WHAT IS A GOOD DECIBEL LEVEL FOR A GIANT PLANE

[Michael Laggis]

Mike,
IMAC is 96db at 25ft over grass and 98 over a hard surface.  They (IMAC) were supposed to drop down 2db in 03 and then possibly 2 more db in 04.  You can read all about the IMAC Sound Task Force here.  http://www.mini-iac.com/pages/SoundTaskForce/stf.asp  I think they are still holding at the 2002 sound levels but I'm not positive.  We have a couple of guys with 40% at my club.  One has quite canisters and an Air Models 3 blade prop.  That plane is extremely quite in the air.  The other has stock mufflers and a 2 blade.  With him cutting down the throttle down with ATV he meets the sound level but it is defiantly loud on the ground and in the air.  

Michael Laggis
  ----- Original Message ----- 
  From: Garhide at aol.com 
  To: discussion at nsrca.org 
  Sent: Friday, November 28, 2003 4:39 PM
  Subject: WHAT IS A GOOD DECIBEL LEVEL FOR A GIANT PLANE


  GREETING AND HAPPY THANKSGIVING.

  A FRIEND CALL ME THAT HAS A 42 PERCENT EDGE 540 WITH A 200 SWINGING A 36 INCH PROP.

  HE WENT TO A FIELD NEAR HIM AND ONE OF THE MEMBERS SAID IT WAS TO LOUD FOR HIM. THEIR IS NO CLUB RULE AT THE FIELD. SO MY FRIEND ASKED ME TO SEE IF I COULD FIND OUT FROM SOMEONE IF THE IMAC HAS A RULE OR IF THEIR IS ANY GENERAL NUMBER THAT IS all right.

  YOUR FRIEND
  MIKE MOSS
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