This interactive tree visualization displays the hierarchical breakdown of aircraft components, such as the engine, fuselage, wings, tail, and landing gear, with each subcategory annotated by its percentage representation. The diagram uses a collapsible node layout, allowing users to click on nodes to expand or collapse branches. Built with D3.js, it employs `d3.layout.tree` for positioning and `d3.svg.diagonal` for curved links, rendered as SVG with animated transitions. Node styling and link colors are defined via CSS, with circle markers and text labels for each part.