As studies of more efficient alternate propulsion systems for future airliners accelerate, Safran has become the latest engine-maker to reveal its development road map for hybrid- and electric-engine technology.  The French manufacturer believes that, assuming key technical challenges in energy storage and high-power transmission can be overcome, it may be feasible to develop the first large 100% electrically powered aircraft by 2040. It adds, however, that turbofan improvements will ...

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