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Secrets of owls’ near noiseless wings could lead to stealthier aircraft, researchers say
natmonitor.com ^

Posted on 11/24/2013 4:54:12 PM PST by BenLurkin

According to a news release from the American Physical Society, owls’ near noiseless wings could lead to stealthier aircraft. For owls, their specialized plumage gives them the ability to hunt and kill their prey in relative silence. Researchers believe that “silent owl technology” could improve the design of aircraft, wind turbines, and submarines.

(Excerpt) Read more at natmonitor.com ...


TOPICS: Science
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1 posted on 11/24/2013 4:54:12 PM PST by BenLurkin
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To: BenLurkin

Silent Owl drones coming to a neighborhood near you....


2 posted on 11/24/2013 5:00:00 PM PST by Bayard
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To: Bayard

Got divebombed by an owl one night when out walking our dog....didn’t realize what it was until it was past us. Spooky.


3 posted on 11/24/2013 5:02:03 PM PST by goodnesswins (R.I.P. Doherty, Smith, Stevens, Woods.)
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To: BenLurkin

Wonderful plumage, the Norwegian Blue. All silent. Don’t move at all.

But still visible to radar, I’m afraid.


4 posted on 11/24/2013 5:02:28 PM PST by Hardraade (http://junipersec.wordpress.com/2013/10/04/nicolae-hussein-obama/)
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To: BenLurkin

Who gives a hoot.


5 posted on 11/24/2013 5:03:51 PM PST by central_va (I won't be reconstructed and I do not give a damn.)
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To: BenLurkin

We have aircraft with wings that flap?!


6 posted on 11/24/2013 5:05:16 PM PST by Flag_This (Liberalism: Kills countries dead.)
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To: Bayard

That was my thought, too.

I no longer imagine they develop stealthy weapons for use on the enemy abroad.

I now believe they create weapons for use against the citizens in the United States.


7 posted on 11/24/2013 5:08:51 PM PST by Irenic (The pencil sharpener and Elmer's glue is put away-- we've lost the red wheel barrow)
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To: goodnesswins; BenLurkin; Bayard
Got divebombed by an owl one night when out walking our dog....didn’t realize what it was until it was past us. Spooky.

I was night time paddling on a full moon on the Shenandoah river when that happened to me. I was calmly drifting with the current, and a BIG owl flew right across my kayak, just a couple feet off the water, at eye level.. It certainly caught my attention!

I guess he was just checking me out! What a hoot!

8 posted on 11/24/2013 5:08:59 PM PST by WVKayaker ("Because nothing says "rugged individualism" like heavy-handed big government.../sarc" -Sarah Palin)
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To: BenLurkin
...may be far-reaching implications to the design of novel sound-absorbing liners, the use of flexible roughness to affect trailing-edge noise and vibrations for aircraft and wind turbines,...

that's it...make those wind turbines even harder for eagles and other birds and bats to hear and sense

9 posted on 11/24/2013 5:11:09 PM PST by digger48
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To: BenLurkin
It used to be that we took cues on high technology from Star Trek. Now the theme seems to be Harry Potter.
10 posted on 11/24/2013 5:11:36 PM PST by jmcenanly ("The more corrupt the state, the more laws." Tacitus, Publius Cornelius)
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To: BenLurkin

Yeah good luck with that…. Owls don’t have any noisy engine to alert one. The wing design and manner in which the feathering edges work during the flight beat all lend to the quiet nature of the owl’s travel.


11 posted on 11/24/2013 5:12:54 PM PST by Nifster
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To: BenLurkin
Didn't we first learn of this technology from Mel Gibson in the movie “Conspiracy Theory” describing the rotor blades on Black Helicopters?
12 posted on 11/24/2013 5:13:20 PM PST by Buffalo Head (Illigitimi non carborundum)
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To: BenLurkin

Since our aircraft sleath is based on a radar signal being deflected and not seen.....I don’t see how a new wing design based on an Owls wing would be meaningfull .... Unless of course drone need to be silent as they spy on citizens....

Nay that would be silly /S


13 posted on 11/24/2013 5:13:41 PM PST by Popman
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To: Bayard
My old office building was backed up against a stand of pines to the rear and a cane field off to the side. One Saturday I was in putting in some extra hours and stepped outside for a smoke. While I was out there I caught a glimpse of quick motion out of the corner of my eye and naturally followed it.

It was a great horned owl swooping down from high up in the trees like a lightning bolt. He plucked a 2-3' long snake from out of the newly cut cane field, and with one or two flaps of his wings, floated back up into the trees with his dinner.

The thing that utterly amazed me was the whole episode was utterly silent, and had my back been turned, it all would have unfolded and I'd have been none the wiser. The utter silence was so impressive, I now I'll never forget it...and yes, the silence, speed and economy of the owl's movements was both sublime and eerie...

14 posted on 11/24/2013 5:14:58 PM PST by Joe 6-pack (Qui me amat, amat et canem meum.)
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To: goodnesswins
Got divebombed by an owl one night when out walking our dog....didn’t realize what it was until it was past us. Spooky.

Most likely he was after your dog. I read about a guy who was wearing a coonskin cap replica one night and an owl attacked his head, leaving some rather deep lacerations from the owl's talons. Don't know if the owl got the hat or not:)

15 posted on 11/24/2013 5:17:45 PM PST by calex59
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To: BenLurkin

So...how is this going to make airplanes stealthy? Nobody hears the wings when a plane flies by. They hear the engines. Silencing the WINGS of a fighter jet is like putting deodorant on Godzilla and thinking that nobody will notice him now as he breaths fire and kicks down buildings.

I mean maybe, MAYBE you could stretch it and say that studying the leading tips of the owl’s wings could help understand the leading edge wing friction when dealing with IR guided missiles. Well, probably not. But I tried.

What I REALLY smell is someone trying to get more funding to study owl wings, and this is a pitch to try to get the DOD purse open.


16 posted on 11/24/2013 5:20:00 PM PST by The Black Knight (What would John Rambo do?)
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To: calex59

Doubt it...my dog is a Lab/Aussie mix....I think maybe just curious, though....I have heard of Eagles lifting kittens off decks...


17 posted on 11/24/2013 5:23:12 PM PST by goodnesswins (R.I.P. Doherty, Smith, Stevens, Woods.)
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To: BenLurkin

What really makes owls quiet is that they fly very slowly.

I was walking past a pine tree in a small clearing one day, when I thought the Sun had gone behind a cloud — I looked up and not five feet over my head there was a HUGE great horned owl dropping out of the tree into a glide, blotting out the sky. There was absolutely no sound, in fact, I think I could hear a hole in the ambient sound where the owl was. He flew without a wing beat down across a small valley. He managed to alight in another pine tree without being spotted by the crows. Awesome.


18 posted on 11/24/2013 5:23:24 PM PST by Born to Conserve
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To: Bayard

There was a science-fiction author named Frank Herbert who wrote about aircraft designed to imitate birds - he called them “ornithopters,” I seem to remember .. he wrote several novels titled “Dune” ...


19 posted on 11/24/2013 5:23:30 PM PST by Ken522
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To: goodnesswins

“Got divebombed by an owl one night.........”

Same here. I have a 40% hearing loss. The air was very still and I felt his wake before I saw him. Huge great horned owl.


20 posted on 11/24/2013 5:24:52 PM PST by CrazyIvan (Obama phones= Bread and circuits.)
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