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Archive for March, 2011
Posted by Hobster | Mar 20, 2011 @ 03:10 PM | 3,143 Views
Question: Would my Mini Graphite wing (with MH32 aerofoil section) be better suited to high speed DS (300mph+) than my Opus MCT (RG14 section) - ignoring for now strength!

XFLR5 suggests MH32 is lower drag than the RG14 at Re 2.0e+06 to Re 3.0e+06 at Mach 0.4 to 0.5. Or am I using XFLR5 to far outside its design remit - computational assumptions being stretched too far etc?

Images show plots for up to 4 aerofoil sections: MH32 (as used on Mini Graphite), RG14 (Opus MCT), JM26 (Dynamic 80), RK40 (Dynamic 60). Graphs show MH32 lower Cd than RG14 and RK40.. but higher than JM26.