The ETH Fan Unit - 56mm inside diameter, 71.34mm outside diameter with inlet ring attached, 31mm long, 21mm inside diameter of motor housing. 3-bladed rotor, aluminum rotor adapter for 3mm shaft, motor mounting screws and allen-wrench included. Injection molded fan unit with smooth intake ring for high thrust. Unit weighs 1 oz. When matched with our ETH5512 Motor it produces over 20 ounces of thrust with a 3s LiPo. It will produce 30-35 ounces of thrust when paired up with our MMC5156 Jet Screamer motor on a 4s LiPo.
SF 66mm EDF - 66mm (2-9/16") inside diameter, 60mm (2-3/8") long with inlet ring, 81mm (3-3/16") outside diameter with inlet ring, 68mm (2-11/16") outside diameter without inlet ring. Accepts up to a 29mm diameter motor with a screw mount spacing of 16mm and a shaft size of 2.3mm. Weighs 1.4 oz. Impeller has 6 blades; when using high KV brushless motors like our ETH5512 or Jet Screamer a watt/amp meter should be used to determine if 3 of the blades should be removed, making it a 3-bladed impeller, to reduce the amp draw.
Alfa 59mm 5 Blade Fan - Upgrade your Alfa A-4 Skyhawk with this awesome fan! Has a 59mm rotor diameter. When matched to a Jet Screamer outrunner and the Alfa 3mm Rotor Plug, your EDF model will be a rocket ship. We fly our EDF's with this fan, Jet Screamer motor and 4s 2100mah LiPo for peak performance!