Electric powered aircraft. And one company with a research investment is Sonex Aircraft. My interest in electric motors/power originates from one of my hobbies with RC airplanes and fast electric boats all powered with electric motors. For the majority of speed records in the modeling world of boats and airplanes, the power is supplied by brushless motors and lithium polymer batteries. Battery chemistry evolves on a monthly basis with the production of smaller and lighter batteries that pack more electrons. And we are talking speed here! The current straightaway speed record for a model boat is just over 140 mph! Yes ..... miles per hour. In relation to real world aircraft, Sonex Aircraft, LLC and AeroConversions recently unveiled their E-Flight Initiative for Sport Aircraft Alternative Energy Research and Development. Read more here: http://www.sonexaircraft.com/press/releases/pr_072407.html