Power Plant Induced Draft Fans on Left Side , 10,727 hp, 710 rpm - Balanced. Booster Fans on Right, 8700 hp, 885 rpm - Balanced. Forced Draft Fan Not in View, 4500 hp, 1785 rpm - Balanced and More! And, Even Fans Down to 1 hp. Other Rotating Equipment Balanced Also. See the About page for more information.