The General Theory of Blade Screws Including Propellers, Fans, Helicopter Screws, Helicoidal Pumps, Turbo-Motors, and Different Kinds of Helicoidal Blades

Author:	de Bothezat, George
Year:	1919
Document Type:	N/A
Series:	NACA Technical Reports
Report Number:	NACA-TR-29
Link:	https://digital.library.unt.edu/ark:/67531/metadc65648/