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Silhouette challenge

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Old 4th Nov 2009, 09:25
  #4101 (permalink)  
 
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You're not missing anything skytrain.

There is no engine.

LM
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Old 4th Nov 2009, 12:57
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Airfoil looks like USA35b, but I could be wrong.
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Old 4th Nov 2009, 13:14
  #4103 (permalink)  
 
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Max thickness of the USA35B is at about 30% chord.

On this aerofoil it sits further forward, and it's not a Clark Y either.

When the challenge is solved I will show you the aerofoil.

LM

PS we have not heard from Carson for some time.
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Old 4th Nov 2009, 13:27
  #4104 (permalink)  
 
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You've got the airfoil aswell!
You are right. It is more like Goettingen 321.
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Old 4th Nov 2009, 13:47
  #4105 (permalink)  
 
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Don't think so.

On the Goettingen the point of maximum undersurface reflex camber is further back than on this challenge.

You fishing?
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Old 4th Nov 2009, 13:54
  #4106 (permalink)  
 
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Not much. Can't find that many sesquiplane seaplane gliders.
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Old 4th Nov 2009, 14:46
  #4107 (permalink)  
 
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Where is everybody?
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Old 4th Nov 2009, 15:07
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Sorry. Downloading something about Feynman.
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Old 4th Nov 2009, 17:23
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Must be cluetime then.

A 1930s homebuild design. The plans may still be purchased from a US company. It was designed to fly slowly so as to be able to be towed behind a boat. I do have a photograph for the doubters.

LM
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Old 4th Nov 2009, 17:40
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.....and here it is:

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Old 4th Nov 2009, 18:17
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Another clue:

"so as to be able to be towed behind a boat" - on water.
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Old 4th Nov 2009, 18:18
  #4112 (permalink)  
 
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I've been here, but hadn't come up with anything until now.

The Lawrence Water Glider I believe...
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Old 4th Nov 2009, 18:20
  #4113 (permalink)  
 
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Shoot skytrain.

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Old 4th Nov 2009, 18:23
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Nice one LM....I'm going to have to declare Open House. Work calls!
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Old 4th Nov 2009, 18:24
  #4115 (permalink)  
 
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Sablatnic,

Type the name into Google and scroll down to see the aerofoil.

Not wishing to be a "hog", it remains Open House.

LM
Last edited by Lightning Mate; 4th Nov 2009 at 18:50.
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Old 4th Nov 2009, 19:36
  #4116 (permalink)  
 
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I will accept LMs open house ! with this one which, based on my history, will be over in a flash ! sorry its a three view, not a silhouette !

Keith.

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Old 4th Nov 2009, 19:37
  #4117 (permalink)  
 
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Thanks LM. Found it. You are right. It is not the Göttingen 321. The Göttingen has a much sharper LE.
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Old 4th Nov 2009, 19:57
  #4118 (permalink)  
 
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Henschel HS129.

Ciarain.
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Old 4th Nov 2009, 20:01
  #4119 (permalink)  
 
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Wow ! 20 minutes ! that must be a record for me ?

Ciarain, Yes of course ! thank you , looking forward to your next challenge.

Keith.
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Old 4th Nov 2009, 20:04
  #4120 (permalink)  
 
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Keith,

Nothing to post, so open house.

Ciarain.
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