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The Real Whisperjet?  
User currently offlineJamesJimlb From United States of America, joined Jan 2006, 1023 posts, RR: 2
Posted (8 years 2 months 4 weeks 1 day 13 hours ago) and read 7851 times:

i have heard about two different airplanes being called whisperjet. 727 and the avroliner. if you know any others please respond.


The sky is no longer the limit, but the mere minimum
26 replies: All unread, showing first 25:
 
User currently offlineQantas767 From Australia, joined Jul 2000, 101 posts, RR: 2
Reply 1, posted (8 years 2 months 4 weeks 1 day 13 hours ago) and read 7831 times:

Eastern named their L-1011s whisperliners

[Edited 2006-09-24 06:28:30]


IF IT DON'T HOVER - DON'T BOTHER
User currently offlineRemcor From United States of America, joined Feb 2006, 358 posts, RR: 0
Reply 2, posted (8 years 2 months 4 weeks 1 day 13 hours ago) and read 7821 times:

That's what you call marketing... I mean they may have been quieter, but to say that they're as loud as a whisper is stretching it thin.

User currently offlineAirlinebrat From United States of America, joined Jan 2005, 657 posts, RR: 0
Reply 3, posted (8 years 2 months 4 weeks 1 day 12 hours ago) and read 7756 times:

Well the farther towards the front of the cabin, the quieter it is.....


I'm leavin on a jet plane. Don't know when I'll be back again....
User currently offlinePanAm747 From United States of America, joined Feb 2004, 4242 posts, RR: 8
Reply 4, posted (8 years 2 months 4 weeks 1 day 12 hours ago) and read 7738 times:


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Photo © Frank C. Duarte Jr.
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Photo © Malcolm Anderson - t.dot photography



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Photo © Bob Garrard
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Photo © Willam W. Sierra



Ironic name "Whisperjet" - early 727-100's, -200's and DC-9's were some of the LOUDEST aircraft ever made!!

I can still when a cargo 727 is on approach to SAN - it is audible at a level MUCH higher than other aircraft. Doesn't diminish from its grace and elegance, though...



Pan Am:The World's Most Experienced Airline - P(oor) S(ailor's) A(irline): San Diego's Hometown Airline-Catch Our Smile!
User currently offlineSWISSER From , joined Dec 1969, posts, RR:
Reply 5, posted (8 years 2 months 4 weeks 1 day 9 hours ago) and read 7639 times:

Quoting Airlinebrat (Reply 3):
Well the farther towards the front of the cabin, the quieter it is.....

Let's call that the whisper-cabin!
the 340 is my choice then!  Wink

I have to say though that the Avro is relatively quiet, until they open up there flaps, until now I have no clue what that sound actually is or how come a flap can produce such a sound, I guess drag...


User currently offlineBRUspotter From Belgium, joined Jan 2004, 145 posts, RR: 0
Reply 6, posted (8 years 2 months 4 weeks 1 day 5 hours ago) and read 7454 times:

Quoting SWISSER (Reply 5):
I have to say though that the Avro is relatively quiet, until they open up there flaps

Anyone living in the vicinity of BRU will be familiar with the sound of an Avro lowering or retracting its flaps. The hospital where I work is on the flight path out of BRU about 2-3 minutes out (flying time). Lots of SN's Avros retract their flaps about this point and I can hear that whoosh inside the operating room even through double glass.

The sound of the raising/lowering flaps inside the cabin could be quite alarming to someone who does not know what is making the noise, as it comes on so suddenly. It is a whining droning sound which gets increasingly higher or lower in pitch depending on whether the flaps are being extended or retracted.



I never think of the future - it comes soon enough.
User currently offlineGr8SlvrFlt From United States of America, joined Jan 2002, 1609 posts, RR: 10
Reply 7, posted (8 years 2 months 4 weeks 1 day 4 hours ago) and read 7404 times:

Eastern Airlines coined the name Whisperjet for it's new Boeing 727s in 1964. Since the engines were in the rear, the noise in the cabin was lower than on competing 707s, 720s, DC-8s, 880s, and 990s. From the outside the 727s were much quieter than the screaming water-injected turbojets then common. The Whisperjet moniker was later added to the Eastern DC-9 fleet while the widebodied L-1011s and A-300s were called Whisperliners. When it comes to noise, it's all relative.

User currently offlineJRowson From United Kingdom, joined May 2004, 359 posts, RR: 12
Reply 8, posted (8 years 2 months 4 weeks 1 day 4 hours ago) and read 7348 times:

Cabin noise seems to vary greatly, but one of the most impressive i've been on in recent times has to be a Qantas A333. Once cruising, even sat at the back they are impressively quiet and comfortable.


