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Mk II yaw string



 
 
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  #1  
Old September 1st 09, 04:28 AM posted to rec.aviation.soaring
Warren
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Posts: 7
Default Mk II yaw string

Looking for "bumper"....I need to send information on his Mk II yaw
string to a sailplane enthusiast in Kansas. I did a search on this
site but couldn't find anything. Thanks for you help.

Warren Evans

  #2  
Old September 1st 09, 11:01 AM posted to rec.aviation.soaring
Stealth Pilot[_3_]
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Posts: 58
Default Mk II yaw string

On Mon, 31 Aug 2009 20:28:33 -0700 (PDT), Warren
wrote:

Looking for "bumper"....I need to send information on his Mk II yaw
string to a sailplane enthusiast in Kansas. I did a search on this
site but couldn't find anything. Thanks for you help.

Warren Evans


isnt the mk1 version a tetleys tea bag string?
you're allowed to use twinings earl grey string if you cant stand the
tetleys.

Stealth Pilot
  #3  
Old September 2nd 09, 05:49 PM posted to rec.aviation.soaring
Ralph Jones[_2_]
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Posts: 117
Default Mk II yaw string

On Tue, 01 Sep 2009 10:01:50 GMT, Stealth Pilot
wrote:

On Mon, 31 Aug 2009 20:28:33 -0700 (PDT), Warren
wrote:

Looking for "bumper"....I need to send information on his Mk II yaw
string to a sailplane enthusiast in Kansas. I did a search on this
site but couldn't find anything. Thanks for you help.

Warren Evans


isnt the mk1 version a tetleys tea bag string?
you're allowed to use twinings earl grey string if you cant stand the
tetleys.


No good for German ships. Tetley's is not metric.

rj
  #5  
Old September 1st 09, 07:25 PM posted to rec.aviation.soaring
ZZ
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Posts: 68
Default Mk II yaw string

The Mk ll is old technology. I just bought the latest Mk lV for $300 on
Wangs & Wobbles.

Paul
ZZ



Warren wrote:
Looking for "bumper"....I need to send information on his Mk II yaw
string to a sailplane enthusiast in Kansas. I did a search on this
site but couldn't find anything. Thanks for you help.

Warren Evans

  #6  
Old September 2nd 09, 12:14 AM posted to rec.aviation.soaring
ContestID67[_2_]
external usenet poster
 
Posts: 202
Default Mk II yaw string

The yaw string in question is now up to model MKIV. The string is
made out of the gizard of a mature sandhill crane and is know to
actively point to thermals (but you have to slip like hell to get
there).

See the MKIII in action at http://www.youtube.com/watch?v=VCPMAAF7pMg.
  #7  
Old September 2nd 09, 12:15 AM posted to rec.aviation.soaring
Nyal Williams[_2_]
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Posts: 259
Default Mk II yaw string

Did you get the patch for it yet? It doesn't work right in a crosswind
without the patch. It is available at SawYou.com for $29.00.

At 18:25 01 September 2009, ZZ wrote:
The Mk ll is old technology. I just bought the latest Mk lV for $300 on
Wangs & Wobbles.

Paul
ZZ



Warren wrote:
Looking for "bumper"....I need to send information on his Mk II yaw
string to a sailplane enthusiast in Kansas. I did a search on this
site but couldn't find anything. Thanks for you help.

Warren Evans


  #8  
Old September 2nd 09, 01:33 AM posted to rec.aviation.soaring
soardawg
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Posts: 1
Default Mk II yaw string

On Sep 1, 11:25*am, ZZ wrote:
The Mk ll is old technology. I just bought the latest Mk lV for $300 on
Wangs & Wobbles.

Paul
ZZ



Warren wrote:
Looking for "bumper"....I need to send information on his Mk II yaw
string to a sailplane enthusiast in Kansas. *I did a search on this
site but couldn't find anything. Thanks for you help.


Warren Evans- Hide quoted text -


- Show quoted text -


I hear that there is a profuse review on the Numlus Soaring Supplies
site and a 190 page manual written by the servant.

  #9  
Old September 3rd 09, 01:52 PM posted to rec.aviation.soaring
AGL
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Posts: 47
Default Mk II yaw string


I hear that there is a profuse review on the Numlus Soaring Supplies
site and a 190 page manual written by the servant.


After extensive testing, I have found that the closer the MKIV is
mounted to the front of the canopy, the more sensitive it is to slip
and skid, probably because of tighter radius of curvature of the
canopy. I had to install four, using the one closest to the horizon
for whatever speed I’m going since I want more sensitivity at slower
speeds. With + flaps you have to remember to watch one higher than
the one at the horizon to maintain sensitivity calibration.
Fortunately, at full flaps on final you don’t use the yaw string much
so it isn’t necessary to make sensitivity compensation.

AGL
  #10  
Old September 3rd 09, 03:38 PM posted to rec.aviation.soaring
Andreas Maurer
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Posts: 345
Default Mk II yaw string

On Thu, 3 Sep 2009 05:52:48 -0700 (PDT), AGL
wrote:


I had to install four, using the one closest to the horizon
for whatever speed I’m going since I want more sensitivity at slower
speeds.


This is the current German 15m-champion's opinion about the
sensitivity of a yaw string:
Even with a significant sideslip angle it's better to let the glider
straiten itself (rudder centered) instead of using rudder all the time
to keep the yaw string centered precisely.

In his opinion the deflected rudder produces more induced drag than a
moderate yaw angle (=up to 20 degrees yaw string deflection).
In my opinion success proves him right.


Cheers
Andreas
Bye
Andreas
 




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