Energy efficient aircraft propulsion: Contra-Rotating Open Rotor (CROR)
Energy efficient aircraft propulsion: Contra-Rotating Open Rotor (CROR)
Contra-Rotating Open Rotor (CROR) technology is an innovative type of aircraft propulsion system employing two rotors, positioned one behind the other and rotating in opposite directions. The image shows the complexity of the interactions between CROR’s two rotors due to the development of rotor blade wake and tip vortices.
