The 60 x 60 x 76-mm San Ace 60CR 12-Vdc counter-rotating fan provides airflow to 2.26 m3 /min and static pressure to 550 Pa, said to be the highest in the industry. Available in S- and H-speed models, ...
General Electric (GE) Aviation and NASA have confirmed they are teaming on wind-tunnel tests of counter-rotating fan-blade systems for “open rotor” engine concepts. Interest in open rotor research ...