| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary wing system for a helicopter that facilitates control of an airframe when catching a gust of wind.SOLUTION: A rotary wing system for a helicopter includes a rotor mast 2, an even number of rotary wings 3 with base parts each supported by the rotor mast, and a power source rotationally driving the rotor mast and rotating the rotary wings around the axis line circumference of the rotor mast. The rotor mast is sandwiched between the rotary wings of even number by two pieces, which are extended in the diameter direction of the rotor mast to form a pair. Also, the base parts of two pieces of rotary wings disposed at equal intervals in the circumferential direction of the rotor mast and forming the pair are integrally connected with each other, and supported by a support shaft provided perpendicularly to the rotor mast, swingably in one piece to each other in the circumference of the common axis line extending in the diameter direction of the rotor mast. The support shaft provides an elevation angle from a horizontal attitude to the rotary wings, and also supports the rotary wings in the position between the before-and-after wing tips of decreasing the elevation angle when receiving wind pressure from the front part in the rotating direction of the rotary wings. |
