The Altitude Effect on Air Speed Indicators II (1923)
NASA Technical Reports Server (NTRS) · leaf 34
ptions as to standard conditions. In connection with these curves it should be remembered that a given percentage error in the effi- ciency or pressure-ratio involves an error in the indicated speed of only half that amount. Comparison of curves for same type of nozzles.—One feature of the… … a4 as ~o 4 8 ao 16 ta Altitude in thousands of fee f Fig. 13.—Viscosity effect. of the curves obtained for different tubes of the same kind, tubes which were as nearly alike as they could be made under conditions of quantity production. The results obtained for the three Navy type Zalim nozzles,…
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