits over head wearing type sound protector remember seal must tight complete Long hair glasses other items near ear will allow complete seal sound protector becomes ineffective second form sound protection earplug Earplugs small soft inserts fit outer ear canal available variety shapes sizes fit individual ear canals can custommade Since earplugs inserted ear canal very important fit snugly around entire circumference canal Improperly fitted plugs leak dirty worn-out will seal therefore will effective What considered effective hearing protection know permanent damage nerves will occur above 90dB Generally speaking louder noise shorter duration noise exposure required hearing protection damage auditory nerves Part case made model aviation airfield noise routinely exceeds 90dB Therefore hearing protection highest NRR should utilized Examples product approximate noise reduction Earmuffs15-3OdB NRR Earplugsl 5-30dB NRR Simultaneous use Earplugs Earmuffs add 10-15dB NRR Cotton stuffed ears 7dB NRR old soldiers out used use cigarette filters ammo casings hearing protection dont want know Assume airfield pit area sound level measured approximately 100dB Wearing earmuffs earplugs would probably suffice what happens around jet engines tip charts well above 120dB advisable wear combination earmuffs earplugs should reduce noise level ears about 25dB Know situation wear appropriate noise protection What about cost consideration should given high priority Remember once hearing damaged lost cannot buy back Hearing protection can generally purchased stores handle outdoor engine-powered equipment hunting supplies guns Specialists such 54 Model Aviation RMASTER Fuel inside Visit us http//wwwaero-sportscom/powermaster rubber band powered Warbird series featuring replicas theHigh Performance rubber band greatest fighters historypowered models setting standard rubber band powered fun Th quality rubber band powered models gliders wit unparalleled Check local hobby toy store find entire line Funcraft Planes Funcraft Planes Boynton Beach Florida certified hearing instrument dealers Ear Nose Throat ENT Clinics Audiologist Hearing Instrument Specialist will also provide hearing protectors Most earmuffs will retail less $20 Generic earplugs run $5-b custom-fit ear plugs will cost upwards $50-80 purchasing hearing protection always look highest NRR can get Remember noise exposure cumulative So noise home play work must counted total exposure during day maximum allowable amount noise job followed exposure noisy lawnmower loud music will definitely exceed safe daily limit Just imagine what hour model aviation engine run-up would add cumulative daily total Can function airfield wearing hearing protection answer definite yes may have make some small changes way operate airfield some techniques have experimented operating own aircraft always try wear some form hearing protection pit area use either muff plug-style hearing protectors does seem hinder ability hear engine adjustments pitch changes pit area Hearing protectors designed allow low frequencies ear filtering out loud high frequencies can cause damage high frequencies hearing spectrum generally first affected exposed damaging noise wearing hearing protection can hear engine/propeller pitch change performing pit-area adjustments Once flightline run-up completed taxi aircraft takeoff position stop aircraft remove hearing protectors continue fly generally appropriate leave earmuffs around neck Earplugs other hand much smaller require little attention detail such time remove reinsert Some earplugs attached other long nylon string allowing hang around neck flying Once flight complete land aircraft taxi clear runway stop aircraft don earmuffs taxi pit area After shutdown remove hearing protection think can see hearing protection limiting factor big hassle sport Experiment try several types use ones like Remember old TV commercial Pay now pay later Fly safely call ear responsible y Hudson Hearing Instrument Specialist 101 E Brunson St #200 Enterprise AL 36330 E-Z BILT WWII Pedal Planes will have much fun building 3-6 year old will have flying Kit includes full size patterns complete instructions color photo list ready made parts included Kits $2000 total Specify plan wanted Kits available-P-38 P-40 F4UP-51F3F-1 Brochure $100 SASE Flight Line Toys ox 3484 Springfield Sky Harbor RG Presents Mike Del Pontes Reviution V-Tail 0-500 Fits 40 size motors Pilots choice NATs four years running Holds numerous Q-51J0 Pylon records Standard equipment top pilots like Chip Hyde Richard Verano Mark Parker & Tony Lopez Hand crafted custom built ARF Light weight pre-built fuselage piece sheeted wing epoxy carbon fiber reinforcing hand select weigh piece balsa ensure 35 lbs airplane Predictable racing plane yet stable docile sport plane Proven race winning building set up details included $13500 ping Modified p-51 Series September 1997 55 LIGHTING SYSTEMS THE ORIGINALS. Still Best RAM 01 Adj Flash Nay L ghts 9V NEW 94 span w/ wing light conn $2995 RAM 02 Strobe Light 9V adjustable flash rate 1995 RAM 03 Landing Li9hts 48V receiver controlled 3995 RAM 04 Mars Rotating Beacon 9V adjustable rate .. 1995 RAM 06 Sky Lights 18 Li9ht Set 72-9V 94 best way fly night 2995 RAM 14 Big Airplane Navi9ation Ligh 9V 168 span non flashing 95 RAM 15 Non Flash Nay Lights 9V NEW 94 span w/ wing light conn 1495 RAM 16 Econo Landing Lights 9V servo controlled brightest 1995 RAM 23 Real Strobe Li9ht 3V brightest 2995 RAM 65 T6 Lg Scale Lighting 72-9V Comb #s 04 14 & 16 100 span 5995 SEE YOUR DEALER SEND STAMPED ENVELOPE FOR RAM INFO unavaiiable ocaty send check money order fuii credit card info cost tern pius $400 l$5O0 foreign immediate shipment inciude fuii address U PS Sony no c 00 m 229B E Rollins Rd d Lake Beach IL 60073 MO 65808 True Scale Ootiioe 60 SiLo e 0 riywuuo UUII1lUC[IUII ile ueniyliou lul 1 YS 140 Wing Cares r Canopy plus ABS cowl Scoop Fobaust Rolled Plans ls Available le Racing/Sport Plane e Warbird Racing Assaciatior
