Snecma Advances Open-Rotor Wind-Tunnel Tests

By Graham Warwick
Source: Aviation Week & Space Technology
September 16, 2013
Credit: Snecma

Looking 15 years beyond the Leap-1, CFM partner Snecma is heading back into the wind tunnel as it moves toward the ground demonstration of a fuel-efficient, open-rotor engine in 2015 under Europe's Clean Sky civil-aviation research program.

The high-speed aerodynamic test of the 1/5th-scale model in French research agency Onera's large S1 tunnel at Modane will focus on demonstrating the potential fuel-burn reduction with the counter-rotating, open-rotor engine. “Our objective on the open rotor is to reduce fuel burn by 25-30%, compared with the CFM56—and we are very confident we can reach this goal,” says Marc Doussinault, propeller module manager.

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