Jet noise is a significant sound source in the take-off and landing phases of developing commercial supersonic aircraft and needs to be considered in the design phase. The investigation concerns the jet noise prediction model developed by Stone of Modern Technologies Corporation. Code is implemented using an object oriented programming paradigm. As a result, the product of this effort is now a part of the AVIC noise prediction framework. Three test cases with different geometries and operating conditions were executed. The results of our calculations were compared with both the experimental values and with those of CIRA. A good agreement is demonstrated among the three, particularly between our calculations and those of the CIRA calculations, verifying the reliable implementation of the code. The results of this research can aid in the acoustic design of engine nozzles in the preliminary design phase of the next generation of commercial supersonic aircraft, thereby reduce noise emissions in the vicinity of airports.