Strength Characteristics of Plastic-Bonded Plywood

New methods of molding plywood by the bag process, combined with new adhesives, have opened a wide range of possibilities for the use of plywood in aircraft construction. This paper explains some of the more important advantages of plastic-bonded plywood and presents some of the pertinent basic-strength characteristics. The prediction is made that in the near future with gluing technique advancing rapidly, a thin metal covering glued to a plywood core will be used to great advantage in airplanes having high wing loadings. Such construction will combine the high axial strengths of the metals with the good buckling characteristics of the thicker plywood construction.