Engines, or anyone else who may know - am trying to get my head around Open Rotors - as per Safran's design.
By eliminating the cowl, you expand the volume of air that can bypass the hot core?
I assume that as the aircraft accelerates to flying speed, and then cruising speed the slipstream around the engine`shapes' the flow of bypass air (much as the cowl would) ensuring a large mass of cool air is dumped into the hot exhaust from the hot air - thereby increasing it's density and thrust?
Or have I got it completely wrong...
