If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
What is this sound?
If you stand a quarter of a mile or so from the threshold at PDX 28R, (or at the cemetery at McCarran in Las Vegas, the incoming), you hear a windy, howling sound that is so well defined it seems to take shape in the sky after the larger jets have passed for touchdown. Has anybody heard it? What is that? Our theory has always been that its the wingtip vortices collapsing. -c |
#2
|
|||
|
|||
Has anybody heard it? What is that? Our theory has always been that its
the wingtip vortices collapsing. We've heard it, too. Only the big jets seem to make that noise. It's very cool, almost creepy. -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#3
|
|||
|
|||
It may be the thrust reversing. I presume that the sound is very much
louder on cool humid nights. I lived south of Willow Run (YIP) for many years, but on those humid nights I could even hear the jets from Detroit metro (DTW?) which was much further away. It could also be the sound echo off the steep sides of those rugged hills, eh? "gatt" wrote in message ... If you stand a quarter of a mile or so from the threshold at PDX 28R, (or at the cemetery at McCarran in Las Vegas, the incoming), you hear a windy, howling sound that is so well defined it seems to take shape in the sky after the larger jets have passed for touchdown. Has anybody heard it? What is that? Our theory has always been that its the wingtip vortices collapsing. -c |
#4
|
|||
|
|||
It may be the thrust reversing.
Nah -- it's the vortices whistling and zipping, after the plane has passed. It almost sounds like someone swinging a jump-rope through the air as fast as they can whip it. -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#5
|
|||
|
|||
On Mon, 07 Jun 2004 20:33:30 GMT, "Jay Honeck"
wrote: Has anybody heard it? What is that? Our theory has always been that its the wingtip vortices collapsing. We've heard it, too. Only the big jets seem to make that noise. It's very cool, almost creepy. My vote? It's got something to do with air building up in front of those large cowling/nacelle inlets while the jets "glide" towards the airport at flight-idle. When the power comes back up, the aerodynamics in front of the cowling(s) changes and the result is the sound you hear. (that's my WAG anyway....). Bela P. Havasreti |
#6
|
|||
|
|||
"Jay Honeck" wrote in message news:9a5xc. It may be the thrust reversing. Nah -- it's the vortices whistling and zipping, after the plane has passed. It almost sounds like someone swinging a jump-rope through the air as fast as they can whip it. That's exactly what it sounds like. It's truly awesome on a good, still night. It's so crisp that it seems like you could almost see it, like a tornado. In high school, I used to take dates out Marine Drive to listen to it. Heh. No, really, that's why we went there. -c |
#7
|
|||
|
|||
In high school, I used to take dates out Marine Drive to listen to it.
Heh. No, really, that's why we went there. Mary and I drove out to the end of a runway at Mitchell International, in Milwaukee, WI, just to listen and watch. And that's all we really did. *sigh* It's hell to get old... ;-) -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#8
|
|||
|
|||
"gatt" wrote in message ... If you stand a quarter of a mile or so from the threshold at PDX 28R, (or at the cemetery at McCarran in Las Vegas, the incoming), you hear a windy, howling sound that is so well defined it seems to take shape in the sky after the larger jets have passed for touchdown. Has anybody heard it? What is that? Our theory has always been that its the wingtip vortices collapsing. -c What you're hearing is the wingtip vorticies. A really powerful one sounds like someone ripping a bedsheet in half. |
#9
|
|||
|
|||
On 6/7/04 6:08 PM, in article aH5xc.18373$Sw.6071@attbi_s51, "Jay Honeck"
wrote: In high school, I used to take dates out Marine Drive to listen to it. Heh. No, really, that's why we went there. Mary and I drove out to the end of a runway at Mitchell International, in Milwaukee, WI, just to listen and watch. And that's all we really did. *sigh* It's hell to get old... ;-) Jay, you're younger than I am, and I'm not old. I'm a grandfather six months now and I'm not old. Old folks don't ride motorcycles like we do. (OK, maybe a Goldwinger can be old) Old people don't pilot planes. I haven't even hit middle age yet, let alone old. -- Jeff 'The Wizard of Draws' Bucchino Cartoons with a Touch of Magic www.wizardofdraws.com www.cartoonclipart.com |
#10
|
|||
|
|||
Can you get a recording?
Michelle gatt wrote: If you stand a quarter of a mile or so from the threshold at PDX 28R, (or at the cemetery at McCarran in Las Vegas, the incoming), you hear a windy, howling sound that is so well defined it seems to take shape in the sky after the larger jets have passed for touchdown. Has anybody heard it? What is that? Our theory has always been that its the wingtip vortices collapsing. -c -- Michelle P ATP-ASEL, CP-AMEL, and AMT-A&P "Elisabeth" a Maule M-7-235B (no two are alike) Volunteer Pilot, Angel Flight Mid-Atlantic Volunteer Builder, Habitat for Humanity |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
How Aircraft Stay In The Air | Sarah Hotdesking | Military Aviation | 145 | March 25th 04 05:13 PM |
Puget Sound TFRs reduced in size - charted here | David H | Owning | 3 | January 10th 04 06:01 AM |
Puget Sound TFRs reduced in size, turned into National Security Areas | C J Campbell | Piloting | 4 | January 10th 04 06:01 AM |
Convair XF2Y Seadart Buno 135762 - sound barrier | Chuck | Naval Aviation | 18 | December 28th 03 07:49 PM |
F-86 and sound barrier | VH | Military Aviation | 43 | September 26th 03 02:53 AM |