A 3D model of a sci-fi helicopter is a futuristic rendition of a conventional helicopter, often featuring imaginative design elements and advanced technology not found in contemporary aircraft. This type of model typically includes futuristic features such as sleek, aerodynamic shapes, unconventional propulsion systems, advanced weaponry, and high-tech cockpit designs. It's popular in sci-fi genres, gaming, and visual effects, appealing to enthusiasts of futuristic technology and creative design concepts.