Helicopter with noise and vibration damping transmission mounting

摘要

A helicopter (1) is described that comprises: a rotor (3); a fuselage (2); a drive transmission unit (7) operatively connected to the rotor (3); a support body (14), which supports the transmission unit (7); and constraining means (21) interposed between the support body (14) and the fuselage (2); the constraining means (21) in turn comprise a crosspiece (21) connected in a fixed manner with respect to the support body (14) and having a first lying plane (P); the crosspiece (21) is formed in part by a metallic material and in part by a visco-elastic material.