Vervanging F-16's
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- Robert
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Study: F-35 twice as loud as F-15.
Geplukt van MSF.....
The Air Force is very quiet about a noisy fighter.
At military housing areas and base schools on Eglin Air Force Base, Fla.,
noise from F-35 Lightning II operations will be twice as loud as current
Eglin F-15 flights, reaching 83 decibels.
Off base, F-35 noise will be even louder, reaching up to 90 decibels in
civilian neighborhoods under an Eglin flight path.
All that is revealed in an environmental impact study prompted by plans to
set up the joint F-35 pilot and maintenance training school at Eglin. But the impact of the study goes beyond Eglin, as the Air Force looks to
stand up F-35 units at bases across the country. The service has not yet
decided where that would be, but is looking at Eielson Air Force Base,
Alaska; Luke Air Force Base, Ariz.; Moody Air Force Base, Ga.; Mountain Home
Air Force Base, Idaho; and Shaw Air Force Base, S.C.
Air Force officials declined to discuss the report other than to say its
findings have their attention.
“The Air Force is committed to being a good neighbor to the communities
which surround Eglin and the future installations selected for F-35 basing,”
Kathleen Ferguson, deputy assistant secretary of Air Force for
installations, said in a written statement.
“We are diligently exploring methods to mitigate the impact.” Around Eglin, much of the public’s environmental concerns center on jet
noise.
People living near the base are accustomed to the roaring jets at the base
and don’t look twice when a fighter circles for a landing or takes off at
full military power.
In fact, the seal for Okaloosa County, where Eglin is located, pictures two
airborne F-15s.
But when the Air Force issued a preliminary environmental study in June
showing an F-35’s single engine would generate more noise than the two
engines of an F-15, people started paying attention.
In the city of Valparaiso, along the north side of Eglin, civic leaders
bristled at suggestions the residents and businesses under the F-35’s flight
path should move to quieter areas.
The preliminary findings were confirmed in the environmental assessment
released by the Air Force on Oct. 10.
“At military takeoff power, noise from the F-35 is about 9 decibels higher —
or twice as loud — than an F-15C at military takeoff power,” the report
said.
The F-35 is even louder coming in for a landing. “During approach, noise
from the F-35 is about 19 decibels higher than noise from an F-15C,” the
report said. “This corresponds to the F-35 being about four times as loud as
the F-15C” when it lands.
There should be plenty of opportunities at Eglin to hear just how loud an
F-35 is. On training days, about 125 F-35s will take off and land at Eglin,
the study said.
Overall, the combination of louder engines and different flight patterns
drastically expands the areas where engine roar will reach 75 decibels and
higher.
The number of people living near Eglin exposed frequently to sound levels of
75 decibels or more would rise by more than 1,500 percent, jumping from 142
people to 2,174 people, the report said.
The study calmly noted that once sound levels exceed 75 decibels, more than
one third of the people are “high annoyed.”
Still, the new center might bring some good news: jobs. Overall, 2,146 airmen, sailors and Marines would be assigned to the training
wing, including 109 student pilots and 436 student maintainers. In addition,
180 civilians would work for the wing.
The training wing replaces the operational 33rd Fighter Wing, now phasing
out as its two squadrons of F-15s are retired or sent to other units. Regardless of the F-35 basing, Eglin would continue to be home to several
Materiel Command units, including the 46th Test Wing and Air Armament
Center, and Air Combat Command’s 53rd Wing.
The Air Force is very quiet about a noisy fighter.
At military housing areas and base schools on Eglin Air Force Base, Fla.,
noise from F-35 Lightning II operations will be twice as loud as current
Eglin F-15 flights, reaching 83 decibels.
Off base, F-35 noise will be even louder, reaching up to 90 decibels in
civilian neighborhoods under an Eglin flight path.
All that is revealed in an environmental impact study prompted by plans to
set up the joint F-35 pilot and maintenance training school at Eglin. But the impact of the study goes beyond Eglin, as the Air Force looks to
stand up F-35 units at bases across the country. The service has not yet
decided where that would be, but is looking at Eielson Air Force Base,
Alaska; Luke Air Force Base, Ariz.; Moody Air Force Base, Ga.; Mountain Home
Air Force Base, Idaho; and Shaw Air Force Base, S.C.
Air Force officials declined to discuss the report other than to say its
findings have their attention.
