Residents of Vancouver, B. C. were not awakened by the overhead passage of a DeHavilland Beaver Tuesday morning. The electrically-powered floatplane lifted off at around 8:30 a. m. and zipped by quietly, its Magnix motor humming and only its four-bladed propeller disturbing the air. The full-flight video below has the airplane “taxiing” for the first four minutes. Harbour Air took the daring step of publicly test flying an old but spiffily refurbished airplane with a new motor, the paint scheme revealing the location of all major electrical components. Even more daring, Greg McDougall, founder and CEO of Harbour Air piloted the flight. Talk about faith in your product. Engine/Motor Swap The Beaver’s original Pratt & Whitney R-985 engine produced 450 horsepower from its 682 pounds – relatively light for its day. (It was developed in 1929 – two years after Lindbergh’s flight – and put into production in 1930.) Its dual magnetos were a nod to redundancy. The Magni500 weighs …