James Rowson. Canonite and lover of all things L. JAR Photography.
User currently offlineSWISSER From , joined Dec 1969, posts, RR:
Reply 9, posted (8 years 2 months 4 weeks 1 day 4 hours ago) and read 7335 times:

Quoting BRUspotter (Reply 6):
Anyone living in the vicinity of BRU will be familiar with the sound of an Avro lowering or retracting its flaps. The hospital where I work is on the flight path out of BRU about 2-3 minutes out (flying time). Lots of SN's Avros retract their flaps about this point and I can hear that whoosh inside the operating room even through double glass.

Agreed!
I don't live in Belgium right now, but all the way on the ILS capture point of 25L you hear that growl as well!
(BTW, what hospital is that? Kortenberg?)

Quoting Gr8SlvrFlt (Reply 7):
When it comes to noise, it's all relative.

yeah, I think that's the truth, even a glider makes noise!


User currently offlineJakTrax From United Kingdom, joined Jun 2005, 4936 posts, RR: 7
Reply 10, posted (8 years 2 months 4 weeks 1 day 4 hours ago) and read 7335 times:

The Avro is extremely quiet, as was its predecessor, the 146, although from the inside they are quite noisy. They make a unique sound on taxiing and take-off, and the only other aircraft I can think of which makes similarly quiet sounds is the EMB-145 (which we at MAN tend to nickname 'hairdryers').

Karl


User currently offlineBRUspotter From Belgium, joined Jan 2004, 145 posts, RR: 0
Reply 11, posted (8 years 2 months 4 weeks 1 day 3 hours ago) and read 7262 times:

Quoting SWISSER (Reply 9):
(BTW, what hospital is that? Kortenberg?)

No, AZ-VUB in Jette.



I never think of the future - it comes soon enough.
User currently offlineEA CO AS From United States of America, joined Nov 2001, 13751 posts, RR: 61
Reply 12, posted (8 years 2 months 4 weeks 22 hours ago) and read 6821 times:
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Quoting PanAm747 (Reply 4):
Ironic name "Whisperjet" - early 727-100's, -200's and DC-9's were some of the LOUDEST aircraft ever made!!

Ironic today, yes. In their day, they were among the quietest jet aircraft around though.



"In this present crisis, government is not the solution to our problem - government IS the problem." - Ronald Reagan
User currently offlineBAtriple7 From United Kingdom, joined Nov 2005, 227 posts, RR: 0
Reply 13, posted (8 years 2 months 4 weeks 21 hours ago) and read 6167 times:

Quoting SWISSER (Reply 5):
I have to say though that the Avro is relatively quiet, until they open up there flaps, until now I have no clue what that sound actually is or how come a flap can produce such a sound, I guess drag...

Yep, sounds like a bomb's been dropped  Smile I think rather than drag it's the sound of the moving parts, no?


User currently offlineSWISSER From , joined Dec 1969, posts, RR:
Reply 14, posted (8 years 2 months 4 weeks 21 hours ago) and read 6085 times:

Quoting BAtriple7 (Reply 13):
I think rather than drag it's the sound of the moving parts, no?

Could be as well, although it is unlikely that any hydraulic pump or cylinder makes SO MUCH noise!
we need an Avro-BAe expert to break this myth!


User currently offlineAccess-Air From United States of America, joined Sep 2000, 1940 posts, RR: 12
Reply 15, posted (8 years 2 months 4 weeks 21 hours ago) and read 6054 times:

Quoting BAtriple7 (Reply 13):
Quoting SWISSER (Reply 5):
I have to say though that the Avro is relatively quiet, until they open up there flaps, until now I have no clue what that sound actually is or how come a flap can produce such a sound, I guess drag...

Yep, sounds like a bomb's been dropped Smile I think rather than drag it's the sound of the moving parts, no?

I believe that is the sound of the flap motors and the jackscrews as they retract or extend the flaps...I have been on the 146 100, 200 and 300 series and they all make the same noise....Its just like the sound on say like a 737 or 727 with the electric motor raising or lowering their flaps....

Access-Air



Remember, Wherever you go, there you are!!!!
User currently offlineRIXrat From United States of America, joined Nov 2005, 789 posts, RR: 0
Reply 16, posted (8 years 2 months 4 weeks 20 hours ago) and read 5540 times:

Naw, on the Avro what scares passengers the most is the extraction of the landing gear with a definite thump on the end when it has locked. A very definite in-flight cabin noise.

User currently offlineJamie757 From , joined Dec 1969, posts, RR:
Reply 17, posted (8 years 2 months 4 weeks 20 hours ago) and read 5417 times:

Quoting SWISSER (Reply 5):
I have to say though that the Avro is relatively quiet, until they open up there flaps, until now I have no clue what that sound actually is or how come a flap can produce such a sound, I guess drag...

