Analytical Calculation Model of the TV3-117 Turboshaft Working Regimes Based on Experimental Data

The paper presents a practical and relevant analytical calculation model for free turbine turboshaft working regimes engine performance. is based on post-processing method that analyzes series of experimental data, specifically focusing the percentage variations engine’s main parameters from minimum to takeoff regime. data were acquired three different types engines: TV2-117A turboshaft, AI-20K turboprop, Viper 632-41 turbojet. analysis aimed identify, through calculations, certain similarity exhibit nearly constant or within tight limits. These can then be used as approximate constants in model. By utilizing these related parameters, mathematical connection between established; more exactly, known unknown In current case, only regime are requested known, this way, other several engines calculated.