Subject: Help for windshields
From: Rotary Engine
Date: 2/2/2011, 5:33 PM
To: AAA Put this in the To box

  Does anybody know of a company that builds
  windshields for experimental aircraft?

  Paul Lamar


  This is the guy I used in Grass Valley Ca.
  Ray Poquette 530-272-2556
  www.thermotecusa.com <http://www.thermotecusa.com/

  Him and one other company advertise in the back of Sport Aviation.

  I used my mold, which I learned was a very hard thing to make right.
  Took three tries before I got
  a windshield you could see through with out getting sea sick.

  Mark K
  MSK6 20B

  What was the problem with your mold Mark?
  I may have to build a mold unless I can find the people
  that made KIS Cruiser windshields in the first place.


  Paul Lamar


-- 
I had started with the part that I had cut out of the original piece of
fuselage which was a couple of layers of 7781 and epoxy resin over the
foam blocks I had sanded to shape. That mold literally collapsed when
the hot plastic touched it. You need to use a high temp polyester resin
and lay it up about 1/4 thick. The mold also needs to be a constant
thickness apparently or the plastic cools at a different rate and messed
up the optics. The third try was just refining the shape, smooth was not
good enough, having a constant radius and such was important. If you can
avoid making a mold I would, or maybe someone out there knows a better
way to do it. This was my first try.

Mark K
MSK6 20B

That is a male plug mold. Is that what they wanted?

That looks exactly like a cruiser wind shield.

Paul Lamar


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