Wing spar with a 177 mm chord, created to build a film covered wing for the Axon FPV flyer.Bracing is with spruce and balsa at the COG and the trailing edge, with further cut outs to fit 1.2mm balsa sheeton the trailing and leading edges.The rectangular hole near to the leading edge has been sized to suit a 5g servo which can be glued or screwed from the rear.Can be scaled to suit larger wing sections or the centre spa refitted with 6mm square carbon rod. 20% infil, 2 layers, best to reduce the travel speed to 40 or 45 so the filament desent drag out of the tight corners