| Re: Just quietly, the A380............ |
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Group: aus.aviation · Group Profile
Author: MeMe Date: Jul 4, 2008 13:41
"Stealth Pilot" aeroplanes.com.au> wrote in message
news:mk3s64tsisqth5j2n2j02s8m19vcjj9o37@4ax.com...> On Fri, 04 Jul 2008 16:42:02 +1000, Ned
> pizzacheeze.com> wrote:
>>>"INDEPENDENT testing of the world's first Airbus A380 commercial
>>service has shown the big plane is living up to the European
>>manufacturer's claims that it is quieter than existing jets.........
>>
>>Testing by Airservices Australia at Sydney Airport showed Singapore
>>Airlines' A380 was between 2.3 and 6.7 decibels quieter than a Boeing
>>747-400 on take-off." Steve Creedy
>> http://www.theaustralian.news.com.au/story/0,25197,23964104-23349,00.html>
>
> well you'd bloody well expect it wouldnt you. considering that there
> is 25 years of development work between the 747 and the A380.
>
> the amazing thing is that the french could only get 6.7db improvement
> with 25 years of work on the problem.
>
Is 6.7 db true? Not disputing the figures, but it must be comparitively very
quiet, as each 3db less is half the SPL. I saw it twice in Brisbane on it's
test flights 2 1/2 years ago, and it did sound nice (though it nearly took
out the chase plane filming it's daparture to Sydney with an unexptected
left turn - maintain runway heading?)
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