USE OF GLASS & FIBERGLASS IN BOEING AIRPLANE DESIGN & CONSTRUCTION 75182

This educational film by Boeing Aircraft, "Wings of Glass", shows how the company uses innovative techniques to use glass, fiberglass and other glass and plastic composite materials to produce lighter, stronger aircraft components. The Boeing 727 and 747 aircraft are shown, as well as the assembly lines in which highly skilled workers painstakingly create many of the aircraft components by hand and using precision machinery.

The honeycomb structure of many internal components is shown as the Boeing 747 extensively used fire-resistant honeycombs from Hexcel Composites using DuPont's Nomex aramid fiber paper. Honeycomb structures are natural or man-made structures that have the geometry of a honeycomb to allow the minimization of the amount of used material to reach minimal weight and minimal material cost. The geometry of honeycomb structures can vary widely but the common feature of all such structures is an array of hollow cells formed between thin vertical walls. The cells are often columnar and hexagonal in shape. A honeycomb shaped structure provides a material with minimal density and relative high out-of-plane compression properties and out-of-plane shear properties.

Man-made honeycomb structural materials are commonly made by layering a honeycomb material between two thin layers that provide strength in tension. This forms a plate-like assembly. Honeycomb materials are widely used where flat or slightly curved surfaces are needed and their high Specific strength is valuable. They are widely used in the aerospace industry for this reason, and honeycomb materials in aluminum, fibreglass and advanced composite materials have been featured in aircraft and rockets since the 1950s. They can also be found in many other fields, from packaging materials in the form of paper-based honeycomb cardboard, to sporting goods like skis and snowboards.

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