Blistering power for 64mm planes...3500kv outrunner mated to a five blade fan. While it will work on 3s, it really comes into its own with 4s, it puts out over 700 grams of thrust on only a 4s 1300 pack. You don't need to load up your plane with a ton of batteries, which cancels out any thrust gains in many other upgrade installations. A 50a ESC is plenty, it's pulling about 40a and 575 watts on 4s on 20c cells. Comes with motor and fan unit. Less weight and a heck of lot less cost than others, too.