[NSRCA-discussion] Noise rules

[Lance Van Nostrand]

I'm not sure if there may be a perception that measuring at 25 feet is somehow more palatable than at 10 ft.  If this is the feeling in your club then go for it.  However, I know from experience that all influences on the measured result (wind, hard/grass, fences, proximity to a covered pit echo chamber, cars, etc) are exponentially amplified with distance.  I measured the same Extra330 with a large gas engine in every way possible and found the results varied from 101-105 db.  This is a huge variation.  Upwind/downwind in about 10 mph winds is worth 2-3 db.  At 10 ft the variation was from 102-103 db.  If you have a guy with a plane near the limit he may argue your measurement result.  If you say the lmit is the highest value measured then you are really restricting some guys with loud planes to less than the nominal. If you provide leeway, then your limit is effectively raised.  It opens a can of worms.

Lance
  ----- Original Message ----- 
  From: Glen Watson 
  To: 'NSRCA Mailing List' 
  Sent: Monday, June 19, 2006 10:52 PM
  Subject: Re: [NSRCA-discussion] Noise rules


  Links below are to a RC club in the Houston market who implemented a noise standard..  My club has adopted the same standard.  In 2004 we had complaints from a nearby neighbor regarding noise.  Since implementing this noise standard we've had zero complaints.

   

  http://fortbendrc.com/

   

  http://fortbendrc.com/Field/Field%20Noiselevel.htm

   

  Regards,

   

  ~Glen

   

   

   


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  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of John Ferrell
  Sent: Monday, June 19, 2006 8:09 PM
  To: NSRCA Mailing List
  Subject: [NSRCA-discussion] Noise rules

   

  If someone out there has a set of noise rules for a general purpose RC club? Especially a set that works. 

   

  I cannot expect the masses to conform to pattern numbers, but I need something to start with. "Reasonable" does not seem to mean the same thing to every one. 

   

   

  John Ferrell    W8CCW
  "My Competition is not my enemy"
  http://DixieNC.US



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