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Monday, January 19, 2009

Celstar wings

Here are a couple of photo's of the wing rebuild. The wings are now all sanded and the skins repaired.

The shear web grove is cut out and a 3mm ply shear web cut to size. The wing joiner tube cut out is made and the alu tube test fitted. The cut out in the ply for the tube is for alignment not strength , that comes from the carbon tows. The alu tube is rough sanded to give a rough surface for good adhesion.

A mix of epoxy, micro balloons and cotton glass flox is used to bond in the shear webs, tubes and ply strip fillers. The pair of wings with the joiner are lined up
and clamped on a flat board until cured. As this is a tapered wing this is done upside down which will impart a slight diherdral.

After it has cured the wings are seperated and the top groove sanded out with a dremal, down to the shear web/ply.

The Carbon tows are cut 2 x long to go out past the servo bay (another weak point) 2 x medium and 2 x short 60k, the top and bottom are the same no of carbon tows.

Thats it for now. Filling, sanding, end ribs and recovering next.

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