“The Air Force is committed to being a good neighbor to the communities
which surround Eglin and the future installations selected for F-35 basing,”
Kathleen Ferguson, deputy assistant secretary of Air Force for
installations, said in a written statement.
“We are diligently exploring methods to mitigate the impact.” Around Eglin, much of the public’s environmental concerns center on jet
noise.
People living near the base are accustomed to the roaring jets at the base
and don’t look twice when a fighter circles for a landing or takes off at
full military power.
In fact, the seal for Okaloosa County, where Eglin is located, pictures two
airborne F-15s.
But when the Air Force issued a preliminary environmental study in June
showing an F-35’s single engine would generate more noise than the two
engines of an F-15, people started paying attention.
In the city of Valparaiso, along the north side of Eglin, civic leaders
bristled at suggestions the residents and businesses under the F-35’s flight
path should move to quieter areas.
The preliminary findings were confirmed in the environmental assessment
released by the Air Force on Oct. 10.
“At military takeoff power, noise from the F-35 is about 9 decibels higher —
or twice as loud — than an F-15C at military takeoff power,” the report
said.
The F-35 is even louder coming in for a landing. “During approach, noise
from the F-35 is about 19 decibels higher than noise from an F-15C,” the
report said. “This corresponds to the F-35 being about four times as loud as
the F-15C” when it lands.
There should be plenty of opportunities at Eglin to hear just how loud an
F-35 is. On training days, about 125 F-35s will take off and land at Eglin,
the study said.
Overall, the combination of louder engines and different flight patterns
drastically expands the areas where engine roar will reach 75 decibels and
higher.
The number of people living near Eglin exposed frequently to sound levels of
75 decibels or more would rise by more than 1,500 percent, jumping from 142
people to 2,174 people, the report said.
The study calmly noted that once sound levels exceed 75 decibels, more than
one third of the people are “high annoyed.”
Still, the new center might bring some good news: jobs. Overall, 2,146 airmen, sailors and Marines would be assigned to the training
wing, including 109 student pilots and 436 student maintainers. In addition,
180 civilians would work for the wing.
The training wing replaces the operational 33rd Fighter Wing, now phasing
out as its two squadrons of F-15s are retired or sent to other units. Regardless of the F-35 basing, Eglin would continue to be home to several
Materiel Command units, including the 46th Test Wing and Air Armament
Center, and Air Combat Command’s 53rd Wing.
Robert
-
- Scramble Senior
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- Joined: 17 Nov 2005, 12:37
- Location: Zoetermeer
ehusmann wrote:Ik denk dat er nu twee sleutellanden zijn die dit teweeg kunnen brengen, of niet: Engeland en Nederland.kiwi wrote:Ik zeg: de val van het JSF project zit er aan te komen. In ieder geval buiten de US dan.
Engeland omdat ze als grootste bondgenoot van de VS natuurlijk wel de spil zijn. Als Engeland al niet eens genoeg inzicht krijgt in de ontwikkeling, hoe zit dat dan met de andere landen?
Nederland omdat we als grootste van de kleintjes (België, Denemarken, Noorwegen en op den duur Portugal) ook een voorbeeld zijn. Als wij niet voor de JSF kiezen zie ik al die andere kleine landjes ook voor iets anders kiezen.
>Pim Fortuyn moest er zelfs voor uit de weg worden geruimd (die wilde de JSF-deelname al afblazen...)
De komende tijd wordt in elk geval spannend, ook vanwege de verkiezingen in de VS. Ik weet de standpunten van de kandidaten niet op dit vlak, maar ik kan me voorstellen dat het wel zal uitmaken wie er wint....
Erwin
-
- Scramble Master
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Even terug naar die reporter uitzending: daar werd zelfs gezegd dat Fortuyn VOOR de JSF was. Het is dus niet onbewezen, het tegendeel is bewezen. Maar er zijn na die moord wel meer mensen die onzinnige dingen hebben gezegd over wat P.F. zou hebben gewild, terwijl het tegendeel op schrift stond. (hij zou bijvoorbeeld RTM willen sluiten, volgens een bepaalde groep Rotterdammers, ondanks de uitspraken dat alle grenzen aan Zestienhoven moesten worden afgeschaft). Maar OK: maar weerehusmann wrote:Kunnen we dat soort complottheoriën buiten deze discussie houden? Dit heeft hier niets mee te maken en is volkomen onbewezen.Flying Flea Builder wrote:>Pim Fortuyn moest er zelfs voor uit de weg worden geruimd (die wilde de JSF-deelname al afblazen...)
