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owl with no eyes?



 
 
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  #21  
Old October 23rd 06, 04:57 AM posted to rec.aviation.soaring
Andy[_1_]
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Default owl with no eyes?


Ralph Jones wrote:
Before you can shoot it down you have to SEE it. If it's made of
fiberglass, forget seeing it on radar,



Ah yes - the saving grace of the Sparrow Hark. Other glass gliders can
be seen on radar because the conrol pushrods have a significant RCS.
The Sparrow Hawk strategically uses string instead.

Andy

  #22  
Old October 23rd 06, 06:27 AM posted to rec.aviation.soaring
Eric Greenwell
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Default owl with no eyes?

Andy wrote:
Ralph Jones wrote:
Before you can shoot it down you have to SEE it. If it's made of
fiberglass, forget seeing it on radar,


It's made of carbon fiber, which I assume makes it more visible than
fiberglass would.


Ah yes - the saving grace of the Sparrow Hark. Other glass gliders can
be seen on radar because the conrol pushrods have a significant RCS.
The Sparrow Hawk strategically uses string instead.


Actually, aramid fiber cables for the rudder and ailerons; pushrods for
the elevator and spoilers. The only "string" in it is the yaw string!

--
Eric Greenwell - Washington State, USA
Change "netto" to "net" to email me directly

"Transponders in Sailplanes" on the Soaring Safety Foundation website
www.soaringsafety.org/prevention/articles.html

"A Guide to Self-launching Sailplane Operation" at www.motorglider.org
  #23  
Old October 23rd 06, 04:02 PM posted to rec.aviation.soaring
Bob Kuykendall
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Posts: 1,345
Default owl with no eyes?

Earlier, Eric Greenwell wrote:

Actually, aramid fiber cables for the rudder and ailerons; pushrods for
the elevator and spoilers. The only "string" in it is the yaw string!


Aramid? I thought they were of one of the UHMW polyethelene products
like Spectra or Dyneema.

Bob K.

  #24  
Old October 23rd 06, 04:16 PM posted to rec.aviation.soaring
Bill Daniels
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Posts: 687
Default owl with no eyes?


"Bob Kuykendall" wrote in message
s.com...
Earlier, Eric Greenwell wrote:

Actually, aramid fiber cables for the rudder and ailerons; pushrods for
the elevator and spoilers. The only "string" in it is the yaw string!


Aramid? I thought they were of one of the UHMW polyethelene products
like Spectra or Dyneema.

Bob K.


Interesting. Arimids tend to turn to dust when exposed to UV.

UHMWPE (Spectra/Dyneema) wouldn't make good control cables since it "creeps"
under constant load and loses tension. Maybe Technora?

Bill D


  #25  
Old October 23rd 06, 08:22 PM posted to rec.aviation.soaring
Eric Greenwell
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Posts: 1,096
Default owl with no eyes?

Bill Daniels wrote:
"Bob Kuykendall" wrote in message
s.com...
Earlier, Eric Greenwell wrote:

Actually, aramid fiber cables for the rudder and ailerons; pushrods for
the elevator and spoilers. The only "string" in it is the yaw string!

Aramid? I thought they were of one of the UHMW polyethelene products
like Spectra or Dyneema.

Bob K.


Interesting. Arimids tend to turn to dust when exposed to UV.

UHMWPE (Spectra/Dyneema) wouldn't make good control cables since it "creeps"
under constant load and loses tension. Maybe Technora?


The cable info came from the Windward Performance website. The cables
are internally mounted, of course, so I don't think they get very much
UV. Perhaps the cable has a UV resistant covering - I don't remember the
brand name, though.


--
Eric Greenwell - Washington State, USA
Change "netto" to "net" to email me directly

"Transponders in Sailplanes" on the Soaring Safety Foundation website
www.soaringsafety.org/prevention/articles.html

"A Guide to Self-launching Sailplane Operation" at www.motorglider.org
  #26  
Old October 25th 06, 03:15 PM posted to rec.aviation.soaring
[email protected]
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Posts: 9
Default owl with no eyes?


bagmaker wrote:
Can someone explain to me the benefit of this weapon?


See http://quietaircraft.org/ for some historical context on this
topic.

-bob

  #27  
Old October 25th 06, 11:31 PM
bagmaker bagmaker is offline
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First recorded activity by AviationBanter: Aug 2005
Location: Melbourne Australia
Posts: 167
Default

Thanks, Bob and all, interesting info and links.

I was originally concerned that another aircraft was sharing MY airspace that would not be able to tell the difference between me and a large bird. Can you imagine the remote pilot's screen? "microshaft has detected a fault in the forward motion of your aircraft. send/dont send report?"

Now that I understand it is a military weapon, probably armed to dispatch other aircraft not sqauwking its tune, I feel a WHOLE lot better, thanks!

Knowing also that its developement is overseen by the cretins running the US military -with a well documented history of public aviator abuse, lack of airspace boundary understanding and total lack of accountability has me curling into the foetal position.

Bagmaker, getting bored anyway.
(flame suit on)
  #28  
Old October 26th 06, 07:10 PM posted to rec.aviation.soaring
Brad
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Posts: 53
Default owl with no eyes?

But don't you see, this is to make use safer.........and to ensure our
freedoms!
If we don't send owls with no eyes to all the places in the world that
hate us, how can we ever feel safe in our homes again?

Brad



bagmaker wrote:
Thanks, Bob and all, interesting info and links.

I was originally concerned that another aircraft was sharing MY
airspace that would not be able to tell the difference between me and a
large bird. Can you imagine the remote pilot's screen? "microshaft has
detected a fault in the forward motion of your aircraft. send/dont send
report?"

Now that I understand it is a military weapon, probably armed to
dispatch other aircraft not sqauwking its tune, I feel a WHOLE lot
better, thanks!

Knowing also that its developement is overseen by the cretins running
the US military -with a well documented history of public aviator
abuse, lack of airspace boundary understanding and total lack of
accountability has me curling into the foetal position.

Bagmaker, getting bored anyway.
(flame suit on)




--
bagmaker


 




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