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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0101547 (1993-08-02) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 13 인용 특허 : 0 |
A helicopter blade tracking system including an apparatus and method having a self-contained light unit on each blade; each light unit being of similar construction and matched in size and weight. Rings of light formed by the light units during blade rotation are observed by the operator during hove
A helicopter blade tracking system including a similar self-contained light unit on each rotor blade, each rotor blade having a tip, each self-contained light unit being matched in size and weight, means fixing each unit adjacent the tip of the blade, each self-contained matched light unit having a
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