DHC and Pratt & Whitney Canada are preparing to heavily modify a retired Dash 8-100 turboprop that will see half of its traditional propulsion replaced with a hybrid design. For the project, Pratt is designing a “new small engine” for sipping fuel at altitude. The 39-seat aircraft will have 20 to 24 battery packs to drive a 1 megawatt electric motor working in tandem with the new engine, providing the necessary horsepower when it’s needed most — at takeoff and climb.