Motor Sich PJSC and Concepts NREC Announce Successful Design Collaboration Outcome on a High Pressure Ratio Centrifugal Compressor for a Helicopter Gas Turbine Engine

January 24, 2011 – Motor Sich PJSC, Zaporozhye, Ukraine, and Concepts NREC, Wilder, Vermont, USA are pleased to announce the achievement of  a successful outcome  in their design  collaboration on a high pressure centrifugal compressor for a helicopter gas turbine engine.  Motor Sich designed the centrifugal compressor stage using Concepts NREC’s compressor design/analysis software and technical assistance. The compressor has undergone several rounds of development testing in Motor Sich’s test facilities for a number of different diffuser configurations.

The latest compressor design achieved target performance levels, including a design pressure ratio of 11.5 and  a maximum stage efficiency of  over 80%. As stated by Motor Sich,   the achieved compressor performance will allow significant  time savings in the certification cycle and flight testing of the engine.  Motor Sich and Concepts NREC are expanding collaboration to other turbomachinery design projects, including multistage axial and radial stages.


About Motor Sich 

JSC "Motor Sich" is a leading worldwide company, that for more than 95 years has performed all phases of the life cycle of products - from marketing studies, design and manufacture to maintenance service and repair. The company designs, develops and manufactures: aviation aircraft and helicopter engines of various designations, gas-turbines for gas transportation, gas lift, oil transportation units,  gas turbine power plants from 1 to 10 MW, , heat exchangers for aviation engines and gas turbine drives. Quality and reliability of the products, manufactured by the company, is confirmed by their successful operation  in over 120 countries. Motor Sich is headquartered at: JSC Motor Sich, 15, Motorostroiteley Avenue Zaporozhye 69068, Ukraine, Tel:+38 (061) 720-48-14; Fax:+38 (061) 720-50-05,  For more information, go to:

About Concepts NREC

Concepts NREC, Inc. is a leading worldwide organization providing turbomachinery design, engineering services, manufacturing and production of CAE/CAM software, with a staff of over 100 professionals at its facilities in Wilder, VT, and Woburn, MA.  For more than half a century, Concepts NREC has provided manufacturers, users, government agencies, and the engineering community with technology solutions, design tools, and services that have met needs of clients, helped achieve their goals, and aided in the development and manufacture of some of the world’s most advanced products.  Concepts NREC is headquartered at 217 Billings Farm Road, White River Junction, VT, 05001-9486 USA.  Telephone: 1-802-296-2321. Facsimile: 1-802-296-2325.  For more information, go to:

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Nitin Jain                                                                   

Director of Marketing                                         

Concepts NREC                                                      

(781) 937-4611                                                        

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