Airplane Engine Assembly — Display Model

OVERVIEW
This complete propeller-engine scene is intended for aviation miniatures, educational displays and workshop dioramas. Visible features include a two-blade propeller and spinner, a detailed engine body, partly open white casing, pipes, cables and mounting elements. This is a digital display resource, not a tested working engine or a certified ready-to-print kit.

DOWNLOAD CONTENTS
The two downloads retain the full-resolution linked OBJ and the complete resource ZIP. The source mesh contains 1,000,106 triangles. Its material library, supplied image resources, English preparation notes and inventory remain available under opaque filenames. Keep the OBJ, MTL and textures together. The archive includes the earlier direct-render reference; the current public cover is a later AI-assisted presentation described below. Neither illustration adds printable parts to the supplied engine.

GEOMETRY AND INTERACTIVE VIEWER
The supplied OBJ reopens as one surface mesh with its existing face assignments, UV coordinates and linked textures. A scene mesh count does not establish that each pictured mechanical element is an independent printable component. Relative source geometry is preserved. The public viewer uses a separate 120,000-triangle, approximately 6 MB display derivative. Its common orientation places the propeller shaft horizontally and the lower casing below the engine. The full downloadable mesh remains unchanged. Viewer dimensions are normalized display coordinates, not verified real-world measurements. Use the full source for fabrication planning.

MATERIALS AND PROPOSED FINISH
The engine body retains the supplied texture appearance: white casing, dark and olive metal, red-orange wiring and a metallic spinner. The cover proposes dark paint on the existing propeller surfaces instead of their original granite bitmap. This is a presentation-only material override; the original bitmap remains in the download. Apparent labels, seams and small mechanical details can be texture artwork rather than raised printable geometry. Inspect the untextured mesh and slicer before expecting those details in a physical print.

DIMENSIONS AND SCALE
No verified real-world engine dimensions, source coordinate-unit convention or scale ratio is provided. Do not infer 1:24, 1:32 or another scale from the image, display board or normalized viewer. Establish one reliable target dimension, measure the full imported mesh and apply a uniform scale deliberately. Check the thinnest blade edges, cables and gaps at the intended size. Resizing affects fragility and printer resolution requirements.

Untested. Establish source units and target size; inspect connectivity, blades, cables, intersections and support access in the full mesh. Resin 0.03-0.05 mm or FDM 0.12-0.20 mm are conditional trial ranges, not validated presets. Interactive mesh is a display derivative.

Prepared for display and download. No physical print has been certified.