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Looking for Janus C polar and flap settings



 
 
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  #1  
Old June 9th 08, 11:26 AM posted to rec.aviation.soaring
Jonas Eberle
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Posts: 5
Default Looking for Janus C polar and flap settings

Hi fellows,

I am eagerly looking for a Janus C (20m) polar, including flap
settings. Unfortunately the polar is not included in the Schempp Hirth
documents.
What I found is this Excel spreadsheet with various polar datae:
[users.ox.ac.uk/~gliding/docs/Polar Comparison Chart.xls]. But it
seems like a Janus B as its L/D is 38.

I think the Janus C (20m) has been measured by Idaflieg in 1997 as
indicated he [http://www.mrueb.de/jahresberichte/jb97/sotre.html]
Maybe someone here has the data?

It would be nice if some Janus-Pro's could help me out, also with
comments on the following:

From our personal experience we fly the following flap settings at
unaccelerated straight flight [35kg/m² = 600kg, which is a double
seated Janus CT]:
0°: -125km/h
-4°: 125-150km/h
-7°: 150-
best glide speed: 110km/h at flaps 0°

Janus must be a powerful glider in the right hands, but I am still
working on the right style with this ship.
  #2  
Old June 11th 08, 10:59 AM posted to rec.aviation.soaring
Jonas Eberle
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Posts: 5
Default Looking for Janus C polar and flap settings

Thanks a lot to James Wynhoff and Bill T for helping out!
  #3  
Old June 16th 08, 12:34 PM posted to rec.aviation.soaring
Jonas Eberle
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Posts: 5
Default Looking for Janus C polar and flap settings

On 11 Jun., 11:59, Jonas Eberle wrote:
Thanks a lot to James Wynhoff and Bill T for helping out!


I have marked it in colors, added 35kp/m² and uploaded it he
http://flightvision.is.dreaming.org/...anusCPolar.png

Best regards
 




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