July 29, 2024August 1, 2026

Materials used in 787 body

Infographic showing materials used in the Boeing 787 body, including fiberglass, aluminum, carbon laminate composite, carbon sandwich composite, and aluminum/steel/titanium. A pie chart shows total materials by weight: composites 50%, aluminum 20%, titanium 15%, steel 10%, other 5%; noting the 777 uses 12% composites and 50% aluminum by comparison.

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Technical diagram showing the composition of materials used in Boeing 787 aircraft construction, including fiberglass, aluminum, carbon composites, and titanium components. Includes pie chart comparing material usage by weight between 787 and 777 aircraft models.

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As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.

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