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Aerospace Applications Marine Composites Aerospace Composites The use of composites in the aerospace industry has increased dramatically since the 1970s. Traditional materials for aircraft construction include aluminum, steel and titanium. The primary benefits that composite components can offer are reduced weight and assembly simplification. The performance advantages associated with reducing the weight of aircraft structural elements has been the major impetus for military aviation composites development. Although commercial carriers have increasingly been concerned with fuel economy, the potential for reduced production and maintenance costs has proven to be a major factor in the push towards composites. Composites are also being used increasingly as replacements for metal parts on older planes. Figure 1-50 shows current and projected expenditures for advanced composite materials in the aerospace industry. Figure 1-50 Advanced Composite Sales for the Aerospace Industry. [Source: P-023N Advanced Polymer Matrix Composites, Business Communication Company, Inc.] When comparing aerospace composites development to that of the marine industry, it is important to note the differences in economic and engineering philosophies. The research, design and testing resources available to the aerospace designer eclipse what is available to his counterpart in the marine industry by at least an order of magnitude. Aircraft development remains one of the last bastions of U.S. supremacy, which accounts for its broad economic base of support. On the engineering side, performance benefits are much more significant for aircraft than ships. A comparison of overall vehicle weights provides a good illustration of this concept. 57PDF Image | Marine Componsites
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