Paul

 For those willing to build with epoxy, I think, the best would be to
 purchase directly made sheets to be glued on rib

 Not the cheapest way, but by far the quickest giving a superb
 result.

 https://www.rockwestcomposites.com/plates-panels-angles/carbon-fiber-plate/carbon-fiber-fabric-plate/plate-carbon-fiber-qiso-tri-axial-gloss-matte-48-x-120-x-0-050-inch-thick-options



 pascal Virlouvet


 Thanks Pascal

 I have the wing rib problem decided. This is a Teflon mold .75 inches
 thick. The procedure is wet out the fabric and place it over the
 center piece hole. Press the rib form into the center mold. the
 flanges will be automatically formed. Put it in an oven set to 200 F.
 Let cure.

 Teflon is good to 500 F.

 Each rib will be precisely the right size. Cut a hole for the spar
 and use  sort pieces of carbon fiber angle to bond and pop rivet the
 rib to the side of the spar.

 This will be much faster then making each ribs out of foam and
 covering it by hand  with fabric glass or carbon.

 Patent applied for :-)

 Paul Lamar


Very nice. It seems feasible to do the spar locator hole the
same way at the same time. Cut an X in the hole and put plug in.

Michael Nash

A little problem with that. The dimensions of the spar will vary
due to load on it. Top and bottom will have varying layers of uni.

A list of spar hole dimensions should be mad for all the rib locations.

 Here is a  stress diagram for a typical wing load more or less.

Paul Lamar

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