| 摘要 |
A rotor system of a helicopter comprises a rotor mast (19), a rotor hub (1), at least four, angularly essentially even distributed rotor blades (2, 3) and swash plate struts (15). Said rotor blades (2, 3) are respectively pairwise mounted lag- and flap-stiff to each other with zero offset to said rotor hub (1). The rotor hub (1) is provided with a hollow bearing (20) with at least one further bearing inside (21). A first pair of said rotor blades (2) is mounted on the hollow bearing pivotable in a first flap direction (23) and at least a second pair of said rotor blades (3) is mounted inside the hollow bearing (20) on the at least one further bearing (21) pivotable in a second flap direction (22) substantially perpendicular to said first flap direction (23), and independently of said first pair of connected rotor blades (2). |
