Schubeler's carbon composite EDF with a 12-blade 128 mm axial compressor wheel driven by an brushless inrunner motor heralds a revolution for EDF's. Electric ducted fan enthusiasts will love the 74db(A) jetstream like noise from the exhausts at full throttle. It might even convert diehard fans of turbine engines to go electric. The EDF will cost just a fraction of the turbines, minus the complexity and associated headaches.
The DS-94 has a fan swept area of 94 cm² and 10 kg of thrust making it one of the most powerful EDFs on the market. Powered by a high torque, Schubeler designed DSM 6740 motor fitted with 12 carbon stators with 220ºC heat resistant windings and magnets. The 67 mm diameter x 40 mm motor is suspended from the shroud with 4 handmade carbon composite junctions that allows the wires from the 3 motor phases to pass through. This integrated design feature allows unrestricted airflow to the motor without the use of seperate power robbing cooling fans.
Speed ratios used on the design of the 12-blade axial compressor wheel are similar to the ratios of a full scale turbofan. Besides higher efficiency, it has resulted in a perfect optical scale appearence and boasts a sound which can only be compared to full scale jet engines. This impressive 1.4 kg monster will need juice from 14s high discharge Lipos to run efficiently.
Videos: F20 Tigershark fitted with Schubeler DS-94-HST
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