Title: Effect on helicopter performance of modifications in profile-drag characteristics of rotor-blade airfoil sections
Description: <a href="http://uf.catalog.fcla.edu/uf.jsp?st=UF003617559&ix=nu&I=0&V=D&pm=1" rel="nofollow">http://uf.catalog.fcla.edu/uf.jsp?st=UF003617559&ix=nu&I=0&V=D&pm=1</a>
Subjects: Laminar flow, Rotors (Helicopters, Aerodynamics--Research.