VoltAir made a showing at the recent Paris Air Show, on the same stand as the incredible Concorde-of-the-future Zehst space plane, and though it looks much more conventional, it's almost (if not actually more) important for the future of travel. For though Zehst and other craft like it may shrink the globe with super-fast travel, it's aircraft derived from VoltAir that could change the world sooner. Because VoltAir is a zero-emissions airliner for the rest of us — an all-electric alternative to the planes you've always flown in. VoltAir's magic is all about its pusher-prop ducted fan, and the electric motors that power it. The prop's design is a twin co-axial contra-rotating design, delivering excellent propelling power very efficiently. But what's truly clever are the engines, which would be made of high-temperature super-conducting materials. The engine would be bathed in liquid nitrogen, to drop its temperature to the right operating zone for the wiring which, unlike the copper wiring in a traditional motor, actually only works if cooled. Though this adds a structural burden to the design, it has one astonishing upshot: Superconducting motors would waste almost none of the electrical energy pushed into them, making the plane ultra-efficient. http://www.msnbc.msn.com/id/43556583/?GT1=43001 Please Register or Log in to view the hidden image!