Assessment of PD-14 engines protection from damages in MS-21 plane

This article includes there sults of an estimated assessment of PD-14 engines protection level are given in configuration of the MS-21 aircraft from damages by foreign objects which can be got into engines from an airfield surface during taxing, take-off and landing stage of the aircraft. For an assessment of PD-14 engines protection from the damages by foreign objects got by landing gear wheels and a vortex motion the calculation methods based on generalization of model results, bench and original researches of various aircraft types were used. The assessment of PD-14 engines protection from getting of reverer jets was carried out by means of the ANSYS/CFX program. The conducted estimated researches show that security of PD-14 engines from damages by foreign objects to configuration of the MS-21 plane is at the insufficient level. For increase of the MS-21 plane competitiveness, it is necessary to provide engines protection before the plane transfer to the operating organizations.