专利名称：Vertically staggered helicopter rotor blade
assembly
发明人：Allen A. Arata申请号：US11165655申请日：20050624
公开号：US20060292009A1公开日：20061228
专利附图：
摘要：A helicopter rotor assembly with vertically staggered blades is disclosed. Eachblade travels in a rotational path which does not cross the rotational paths of the otherblades. This arrangement reduces noise because each blade travels in a path which avoidsturbulent or disturbed air from the preceding blades. In one embodiment, the blades arearranged from the lowermost blade to the uppermost blade such that each bladefollowing the lowermost blade will be above the blade in front of it. Since each bladepushes air down to create lift, this vertically staggered arrangement allows the blades totravel through less disturbed air.
申请人：Allen A. Arata
地址：Los Angeles CA US
国籍：US
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