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Quietest/noisiest Aircraft (no S!)  
User currently offlineUTA_flyingHIGH From Tunisia, joined Oct 2001, 6495 posts, RR: 50
Posted (10 years 9 months 1 day 19 hours ago) and read 5242 times:

Out of curiosity, what are the quietest/noisiest aircraft in the following categories ?

1) Single props
2) Twin-engined GA aircraft
3) Turboprops
4) RJ's
5) Narrowbodies
6) Widebodies
7) Ventilators

UTA


Fly to live, live to fly - Air France/KLM Flying Blue Platinum, BMI Diamond Club Gold, Emirates Skywards
17 replies: All unread, jump to last
 
User currently offlineZak From Greenland, joined Sep 2003, 1993 posts, RR: 8
Reply 1, posted (10 years 9 months 1 day 19 hours ago) and read 5224 times:

1) no clue
2) no clue either
3) my bet: dash8-400Q
4) all too loud when inside the cabin
5) 757 due to the fact that they can pretty much operate at idle thrust all the way  Smile
6) 747-400
7) A340-300x (since it can not be in cat6)



10=2
User currently offlineBoeingflying31 From United States of America, joined Sep 2003, 165 posts, RR: 0
Reply 2, posted (10 years 9 months 1 day 13 hours ago) and read 5065 times:

1) Loudest I've flown was a Cessna 182
2) Cessna 310
4) I've only flown on a CRJ
5) 757
6) The most powerful plane I've flown on was the MD-11, but the loudest would probably be the A330 or the 747.
7) no clue

-bf31


User currently offlineQantasA332 From Australia, joined Dec 2003, 1500 posts, RR: 25
Reply 3, posted (10 years 9 months 1 day 9 hours ago) and read 5018 times:

With aircraft noise levels you really can't just guess -- hard dB facts are needed. And some distinction needs to be made between exterior noises footprint/intensity and interior noise levels...

As far as your #6, Boeingflying31, the A330 is definitely not the loudest widebody. I don't know if you've ever flown on one of them, but for their "genre", they're one of the quietest around...

Cheers,
QantasA332


User currently offlineSushka From United States of America, joined Nov 1999, 4784 posts, RR: 14
Reply 4, posted (10 years 9 months 1 day 9 hours ago) and read 5014 times:

Cessna 210
Cessna 310
An24
Dunno
Tu134
Il86
Dunno



Pershoyu Spravoyu Litaki!
User currently offline3lions From United States of America, joined Dec 2003, 143 posts, RR: 0
Reply 5, posted (10 years 9 months 1 day 8 hours ago) and read 4994 times:

The learjet 23 and 24 and 25 have to be the loudest.
Have you ever marshalled one out.


User currently offlineCorey07850 From United States of America, joined Feb 2004, 2528 posts, RR: 5
Reply 6, posted (10 years 9 months 1 day 8 hours ago) and read 4979 times:

I'd have to agree with the Lear 23... I've heard it has the same engines as a T-38 fighter?



User currently offlineMNeo From Bulgaria, joined Mar 2004, 776 posts, RR: 1
Reply 7, posted (10 years 9 months 1 day 7 hours ago) and read 4977 times:

4) the BEa 146 has to be the quietest RJ there.
6) the A340-200 is also a very quiet plane



Powered by Maina
User currently offlineTimz From United States of America, joined Sep 1999, 6903 posts, RR: 7
Reply 8, posted (10 years 9 months 1 day 3 hours ago) and read 4936 times:

Can't figure out whether the questioner is asking about cabin noise or noise on the ground.

User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 9, posted (10 years 9 months 1 day 3 hours ago) and read 4938 times:

The older DH or Hawker 125 made more noise taxiing than many planes do taking off. I don't think dB is the entire story. There is dB at a given frequency that makes them offensive to humans.

For light twins, the BE-50 twin bonanza was pretty damn loud.



Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 10, posted (10 years 9 months 1 day 3 hours ago) and read 4924 times:

Assuming we're talking about loudest/quietest based upon being -outside- the aircraft, I'd have to opine the loudest narrowbody is/was the BAC-111. I thought is was louder than the Concorde, but that's just me...

User currently offlineB2707SST From United States of America, joined Apr 2003, 1371 posts, RR: 59
Reply 11, posted (10 years 9 months 1 day ago) and read 4894 times:

It depends which noise standard you use: community noise three miles from the airport after takeoff ("takeoff "), airport noise 1500 feet from the runway at takeoff ("sideline"), or community noise under the approach path ("approach").

