2-Stroke Tuned Expansion-Chamber Exhaust Cone-by-Cone Unroller (.DXF)

Deterministic Blair/Jennings finite-amplitude exhaust wave-reflection timing + oblique truncated-cone lateral surface development engine (.dxf, .svg, .pdf) built for KTM, Yamaha, Rotax, TM Racing — zero-upload ephemeral Wasm RAM execution.

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