2016 Perm University Herald ECONOMY doi 10.17072/1994–9960–2016–3–92–104 UDC 330.341.42:621.45 LBК 65.20+39.55 METHOD FOR TECHNICAL AND ECONOMIC EVALUATION OF THE EFFECTIVENESS OF RELIABILITY IMPROVEMENT OF MILITARY AIRCRAFT GAS-TURBINE ENGINES IN THEIR AFTERSALES SUPPORT BASED ON OUTCOME PERFORMANCE MEASURES * M.R. Asadullin, Deputy Chief of customer relations department of “Aviadvigatel” JSC E-mail: msmk_90@mail.ru Joint Stock Company “Aviadvigatel”, 93, Komsomolsky prospekt, GSP, Perm, 614990, Russian Federation The article describes a conflict between interests of the state customer and the prime contractor on the issue of aeronautical systems and subsystems reliability improvement during its aftersales support. <...> The conflict between interests is shown to arise under the traditional approach to payment for the prime contractor’s services on a basis called “costs+”. <...> A long validity term of such contracts and independence of performance payment amounts from the contractor’s actual expenses motivate the private partner to hold some activities aiming at systems and subsystems reliability improvement. <...> The main provisions of the method for technical and economic evaluation of the effectiveness of aeronautical systems and subsystems reliability improvement are presented thorough the example of a fleet of engines operated within a group of military transport aircrafts with their aftersales support based on outcome performance measures. <...> The method is based on a simulation model of engines fleet operating which allows for the measures of technical and economic evaluation to be identified: average availability of the military transport aircrafts group during the contract validity period, state customer’s operating costs and the prime contractor’s profit. <...> It is experimentally shown on the developed method basis that when the fleet of engines is supported aftersales based on outcome performance measures the prime contractor has an economic interest to improve engines reliability above the requirements specified in the regulatory documentation. _________________________________________________________________________________________ Keywords: technical and economic evaluation, simulation modeling, availability of aeronautical systems and subsystems, conflict between interests, aftersales support, outcome performance measures, gas turbine aircraft engine, gas turbine engine reliability, operating time between unscheduled removals, military transport aircraft. <...> Under such conditions, the enterprisemonopolist doesn’t have an absolute interest in © Asadullin M.R., 2016 <...>