This illustrative O-320-class cylinder model and its rendered images were prepared for A&P Test Ready. Some image-layer surfaces include AI-assisted restyling of our own model renders. The downloaded GLB contains the actual modeled geometry, not those restyled images.
Educational references include FAA-H-8083-32, Powerplant Chapter 1, and Lycoming O-320 Operator Manual 60297-30, Direct Drive Overhaul Manual 60294-7, and Parts Catalog PC-103. These works informed the model; their pages, photographs and diagrams are not distributed here. References are not an endorsement by the FAA, Lycoming, or any manufacturer.
Geometry, finishes and component details are approximate. Exact geometry varies by engine variant. This is not maintenance data, a manufacturer-certified model, or a disassembly/assembly procedure. Use current approved manufacturer instructions for actual aircraft work.
The interactive viewer moves fixed-camera rendered layers; it does not support 3D rotation. The optional GLB download contains 11 assembled mesh groups and no explode animation. Its base PBR materials may look different from rendered images.