Powerful and dependable, the Rolls-Royce Merlin aero engine was fitted to many of the most significant warplanes of the Second World War—from the Spitfire and Hurricane to the Lancaster. The engine’s ...

Add Yahoo as a preferred source to see more of our stories on Google. GettyImages 528673160 Michael Cole Corbis via Getty Images 2 Powerful and dependable, the Rolls-Royce Merlin aero engine was ...