rc catamaran 3d model

RC catamaran boat hull, 210mm length, 210mm width, 90mm height. Twin hull design with two outer pontoons (50mm width each) and 80mm gap between hulls. Streamlined shape with flat bottom and slight V hull (6 degrees) for stability and buoyancy. Fully hollow watertight structure with uniform 3mm wall thickness, closed manifold geometry, no holes. Outer hulls include internal cavities for motor mounting at rear with flat mounting surfaces. Include 5mm diameter propeller shaft tunnels exiting rear at 12 degree downward angle. Central platform hollow with large compartment for battery and ESC, open from top. Add internal support ribs for strength. Flat base for easy 3D printing, minimal supports. Smooth symmetrical CAD model, clean topology, STL ready, manufacturable