Aeronautic Instruments Section 4: Direction Instruments

Author:	Franklin, W. S.
Additional Authors:	Stillman, M. H., Sanford, R. L., Warner, John A. C., Sylvander, R. C.
Year:	1923
Document Type:	N/A
Series:	NACA Technical Reports
Report Number:	NACA-TR-128
Link:	https://digital.library.unt.edu/ark:/67531/metadc65778/