I would agree with this, however, if you have a quick look here...

BAe146 Descent (by BAe146QT Sep 24 2006 in Tech Ops)

Read reply number two, it may help to shed a little more light on the reason for the noise.

Rgds.

[Edited 2006-09-24 23:38:40]

User currently offlineLTU932 From Germany, joined Jan 2006, 13864 posts, RR: 50
Reply 18, posted (8 years 2 months 4 weeks 20 hours ago) and read 5379 times:

Quoting PanAm747 (Reply 4):
Ironic name "Whisperjet" - early 727-100's, -200's and DC-9's were some of the LOUDEST aircraft ever made!!

You're wrong. This was much louder:

View Large View Medium
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Photo © Charlie Atterbury

^^A watercooled pure jet 707, not one with turbofans.  Wink


User currently offlineTu204 From Russia, joined Mar 2006, 1255 posts, RR: 17
Reply 19, posted (8 years 2 months 4 weeks 19 hours ago) and read 5113 times:

TNT cargo calls their Tu204s "whisperjets".


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User currently offlineJfk777 From United States of America, joined Aug 2006, 8500 posts, RR: 6
Reply 20, posted (8 years 2 months 4 weeks 19 hours ago) and read 4884 times:
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The L-1011 were quiet airplanes, but the "Whisperjets", those Eastern 727 were NOISY for all they years they flew over my house in Palm Beach.

User currently offlineCaptaink From Mexico, joined May 2001, 5109 posts, RR: 12
Reply 21, posted (8 years 2 months 4 weeks 19 hours ago) and read 4884 times:

Quoting LTU932 (Reply 18):
A watercooled pure jet 707, not one with turbofans.

Ok, I don't want to go posting in the tech/ops forum, but how the devil does that work? Check out the exhaust... YIKES



There is something special about planes....
User currently offlineAntskip From Australia, joined Jan 2006, 936 posts, RR: 6
Reply 22, posted (8 years 2 months 4 weeks 18 hours ago) and read 4619 times:

BOAC used to promote its big turboprop Bristol Britannias as the "Whispering Giant". BOAC advertised its rear-jet VC-10 as "triumphantly swift, silent, serene" http://www.vc10.net/History/boac_advertising.html.

User currently offlineGr8Circle From Canada, joined Dec 2005, 3130 posts, RR: 4
Reply 23, posted (8 years 2 months 4 weeks 18 hours ago) and read 4512 times:

Quoting LTU932 (Reply 18):
You're wrong. This was much louder:

^^A watercooled pure jet 707, not one with turbofans.

The loudest planes I ever heard were the VC-10 and the Caravelle......

The L-1011 was really very quite in its days...the daily GF L-1011 flight used to pass over my house on its way to approach r/way 27 at BOM and it used to make just a low whining sound that was quite pleasant to hear....unlike some of the other aircraft of that period... smile 


User currently offlinePanAm747 From United States of America, joined Feb 2004, 4242 posts, RR: 8
Reply 24, posted (8 years 2 months 4 weeks 17 hours ago) and read 4103 times:

Quote:
Ok, I don't want to go posting in the tech/ops forum, but how the devil does that work? Check out the exhaust...

From "Boeing Jetliners" by Guy Norris & Mark Wagner:

"Despite achieving revolutionary speeds, the 707-100 series plane was essentially underpowered. Its Pratt & Whitney JT3C-6 Turbojets were incredibly noisy and dirty. They were rated at only 13,500 pounds of thrust each, and needed water injection for takeoff at high weights. This process involved the injection of distilled water into the compressor, which basically fooled the engine into believing it was sucking in more air than it actually was. This boosted power, but was environmentally disasterous and took up valuable weight that would have otherwise been used for payload or fuel".

"Early 707 models were nicknamed 'aqua-jets' and 'water-wagons' by their crews".


Quote:
Ok, I don't want to go posting in the tech/ops forum, but how the devil does that work? Check out the exhaust...A watercooled pure jet 707, not one with turbofans.

I agree - but I said AMONG the noisiest...

Wasn't their a thread about the loudest jetliners ever here a while back?



Pan Am:The World's Most Experienced Airline - P(oor) S(ailor's) A(irline): San Diego's Hometown Airline-Catch Our Smile!
25 AlexPorter : At the beginning of Easy Rider, the scene is right before a runway where planes are flying close overhead and landing, and they are very, very loud. I
26 Kdeg00 : I have a very distinct memory of seeing my dad off at Logan airport as a kid and him getting onto a 737 with "Whisperjet" on the side. I'm pretty sure
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