Erwin
De Zamboni heeft kramp in zijn achterwiel
Jan Maarten Smeets, Heerenveen 31 oktober 2009
Jan Maarten Smeets, Heerenveen 31 oktober 2009
Re: Study: F-35 twice as loud as F-15.
Kleine verbetering op dit artikel. Een verhoging van 9 dB is niet een verdubbeling van het geluid, maar een verACHTvoudiging (elke stap van 3dB is een verdubbeling van de geluidsinstensiteit) en een verhoging van 19dB houdt dus een vermenigvuldiging met meer dan factor 64 in (!!).. Vooral dat eerste vind ik een groot probleem, het geluid van een F15 op full military is namelijk al immens, kun je nagaan dat je dat keer 3 doet. Approach vind ik niet zo boeiend want het geluid van een landend toestel is veeeeel lager dan een toestel op full power, maar toch is een factor 64 zorgwekkend..Robert wrote:Geplukt van MSF.....
The Air Force is very quiet about a noisy fighter.
At military housing areas and base schools on Eglin Air Force Base, Fla.,
noise from F-35 Lightning II operations will be twice as loud as current
Eglin F-15 flights, reaching 83 decibels.
Off base, F-35 noise will be even louder, reaching up to 90 decibels in
civilian neighborhoods under an Eglin flight path.
All that is revealed in an environmental impact study prompted by plans to
set up the joint F-35 pilot and maintenance training school at Eglin. But the impact of the study goes beyond Eglin, as the Air Force looks to
stand up F-35 units at bases across the country. The service has not yet
decided where that would be, but is looking at Eielson Air Force Base,
Alaska; Luke Air Force Base, Ariz.; Moody Air Force Base, Ga.; Mountain Home
Air Force Base, Idaho; and Shaw Air Force Base, S.C.
Air Force officials declined to discuss the report other than to say its
findings have their attention.
“The Air Force is committed to being a good neighbor to the communities
which surround Eglin and the future installations selected for F-35 basing,”
Kathleen Ferguson, deputy assistant secretary of Air Force for
installations, said in a written statement.
“We are diligently exploring methods to mitigate the impact.” Around Eglin, much of the public’s environmental concerns center on jet
noise.
People living near the base are accustomed to the roaring jets at the base
and don’t look twice when a fighter circles for a landing or takes off at
full military power.
In fact, the seal for Okaloosa County, where Eglin is located, pictures two
airborne F-15s.
But when the Air Force issued a preliminary environmental study in June
showing an F-35’s single engine would generate more noise than the two
engines of an F-15, people started paying attention.
In the city of Valparaiso, along the north side of Eglin, civic leaders
bristled at suggestions the residents and businesses under the F-35’s flight
path should move to quieter areas.
The preliminary findings were confirmed in the environmental assessment
released by the Air Force on Oct. 10.
“At military takeoff power, noise from the F-35 is about 9 decibels higher —
or twice as loud — than an F-15C at military takeoff power,” the report
said.
The F-35 is even louder coming in for a landing. “During approach, noise
from the F-35 is about 19 decibels higher than noise from an F-15C,” the
report said. “This corresponds to the F-35 being about four times as loud as
the F-15C” when it lands.
There should be plenty of opportunities at Eglin to hear just how loud an
F-35 is. On training days, about 125 F-35s will take off and land at Eglin,
the study said.
Overall, the combination of louder engines and different flight patterns
drastically expands the areas where engine roar will reach 75 decibels and
higher.
The number of people living near Eglin exposed frequently to sound levels of
75 decibels or more would rise by more than 1,500 percent, jumping from 142
people to 2,174 people, the report said.
The study calmly noted that once sound levels exceed 75 decibels, more than
one third of the people are “high annoyed.”
Still, the new center might bring some good news: jobs. Overall, 2,146 airmen, sailors and Marines would be assigned to the training
wing, including 109 student pilots and 436 student maintainers. In addition,
180 civilians would work for the wing.
