A 24-Volt Airplane Motor?

Dean Sigler Batteries, Biofuels, Electric Powerplants, Hybrid Aircraft, Sustainable Aviation 2 Comments

One of the big surprises in last month’s webinar hosted by the EAA and presented by Brian Carpenter of Rainbow Aviation Services/Adventure Aviation was the 24-Volt motor being developed for the EMG-6 ultralight motorglider. High and Low Voltages Many, if not most of the electric motors flying on existing craft are higher voltage units.  For sake of an off-handed definition, we’ll divide low and high at below and above 50 Volts, something OSHA delineates in its regulation 29 CFR 1910.303(g)(2)(i), which “generally requires “’live parts of electric equipment operating at 50 volts or more’ to be ‘guarded against accidental contact by use of approved cabinets or other forms of approved enclosures’ or by other specified means.”  In its explanation, the …

Bosch Builds e-Kart with Monster Torque

Dean Sigler Electric Aircraft Components, Electric Powerplants, Hybrid Aircraft, Sustainable Aviation 0 Comments

Robert Bosch GmbH has developed an “e-kart” producing 20 kilowatts from two motor-generators, and 300 Newton-meters (221 foot-pounds) of torque, a number Bosch refers to as “sporting.” It would be nice to know how much this cart weighs, but Autoweek relates, “The only thing Bosch isn’t saying for now is just how long the e-kart can run on that battery, assuming 10/10ths driving, and how much the battery and powertrain weigh.” Otherwise, we know the e-Kart goes from 0 to 100 kilometers per hour (62 mph) in under five seconds and can squeal its tires “with just a tap of the pedal.”  A guesstimate of 400 pounds for the total vehicle and driver weight would probably not be too far …