[WWI] 1/144 scale WWI aircraft

[Ivan Carlos Ruchesi]

Jim Landon <thegreatlandoni at hotmail.com> escribió:        .hmmessage P  {  margin:0px;  padding:0px  }  body.hmmessage  {  FONT-SIZE: 10pt;  FONT-FAMILY:Tahoma  }    <<While trying to imagine how something may sag up ...>>
 
>We need to stop using the word "sag". The curvature of the fabric >has nothing to do with sagging from gravity. The fabric is drawn into a >curved shape by the shrinking of the fabric caused by the dope. Turn >the plane upside down and the fabric on the underside of the wing >holds the same shape.
 
>Build a balsa and tissue scale model airplane and you'll see.
 
>Jim
   
   
   
  You´re right Jim, the correct word is shrink, not sag. The effect is a complex one and it may still be difficult to think of the fabric getting curved while shrinking. But it´s real, I knew it when covering the undercambered wing of a flying model airplane.
   
   
  Ivan



       
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