A new motor from Australia, the MagniX Magni5, promises 300 kilowatts (402 horsepower) from a 53-kilogram (116.6-pound) package, or about five kW per kilogram. This is competitive with other power-dense permanent magnet motors. The Magni5 claims an absolutely flat torque curve (more a line, really) from zero to 2,500 rpm, producing 1,000 Newton-meters (737.5 foot-pounds) throughout its revolution range. This is a great deal like steam locomotive performance. Its 444 millimeter (17.5 inches) diameter and 275 mm (10.8 inches) size is perfect to hide behind a propeller spinner. The torque should guarantee a good rate of climb, and might be a worthy candidate for powering a Pikes Peak International Hill Climb contender. The company certainly seems to be on track for designing around aircraft use, promoting their expertise and that of partners with a “Strong background in [the] FAA certification process.” MagniX claims, “The magni5 uses a combination of advanced electromagnetic designs and materials, optimized motor topology, and a proprietary …
