Qinetix Motor at E-Flight Expo

Dean Sigler Announcements, Electric Powerplants, Sustainable Aviation 3 Comments

QinetiX GmbH in Germany manufactures a motor and controller combined in one case to lower weight and simplify installation.  Their QPD-40, shown at the Aero Friedrichshafen E-Flight Expo and on their web page, seems to exemplify those goals.  Its 12 kilogram (26.4 pound) weight and 40 kilowatt (53.6 hp.) output gives it a power-to-weight ratio of 3.2 kilowatts per kilogram (2 horsepower per pound).

QuinetiX power system combines motor, controller in one case

Running on 60 Volts at a maximum 680 Amperes, the motor produces 212 Newton-meters (156.4 foot-pounds) of torque, swinging a propeller at only 1,800 rpm, allowing for quiet operation.  The liquid-cooled stator and power electronics will require some form of heat exchanger, but probably with fairly low cooling drag overall.

Only 90 millimeters (3.54 inches) thick and around a foot in diameter, the motor should fit neatly into streamlined propeller spinners.  Other uses in automobiles and wind turbines present hopeful potential applications for this neatly-packaged motor.

Comments 3

  1. This is a perfect HP for what I need!!
    If the price is right I would buy one or more! Keep me informed on this great little motor.
    Thanks ,John Low

  2. I am engineering an oscillating winged ornithopter and this motor will work perfect. All enclosed electronics. A new day for flying enthusiast. auclaims@gmail.com

    (Editor’s Question: Can you supply more information on your ornithopter design?)

Leave a Reply

Your email address will not be published. Required fields are marked *