According to the FAA's noise figures, the quietest a/c in each category is:

Private/Biz Jets:
- Takeoff: Cessna 560 Encore (70.3 dB)
- Sideline: Aerospatiale SN601 Corvette (81.0 dB)
- Landing: Cessna S550 Citation S/II (85.1 dB)

Regional Jets:
- Takeoff: Fairchild-Dornier 328JET-300 (76.1 dB)
- Sideline: Bombardier CL-600-2B19 CRJ-200 (82.2 dB)
- Landing: Fokker F70 (87.7 dB)

Narrowbody Airliners:
- Takeoff: McDonnell-Douglas MD-90-30 (77.2 dB)
- Sideline: Boeing 737-500 (88.2 dB)
- Landing: Boeing 717-200 (91.3 dB) *
* if you consider the 717 an RJ, the next narrowbody is the MD-90-30 (91.7 dB)

Widebody Airliners:
- Takeoff: Boeing 767-300ER (81.5 dB)
- Sideline: Airbus A300B1 (90.7 dB)
- Landing: Boeing 767-200 (95.7 dB)

--B2707SST



Keynes is dead and we are living in his long run.
User currently offlineQantasA332 From Australia, joined Dec 2003, 1500 posts, RR: 25
Reply 12, posted (10 years 9 months 1 day ago) and read 4888 times:

Thanks very much, B2707SST, for finally posting an actual dB-level comparison... Out of curiosity, where'd you get that data?

Cheers,
QantasA332



User currently offlineB2707SST From United States of America, joined Apr 2003, 1371 posts, RR: 59
Reply 13, posted (10 years 9 months 22 hours ago) and read 4867 times:

The FAA's Office of Environment and Energy has noise data for all US and foreign certificated aircraft. I looked up jet aircraft, but they also have data for transport and GA prop planes and helicopters:

http://www.aee.faa.gov/noise/AC_36-1H.htm

Unfortunately, I've never been able to find data on cabin noise levels. That would be interesting to see.

The same data for noisiest airliners (guess which big jet wins!):

Private/Biz Jets:
- Takeoff: Sabreliner 60 (95 dB)
- Sideline: Learjet 24D (104 dB)
- Landing: BAe HS 125-1B (104.8 dB)

Regional Jets:
- Takeoff: Fokker F28 MK4000 (92.9 dB)
- Sideline: Fokker F28 MK4000 (101.7 dB)
- Landing: Fokker F28 MK2000 (101.8 dB)

Narrowbody Airliners:
- Takeoff: BAe/Aerospatiale Concorde (119.5 dB)
- Sideline: BAe/Aerospatiale Concorde (112 dB)
- Landing: BAe/Aerospatiale Concorde (117 dB)

Widebody Airliners:
- Takeoff: Boeing 747-200 (110 dB)
- Sideline: Ilyushin IL-86 (104.2 dB)
- Landing: Ilyushin IL-76TD (108.9 dB)
* Noisiest pax widebody on landing is the Boeing 747-200 (107.8 dB)

--B2707SST

[Edited 2004-04-01 09:27:31]


Keynes is dead and we are living in his long run.
User currently offlineHaveBlue From United States of America, joined Jan 2004, 2124 posts, RR: 1
Reply 14, posted (10 years 8 months 4 weeks 23 hours ago) and read 4722 times:

The loudest sounds I've probably ever heard, aside from close lightning, is:

An AV-8B Harrier hovering
A B-1 Bomber in full afterburner
The Sonic Boom of the Shuttle returning to Cape Kennedy.

I seriously doubt any plane beats a harrier hovering for shear noise levels. The B-1 is close behind. And the double sonic boom of the shuttle is physically audible event.



Here Here for Severe Clear!
User currently offlineImisspiedmont From United States of America, joined May 2001, 6344 posts, RR: 33
Reply 15, posted (10 years 8 months 4 weeks 22 hours ago) and read 4718 times:

Not looking at the official numbers, I'd say the MD-80 is the loudest current major airliner flying today in real terms, my ears.


Damn, this website is getting worse daily.
User currently offlineCanoecarrier From United States of America, joined Feb 2004, 2843 posts, RR: 12
Reply 16, posted (10 years 8 months 3 weeks 5 days 22 hours ago) and read 4606 times:

1: DHC-Beaver
2: Lear 23
3: KA-100 or Metroliner (got to love the Garrett Engines)
4: No clue
5: 707 not reengined
6: 747-200

Love flying in the Beaver, but any single with a big radial in it is fun to fly.



The beatings will continue until morale improves
User currently offlineKYIPpilot From United States of America, joined Oct 2003, 1383 posts, RR: 6
Reply 17, posted (10 years 8 months 3 weeks 5 days 15 hours ago) and read 4565 times:

From my experience, the loudest single prop are the Beechcraft Bonanzas. On take-off, On Bonanzas without Q-tip blades, the prop tips become supersonic, and create quite a bit of noise.

For turbo props, the old Lockheed Electra 188's are loud taxiing.

Lear 23's for small jets.



"It starts when you're always afraid; You step out of line, the man come and take you away" -Buffalo Springfield
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