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Naval Group prints first propeller for powering French warship January 13 France's Naval Group announced it had 3D-printed the world's first propeller for use on an operational mine hunter of the French navy. (Naval Group photo) PARIS — France’s Andromède mine-hunting ship is now being propelled by a 3D-printed propeller designed and manufactured by Naval Group, the company announced on Wednesday. Emmanuel Chol, director of Naval Group’s Nantes-Indret site where the propeller was made, said, “It is the largest metal 3D-printed thruster ever to have been manufactured and the fir...