Wind Tunnel Tests on Autorotation and the "Flat Spin." (1928)
NASA Technical Reports Server (NTRS) · leaf 14
APPENDIX STRIP METHOD ANALYSIS Following is the strip method derivation of the expressions for torque and force coefficients … p (F sec AaY Fig. 16.—Wing element in autorotation 2 (2) = q (sec^ Aa) The total Aa being the algebraic sum of the angle of attack of the element in question and arr torque for the wing is therefore Jb/3 ^3) C\y (sec^ Aa) Ay ■h'% and reduced to nondimensional coefficient form A ghS~q¥i 1 r*^' (4) =…
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