The training wing replaces the operational 33rd Fighter Wing, now phasing
out as its two squadrons of F-15s are retired or sent to other units. Regardless of the F-35 basing, Eglin would continue to be home to several
Materiel Command units, including the 46th Test Wing and Air Armament
Center, and Air Combat Command’s 53rd Wing.
jet noise: the sound of freedom
Indien de F-35A uit eindelijk meer geluid produceerd als de huidige F-16 denk ik niet dat (onze) politiek de boel (daarom) afblaast.
Wellicht is er wat te compenseren met reduced power take-offs en noise routings (in vredes tijd, mits de belading en omstandigheden het toelaten) om de bewoonde gebieden enigzins te ontzien daar waar mogelijk.
Voordeel van veel pokke herrie van een F-35 bij een Afghanistan type missie is het effect op de tegenstanders bij een low level overshoot.
Indien de F-35A uit eindelijk meer geluid produceerd als de huidige F-16 denk ik niet dat (onze) politiek de boel (daarom) afblaast.
Wellicht is er wat te compenseren met reduced power take-offs en noise routings (in vredes tijd, mits de belading en omstandigheden het toelaten) om de bewoonde gebieden enigzins te ontzien daar waar mogelijk.
Voordeel van veel pokke herrie van een F-35 bij een Afghanistan type missie is het effect op de tegenstanders bij een low level overshoot.
JSF maakt veel meer lawaai dan voorgangers
DEN HAAG - De nieuwe Joint Strike Fighter (JSF) maakt veel meer geluid dan andere gevechtsvliegtuigen zoals de F-15 en F-16. Dat blijkt uit een recent rapport van de Amerikaanse luchtmacht naar de milieu-effecten van de F-35 Lightning II, zoals de JSF eigenlijk heet, voor de omgeving.
Onder personeel op de luchtmachtbasis Eglin en bij de omwonenden is onrust ontstaan over het extra geluid, zo meldde de Airforce Times maandag . De F-35 heeft maar één motor, maar zou toch twee keer zoveel geluid produceren als de twee motoren van de F-15.
De Amerikaanse luchtmacht denkt nog na over de bases waar de F-35 getest en gebruikt gaat worden. Op de basis in Eglin zou het toestel bij het opstijgen 83 decibel halen en daarna boven de woonwijk nog 7 decibel meer halen.
De Tweede Kamer praat donderdag over het JSF-project waarin Nederland al enkele jaren deelneemt.
Telegraaf, ma 27 okt 2008, 19:17
DEN HAAG - De nieuwe Joint Strike Fighter (JSF) maakt veel meer geluid dan andere gevechtsvliegtuigen zoals de F-15 en F-16. Dat blijkt uit een recent rapport van de Amerikaanse luchtmacht naar de milieu-effecten van de F-35 Lightning II, zoals de JSF eigenlijk heet, voor de omgeving.
Onder personeel op de luchtmachtbasis Eglin en bij de omwonenden is onrust ontstaan over het extra geluid, zo meldde de Airforce Times maandag . De F-35 heeft maar één motor, maar zou toch twee keer zoveel geluid produceren als de twee motoren van de F-15.
De Amerikaanse luchtmacht denkt nog na over de bases waar de F-35 getest en gebruikt gaat worden. Op de basis in Eglin zou het toestel bij het opstijgen 83 decibel halen en daarna boven de woonwijk nog 7 decibel meer halen.
De Tweede Kamer praat donderdag over het JSF-project waarin Nederland al enkele jaren deelneemt.
Telegraaf, ma 27 okt 2008, 19:17
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wel apart, ik heb de JSF in take-off gezien, en het was niet zozeer de herrie, maar wel het rare geluid wat me opviel... er zit een soort lage brom/zoem in die kist die ervoor zorgde dat de lokale spotters op Ft Worth hem "hoover"noemden.. (naar een bekende amerikaanse stofzuiger)
I have never drunk milk, and I never will . . . .
- Thijs
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Zuid Korea heeft ook laatst fabrieksnieuwe F-15's afgeleverd gekregen.ehusmann wrote:Maar vallen inmiddels van ellende uit elkaar.... lijkt me geen optie meer.kiwi wrote:Jammer dat de KLu eigenlijk geen Strike Eagles wil overwegen. Die zijn toch ook aardig multi-role of denk ik nu te simpel?
Erwin
Voordeel F-15, snellere levering, kans op kinderziekten kleiner.
Nadeel, geen compensatieorders (neem ik aan), mist prestige, mist technologische ontwikkeling (kennisontwikkeling)
Assume makes an ASS of U and ME.