Standard Nomenclature for Airspeeds with Tables and Charts for use in Calculation of Airspeed

In analyses of aerodynamic data very often wind-tunnel or flight measurements must be covered into airspeed and related quantities that are used in engineering calculations. Attempts to accomplish such conversion by use of available methods have been complicated by the diversity of symbols and definitions and by the necessity of referring to equations, charts, and tables from a number of different sources. standard set of symbols and definitions of various airspeed terms that were adopted by the NACA Subcommittee on aircraft Structural Design and a compilation of the necessary equations, charts, and tables for converting measured pressures and temperatures into airspeeds, determining Mach numbers and Reynolds numbers, and determining other quantities such as dynamic and impact pressures that are of interest are therefore presented herein. In the preparation of the present paper, results that have been included in previous papers have been extended to include higher altitudes and quantities not given in the previous papers, since recent requests have indicated the need for such an extension of standard-atmosphere tables.