Selection of an optimal basic training aircraft using hierarchy grey relational analysis

The purpose of this study is to make the optimum selection among the alternatives considering three basic training aircraft (KAI KTX-1, T-6A TEXAN II, EMB 314 Super Tucano) in an environment of multiple criteria and uncertainty. The performance assessment of the weapon systems is a multi-level process and has multiple attributes. In this respect; firstly, five performance criteria and 22 dependent sub-performance criteria (index) were obtained during the interviews with the field experts. Hierarchies were defined by using Analytic Hierarchy Process (AHP) and weights were assigned for the criteria and the index. Grey Relational Analysis (GRA) was used to determine the priority for each criterion and indice. Consequently, AHP and GRA methodologies were integrated and the problem was solved using Hierarchy Grey Relational Analysis (HGRA).