Re: Possible new indoor material

From: Bill Gowen <wdgowen_at_earthlink.net>
Date: Sun, 19 Mar 2006 14:54:50 -0500

Tim
I use that size rod a lot in gliders. It's pretty hard to find. I'd definitely be a customer but probably wouldn't need large quantities. The small rods are much better in compression than glued on carbon tow and weigh about the same.
  ----- Original Message -----
  From: Tim Goldstein
  To: Indoor_Construction_at_yahoogroups.com
  Sent: Sunday, March 19, 2006 3:21 AM
  Subject: [Indoor_Construction] Possible new indoor material


  I am looking at having some 0.24mm (0.009") high modulus epoxy matrix
  pultrusion carbon fiber made. It is probably about as close in stiffness as
  you can get to boron. The advantage to the high modulus material is the
  stiffness which is much greater than standard carbon. The material is more
  fragile than standard carbon with an elongation at yield of .8% as compared
  to 1.5% elongation for normal carbon material. The upside is much greater
  stiffness than standard carbon without the safety concerns of boron. To give
  an idea of stiffness, a 20" length drops about 5" at the end when clamped to
  a surface so there is 20" standing straight out. Weight is about 24 mg/ft.

  The material would not be cheap. It would sell for about $1.20/ft and would
  have to ship in precut lengths as it is stiff to roll.

  Does anyone have any feelings as to whether this would be useful?


  Tim
  [Denver, CO]
  Indoor balsa wood & supplies
  Now carrying Carbon Plate, rod, tube, and strip.
  www.F1D.biz

  Indoor flying info
  www.IndoorDuration.com





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Received on Sun Mar 19 2006 - 11:54:52 CET