发明名称 |
Main rotor system for helicopters |
摘要 |
A main rotor is provided for use in a rotary winged model aircraft. The main rotor includes a rotor hub assembly rotatable about a vertical axis and at least two main rotor blades. Each of the main rotor blades extends in a radial direction from the rotor hub assembly. The main rotor blades each include a tip end positioned to lie in spaced-apart relation to the rotor hub assembly and a root end coupled to the rotor hub assembly for pivotable folding movement from an initial horizontal position perpendicular to the vertical axis about a horizontal axis through a desired folding angle of about 90 DEG . Forces transmitted to the rotor hub by the rotor blade during a crash-landing of a rotary winged model aircraft including the main rotor are minimized due to movement of the rotor blades through the desired folding angle. |
申请公布号 |
AU2426395(A) |
申请公布日期 |
1995.11.29 |
申请号 |
AU19950024263 |
申请日期 |
1995.04.24 |
申请人 |
PAUL E. ARLTON;DAVID J ARLTON |
发明人 |
PAUL E. ARLTON;DAVID J ARLTON |
分类号 |
B64C27/39;B64C1/08;B64C25/52;B64C27/00;B64C27/04;B64C27/10;B64C27/32;B64C27/46;B64C27/467;B64C27/605;B64C27/625;B64C27/82 |
主分类号 |
B64C27/39 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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