warreng24
Posts: 573
Joined: Fri Nov 18, 2005 9:38 am

Stage 3 Noise

Sun Nov 27, 2005 9:43 am

What exactly defines Stage 3 Noise?

Is there a listing of what A/C fall under Stage 3?
What about Stage 2 and 1 A/C?

When will their be a Stage 4? How would that affect existing A/C?

Will there be Stage 4 hushkits available?
 
greasespot
Posts: 2955
Joined: Sat Apr 24, 2004 10:48 am

RE: Stage 3 Noise

Sun Nov 27, 2005 10:09 am

Stage 3 is a decibel noise level that is measured on take off and landing. I believe it must be less than 65 decibels (going from memory)

There is no listing of stage 3 A/C because theoretically any aircraft could fall over stage 3 with the right conditions.

mostly they are older a/c like DC 9's and 727's...737-200 etc....
Stage 4 is comming and it will probably mean those aircraft will be grounded at most of the worlds airports unless they gain an excemption.

Yes there are stage 4 hush kits avaliable. One of the first is for the MD80 series. there will not be one for older a/c as the airplane does not have enough value to up grade

GS
Sometimes all you can do is look them in the eye and ask " how much did your mom drink when she was pregnant with you?"
 
BR715-A1-30
Posts: 6525
Joined: Thu May 30, 2002 9:30 am

RE: Stage 3 Noise

Sun Nov 27, 2005 1:51 pm

The Boeing 717 has Stage IV engines, and even meets proposed Stage V requirements. The MD80 meets Stage III, but would require a Stage IV upgrade... John Travolta would have to re-engine his 707 unless he got an exemption.
Puhdiddle
 
wdleiser
Posts: 865
Joined: Thu Apr 22, 2004 9:32 am

RE: Stage 3 Noise

Sun Nov 27, 2005 3:07 pm

These sound requirements blow.
People near airports knew what they were getting into. Always complaining about everything. How about we deal with real problems such as those presented by them stupid wanna be racecar honda civics with coffee can mufflers sounding like constipated weasles

[Edited 2005-11-27 07:09:37]
 
timz
Posts: 6100
Joined: Fri Sep 17, 1999 7:43 am

RE: Stage 3 Noise

Mon Nov 28, 2005 7:27 am

Somewhere the FAA website spells out what Stage 3 means. There's takeoff noise, approach noise, and sideline noise; each is measured by a noise meter at a specified distance from the runway. The allowed noise increases with increasing aircraft weight, to some extent. An aircraft might not be Stage 3 at full weight, but at lesser weight it climbs faster, so it's farther from the meter and might qualify.
 
timz
Posts: 6100
Joined: Fri Sep 17, 1999 7:43 am

RE: Stage 3 Noise

Mon Nov 28, 2005 10:09 am

For starters you can go to

http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&tpl=%2Findex.tpl

and choose Title 14, then Part 36. Appendix A and B are what you need.

[Edited 2005-11-28 02:10:48]
 
Lemurs
Posts: 1320
Joined: Sat Mar 12, 2005 5:13 am

RE: Stage 3 Noise

Mon Nov 28, 2005 10:16 am

Quoting Wdleiser (Reply 3):
These sound requirements blow.
People near airports knew what they were getting into. Always complaining about everything. How about we deal with real problems such as those presented by them stupid wanna be racecar honda civics with coffee can mufflers sounding like constipated weasles

Nice troll, but try not to make it so obvious next time.
There are 10 kinds of people in the world; those who understand binary, and those that don't.