Boeing Model 247D First modern airliner All-metal, twin-engine, low-wing monoplane – 180 MPH an aircraft featured on the Hall… Boeing, P&W Wasp, twin-engine
LOCKHEED Electra 10A and 10C Amelia Earhart was flying a Lockheed Electra 10E when she disappeared over the Pacific in 1937.… Amelia Earhart, Lockheed Electra 10, P&W Wasp, twin-engine