Need a reliable motor for your RC airplane? This 1503 brushless motor is built to perform! Made from aluminum alloy and copper, it's sturdy and durable while still being compact and lightweight (about 18mm x 7mm without the base). That means it won't add unnecessary weight to your aircraft, which is crucial for good flight performance. It runs on 7.4V input voltage with a no-load current of 0.3A and internal resistance of 0.5Ω. The installation is straightforward - just connect the wires and you're pretty much good to go. It's designed specifically for 4-axis remote control airplanes and works with various models. The craftsmanship is excellent, giving it a clean, professional look. You get 4 motors in the package, which is perfect if you're building a quadcopter or need replacements. Whether you're a beginner getting into the hobby or an experienced RC enthusiast, these motors offer good performance without breaking the bank. Reliable, easy to install, and built to last!