Reader comments 3 Nov 14 (JPO confused about F-35 noise)

Via Don...

Don Bacon

Bogdan in his desperation recently released some BS on F-35 noise, without backup of course. Here it is, along with some truth.
JPO, Oct 31
F-35 Noise “Good to Go”
Studies of F-35 noise relative to legacy fighters will be released Friday, and will show that “on the ground, at full military power,” which is full power without afterburner, the F-35 is “actually quieter, by a little bit” than legacy aircraft such as the F-15, F/A-18, and F-16, F-35 Program Executive Officer Lt. Gen. Christopher Bogdan said Thursday.
Air Force, Oct 26, 2008
Study: F-35 twice as loud as F-15 -- 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.
Navy, Apr 9, 2014
F-35 forcing Navy to develop new hearing protection for flight deck crews
The Navy is developing new hearing protection for flight deck crews to block out the roar of new and noisy jets.
The F-35 Lightning II, which clocks in at a thundering 152 decibels, is forcing the service to come up with better hearing protection for sailors.
Eglin, May 11, 2009
F-35: I am Fighter, Hear Me Roar
In response to claims from Lockheed Martin that the F-35 was no noisier than F-16s or F-15s (see March 11/09 entry), Valparaiso [near Eglin AFB] resident Bob Webb, an audio professional who is retired after 30 years working at Eglin AFB, recorded F-35s, F-16s, and F-15 landings on April 22 and 23, saving the results to his laptop while recording the decibel levels on calibrated meters.
Webb compiled the data and determined that the noise level created by a landing F-35 measures at 105-106 dB, compared with the F-16's 90 dB, and the F-15's 91 dB. These figures are slightly lower than the 19db difference in the USAF’s original environmental assessment, but a 15db difference is still about 3 times as loud.
Eglin, Oct 10, 2008
The USAF released an environmental impact report that could inflame the community debate at Eglin AFB (see Sept 30/08 entry). It says that the noise over base facilities, including housing and schools, F-35 Lightning II operations will reach 83 decibels, rising up to 90 decibels in civilian neighborhoods under an Eglin flight path. The report goes on to say that military takeoff power is about 9 decibels higher than an F-15C at military takeoff power, and 19 decibels higher during landing. With respect to perceptions of loudness external link, every 10 decibels doubles volume, so that’s about 2x as loud on takeoff and 4x as loud on landing.

Valparaiso, Dec 19, 2012
F-35 debate: The Florida town that sued the Air Force
Without support from its congressional delegation or regional officials, Valparaiso, Fla., went to court to minimize impact of fighter jet noise on residents. It succeeded.
Valparaiso, Fla., sued the Air Force over the basing of the F-35 at neighboring Eglin Air Force base in 2009, and Mayor John Arnold says the expensive suits, now settled, were successful in mitigating the impact of the fighter jet’s noise on residents.
Hill, Dec 26, 2013
F-35 fighter jets to bring extra noise to Hill AFB
SALT LAKE CITY — A fleet of new fighter jets coming to Utah’s Hill Air Force Base in 2015 will create extra noise for nearby residents, according to an Air Force report.
According to an Air Force report, the extra thrust produced by the F-35s makes them twice as loud as the F-16 jets that have been flying from the base since 1979.

Vermont, Oct 14, 2014
Realtors: F-35 noise warrants disclosures
Anticipated increases in noise from F-35 jets in parts of Chittenden County beginning in 2020 should be disclosed to property buyers, according to a regional Realtors group.
The new guidelines require a heads-up for sales in neighborhoods likely to become significantly noisier when the jets are deployed by the Vermont Air National Guard, Kathleen Sweeten, executive vice president of Williston-based Northwestern Vermont Board of Realtors, said.
F-35s are louder than the F-16s currently deployed at Burlington International Airport, according to the U.S. Air Force.
Norway, Nov 1, 2009
A report from Lockheed Martin, which makes the JSF, specifically says that the JSF will makes up to four times as much noise as our F-16, depending on whether the aircraft takes off at full power and with afterburner.
Netherlands, Oct 1, 2013
"JSF makes more noise than F-16"
The Joint Strike Fighter would when taking off four times make as much noise as the F-16.
This appears a ccording Dorpsbelang Marsum, which has long worried about the noise to be expected from a report by the U.S. Air Force.
The JSF is therefore much noisier than the Dutch Ministry of Defence has so far indicated sets Dorpsbelang Marsum.
The Ministry would have assumed that the new jet is three to six decibels louder, but that, according to the report, it is 12 decibels louder.