Gnome Omega 7 Cyl. Rotary on Experimental Stand (Early 2-Valve Version). This is a meticulously crafted Blender 4.4 model of an early variant of the legendary and championship-winning Gnome Omega 7-cylinder rotary engine, mounted on an experimental test stand. This particular version features the distinct characteristic of two overhead valves per cylinder and individual intake manifolds, a design feature of the earlier production models. The Gnome Omega engine family achieved significant historical milestones between 1909 and 1915, powering aircraft to numerous world records, including the first to break the 100 km/h speed barrier. Engine Specifications (Early 2-Valve Version): Type: Rotary, 7 cylinders, 2 valves per cylinder, air-cooled, individual intake manifolds. Power Rating: Typically around 37 kW (50 hp) at 1,200 rpm (may vary slightly depending on the specific sub-variant) Displacement: 7.98 liters (488.5 cubic inches). Bore and Stroke: 110 mm (4.33 in) x 120 mm (4.73 in) Weight: Approximately 75 kg. The early Gnome Omega, with its two-valve configuration, still presented the unique handling challenges inherent to rotary engines due to the substantial gyroscopic forces generated by its rotating mass (around 70 kg). However, it offered superior cylinder cooling compared to contemporary inline engines. The later "monosoupape" (single-valve) version was developed as a further refinement. Blender Model Features: This Blender model is rigged for animation. Simply rotate the central null object (ring) to observe the linked movement of the attached magneto and chain drive. For precise manipulation of individual components, it is highly recommended to use the "Local" transformation orientation in Blender, as the model incorporates movable parts and animation dependencies. I hope you enjoy working with this historically significant early variant of the Gnome Omega engine and that it enhances your creative scenes.