发明名称 |
BLADE PROFILE FOR FLYING VEHICLE MAIN ROTOR AND MAIN ROTOR BLADE OF SUCH PROFILE |
摘要 |
<p>aviation. SUBSTANCE: blade profile includes upper surface 2 and inner surface 3 between leading edge 1A and trailing edge 1B; convexity of these surfaces defines locus. According to present invention, magnitude of ratio of maximum convexity to thickness varies linearly with relative thickness of profile 1 and ranges from 0.13 to 0.19 for relative thickness of 7% of chord C and from 0.18 to 0.24 for relative thickness of 15% of chord C. EFFECT: improved working characteristic at low lift and high Mach numbers. 8 cl, 13 dwg, 7 tbl</p> |
申请公布号 |
RU2191717(C2) |
申请公布日期 |
2002.10.27 |
申请号 |
RU20000101837 |
申请日期 |
1998.06.05 |
申请人 |
ONERA (OFFIS NAS'ONAL' D'EHTJUD EH DE RESHERSH AEH;EHROKOPTER |
发明人 |
RODD ANN MARI;RENO ZHOEHL';TIBER ZHAN ZHAK |
分类号 |
B64C11/18;B64C27/467;(IPC1-7):B64C11/18 |
主分类号 |
B64C11/18 |
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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