How to build perfect balsa wood glider?

Following you will know more about the Balsa wood. Few experiences are as satisfying as watching a model airplane you have built soar through the summer sky. nvnwzhiq A balsa wood glider is easy to build and serves as the perfect primer to flying model airplanes, introducing the builder to building techniques, aerodynamics and flight trimming. Be prepared to spend a few sessions building your model. Each step is fairly simple, but thorough sanding and careful gluing will pay off when your bird takes wing.
Print the plans to scale.
Mark the outline plans on the balsa wood. To transfer the outlines of the plan to the wood cut the outline out and trace around it, or place the plan over the wood and, pressing gently with a ball point pen, follow the outlines. The soft balsa will take the impression of the pen and provide you with a line to cut on. Unless the plan states otherwise the grain of the wood should run along the longest dimension of the piece.
Using the modeling knife, cut out the parts from the plan. Work carefully, taking multiple passes. The wood will cut or split easily along the grain and will be much more difficult to cut across the grain.
Sand the pieces into their final shape. Because the model is made from solid pieces of wood, rather than from a covered frame, most of the shaping of the structure will come from sanding. Start with the edges but avoid for now edges which will be glued together later (the inner edge of the two wing halves, the bottom of the vertical stabilizer and the places on the fuselage where the wing and horizontal stabilizer will be mounted). You can hold identical pieces, like the two halves of the wing, together as you sand so they maintain an identical shape. Once the edges are sanded, you can turn to the surfaces. Using medium grade sandpaper, sand the fuselage and the tail pieces until they are smooth to the touch.
Sand an airfoil into the wing. The airfoil of a wing, along with its angle of attack, is what provides the plane with "lift." The airfoil shape should make the wing rounded along the leading edge, widening toward the center and then tapering almost to a point at the trailing edge.
Sand the inner edge of each of the wings to an angle that will create "dihedral" when the two halves are glued together. The amount of dihedral should be marked on the plan and is measured as the distance each wingtip is from where it would be if the wing were perfectly flat. With the wing's leading edge facing away from you, prop up one half of the wing with a small block so the wingtip is at the proper height. Take a sanding block and place it vertically against the inner edge. Sand until the edge is perfectly flat and perpendicular to the work surface. Repeat with the other wing half.
Glue the two wing halves together. Using blocks under both wingtips to create the proper dihedral, nvnwzhiq apply a bead of glue to the inner edge of each of the wing halves. Press the two halves together. Remove the excess glue. Place a light weight on the wing near the center joint to hold it in place. Measure the dihedral again and make any necessary adjustments. Let the glue dry for a couple of hours
Assemble the plane. Pay special attention to the angle of the horizontal stabilizer relative to the angle of the wing (this is called wing incidence). Check your parts against the plan to be sure the proper angles are maintained as you build. If the wing incidence is incorrect the model will fly poorly. Let the glue dry for a couple of hours.
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