Turbo Compound Piston Engines. Almost magic tech.

The Douglas DC-7 and Lockheed Starliner were the Superprops of airliners. They used Wright Turbo Compound Engines which at first glance appear to be in violation of the laws of physics. Please support this channel: Paypal: mistydawne2010@ Links: Turbo vs Supercharging: Spitfire exhaust: TWA Flight Center and Lockheed Starliner / Constellation: WW2 Bomber Twin Tail design reasons: