European Aeronautic Defence and Space Company (EADS) has been heating up some batteries lately, announcing production plans for the E-Fan prototype unveiled at the 2012 Paris Air Show and showing a four-seat derivative, the 4.0. Both share the twin-motor ducted fan configuration that makes the trainer and light electric airplane look like an A-10 Warthog, but with much less fearsome aspects. Tony Osborne, reporting in the May 8 online Aviation Week and Space technology, reports, “To produce Europe’s first wholly electric-powered aircraft the Airbus Group is partnering with French industry and entering the light aircraft market. A new subsidiary, VoltAir [lovely French pun], will be set up in the coming months to develop and produce the two-seat E-Fan 2.0 and the four-seat E-Fan 4.0. The two models are being aimed at the general aviation market, and officials say prices will be competitive with those of current piston-engine light aircraft—around $300,000—but with operating costs that are less than a fraction of …