ORIGINAL: cyclops2
BINGO!!!
I now know why people near our fields complain.
No plane excedes the DB limit. True. Times 6 of them up there is, 6 X louder and being high up spreads the noise over the noise absorbing trees and bushes.
Duuh. How do we solve that part of the problem Boss ?
cyclops2-
The sound sources (different models) are uncorrelated. In that case, each doubling in the number of sources increases the resultant level by 3 dB, assuming the different sources are equal in level. For six sources, that works out to a resultant about 8 dB greater than each contributing source. It is important to consider this in calculating the sound levels your club site as a whole is emitting. A club noise abatement rule should include the number of models allowed to operate simultaneously.
Abel
p.s.: Re
www.nonoise.org, consider it a valued resource, even if you only view it in the "know thine enemy" sense. There is a lot of useful info in and linked to that site that can help you get along with neighbors, and if necessary to mount a defense against unreasonable ones.