The Altitude Effect on Air Speed Indicators II (1923)
NASA Technical Reports Server (NTRS) · leaf 43
0 m.p.h.. 58.8 Altimeter reading, corrected from flight-history test,20 feet.. 14,600 Barometric pressure corresponding to corrected altimeter reading (from Bureau of Standards altitude tables) mm. mercury.. 443.0 /■i=58.8X44.7=2, 630 centimeters per second. o=0.000785 gram per cubic centimeter,… … Vi --M.P.H. Fio. 18.—Correction curves for use in flight with Army and Navy Zahm Pitot-Vcnturi tubes. Example II. The following observations were made on a dirigible airship during flight: Indicated air speed (corrected for instrumental errors) m.p.h. 15 1,500 Altimeter reading feet +10 Air…
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