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Topsky 1.0 produced by Topsoaring is an excellent model for these who just start DLG or F3K.  The fuselage is designed in Solidworks, and it is built in aluminum molds taken from CNC (computer numeric controlled) machined master patterns , constructed from fiberglass and unidirectional carbon, light and strong (31grams with carbonfiber cap). The Slender fuselage may reduce Air resistance when launched in high speed and flying in the sky.  Wing core was cut precisely by CNC foam cutter, undirection carbon leading edge and trailing edge, carbon fiber wing tip. Carbon laminate wing spar was put in the slot, so the surface is very smooth, no convex. It keeps the wing foil so well.