Method for calculation of ram-jet performance /

A method utilizing precalculated solutions graphically presented for calculating subsonic and supersonic ram-jet thrust coefficients and other important quantities is presented with the associated equations and graphs. Using the assumption of constant values of specific-heat ratio and gas constant equal to those of standard air, the thrust-coefficient calculation has been reduced to a few simple operations. Correction methods are presented to account for variations in specific-heat ratio and gas constant. The correction to the thrust coefficient for a typical set of operating conditions may be of the order of 5 to 10 percent.NACA TN No. 2357."June 1951."Includes bibliographical references.A method utilizing precalculated solutions graphically presented for calculating subsonic and supersonic ram-jet thrust coefficients and other important quantities is presented with the associated equations and graphs. Using the assumption of constant values of specific-heat ratio and gas constant equal to those of standard air, the thrust-coefficient calculation has been reduced to a few simple operations. Correction methods are presented to account for variations in specific-heat ratio and gas constant. The correction to the thrust coefficient for a typical set of operating conditions may be of the order of 5 to 10 percent.Mode of access: Internet