Two aircraft are getting lots of buzz lately for their advancement of aviation technology. *** First up is the electrified Cri-Cri, which looks like a toy but is in fact an important joint electric R&D project of EADS Innovation, Aero Composites Saintonge and the Green Cri-Cri Association. *** The four-engine Cri-Cri originally debuted as a gas-engine powered, homebuilt acrobatic stunt plane many years ago. EADS modified the Hobbit-sized twin to serve as testbed project for developing electrical propulsion systems on helicopters, drones and other aviation platforms for the future. *** The original stunt plane had two piston mills, maxing out around 30 total horsepower. The all-electric Cri-Cri replaces those with four brushless electric motors. *** The “go-gas” comes from LiPo, or Lithium polymer, batteries, all the rage in RC modeling circles for years for their comparatively high energy density. *** Brushless motors boast 80% or better efficiency, compared to the 20% or less of average internal combustion engines.
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