Preliminary investigation of the effectiveness of a sliding flap in deflecting a propeller slipstream downward for vertical take-off

Author:	Kuhn, Richard E.
Year:	1956
Document Type:	N/A
Series:	NACA Technical Notes
Report Number:	NACA-TN-3693
Link:	https://digital.library.unt.edu/ark:/67531/metadc55952/