Title: Effect of compressibility on the hovering performance of two 10-foot-diameter helicopter rotors tested in the Langley full-scale tunnel
Description: <a href="http://uf.catalog.fcla.edu/uf.jsp?st=UF003834396&ix=nu&I=0&V=D&pm=1" rel="nofollow">http://uf.catalog.fcla.edu/uf.jsp?st=UF003834396&ix=nu&I=0&V=D&pm=1</a>
Subjects: Rotors (Helicopters, Aerodynamics--Research.