Helicopter rotor blade
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 24, 1984
Grant Date -
N/A
app pub date -
Mar 13, 1981
filing date -
Mar 28, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A helicopter rotor blade is disclosed having a root end for attachment to a rotor head, a tip end defining the end of the blade fartherest from the root end with a central portion of aerofoil section extending between and attached to the root end and the tip end to define a rotor radius wherein an outboard region of the central portion has a negative basic pitching moment coefficient of absolute value not less than 0.02 and an inboard region having a basic pitching moment coefficient more positive than that of the outboard region.
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Cited Art Landscape
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