Ultra-Light Coaxial Helicopter Concept Total Weight: 350–400 kg Main Rotor System: Configuration: Coaxial (two stacked main rotors) Each Main Rotor: Blade Count: 4 blades Diameter: Approximately 3.2 meters Power Source: Piston engine (e.g., Rotax 915 iS) Tail Rotor (Electric): Blade Count: 2 blades Diameter: Approximately 0.8 meters Power Source: Electric motor (e.g., Hirth 3203) Design and Structure: Fuselage: Modern, aerodynamic, and minimalistic with a futuristic, streamlined design. Cockpit: Designed for one or two seats, featuring high-tech instrumentation. Power Transmission: Direct power transfer (excluding any sun gear gearbox); the system uses a direct coupling between the engines and the respective rotors. Visual Style: A blueprint-style or schematic concept art, with clear, annotated labels indicating specifications (total weight, rotor diameters, blade counts, engine types, and key component details). Emphasis on a creative, futuristic, yet practical design that showcases Mehr sehen