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The only way to go is brushless motor with vector control, most efficient, need small motor for big power. take a look at microchip, they have a range geared up for motor control. PIC18F4331, cool chip! Take a look at IR for 3 phase drivers. Lots of meaty IGBT's or MosFe'ts about. Supprisingly, The leaders in this field are airomodellers? (anoracks)(Geeks)? Beautifuly engineered brushless motors that can swing a 10 X 6 prop at 10,000 RPM, weigh 32 grams and draw 20 Amps from some excotic chemical battery (Lithium Ion) that gives you 10 minutes of flight and might burst into flame at any moment. All made in China! Now, where's my scale Mustang P51D, Cadalac of the sky, all made with light ply and balsa wood. If I make a low pass and a slow roll will that cool chick over there fancy me?