In efforts to be environnmentally friendly, Boeing is starting ground and flight testing on a newly completed research project called the “Fuel Cell Demonstrator.” This new airplane “uses a Proton Exchange Membrane (PEM) fuel cell/lithium-ion battery hybrid system to power an electric motor, which is coupled to a conventional propeller. The fuel cell provides all power for the cruise phase of flight. “ Boeing spokesperson commented that “‘given the… Read More: http://www.trendhunter.com/trends/boeing-working-on-fuel-cell-airplane/