Unicopter ~
Rotor - Blade - NACA 230xxOverview:
xx
Notes that will eventually be moved to lower level pages:
Alpha at zero lift looks like -1.4.
[Source ~ TWS p.498] Same as VR-7.This is/was a very popular blade. For a list of helicopters that used it see
UIUC Airfoil Data SiteSince this airfoil grouping has a better lift/drag ratio than the NACA 00xx, perhaps these blades should have a shorter span than the NACA 00xx blades.
Consider the idea of taking the spar and torque tube, which was developed for the NACA 00xx, and milling it on the CNC to suit the NACA 230xx. Overlay the spar over the NACA 230xx a various sections to see if it should work.
Working Papers:
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Rotor - Blade - NACA 2300xx - |
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Rotor - Blade - NACA 230xx - |
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Last Revised; July 18, 2005