This 1800Kv motor is ideal for 5- to 8-ounce 3D models as well as 7- to 14-ounce sport and scale planes. It’s extremely quiet and lightweight (just 0.72 ounce!), and it features an integrated prop-saver design. It’s intended for firewall or carbon-tube mounts and comes with a motor mount, prop adapter and all hardware. It costs $50.99.