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A Study of the Potential Benefits Associated with the Development of a Dedicated Helicopter Transmission Lubricant
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English
Abstract
A common oil is now used in both the engines and transmissions of virtually all U.S. military helicopters. While this provides significant logistic advantages, these advantages are attained only by compromising the optimization of the oil for either system.
This paper summarizes the results of two studies undertaken to determine what benefits would accrue through the development of a special oil tailored specifically to meet the unique requirements of high-speed, heavily loaded helicopter transmission systems. These studies, conducted independently by two major helicopter manufacturers under the direction of the Naval Air Propulsion Center, addressed specific problem areas as related to typical production aircraft in order to reach well-documented conclusions. In addition, the effect of the availability of such a special gearbox lubricant on the development of other advanced-technology components was evaluated and documented.
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Authors
Citation
Drago, R., Mangione, P., and Wendrzycki, R., "A Study of the Potential Benefits Associated with the Development of a Dedicated Helicopter Transmission Lubricant," SAE Technical Paper 851832, 1985, https://doi.org/10.4271/851832.Also In
Aviation Gas Turbine Lubricants--Military and Civil Aspects--Aviation Fuel and Lubricants--Performance Testing
Number: SP-0633; Published: 1985-10-01
Number: SP-0633; Published: 1985-10-01
References
- Keller, C. H. Jr. ADVANCED TECHNOLOGY HELICOPTER TRANSMISSION LUBRICANT Contract No. N00140-82-C-3723, Final Report SER510113 Sikorsky Aircraft Division, United Technologies Corporation Bridgeport, CT September 1982
- Drago, R. J. OPTIMUM LUBRICATING OIL STUDY Contract No. N00140-82-C-3722, Final Report D210-1965-1 Boeing Vertol Company Philadelphia, PA September 1982
- Bamberger, E. N. et al LIFE ADJUSTMENT FACTORS FOR BALL AND ROLLER BEARINGS American Society of Mechanical Engineers Design Guide 1971
- Mitchell, A. M. Coy, J. J. LUBRICANT EFFECTS ON EFFICIENCY OF A HELICOPTER TRANSMISSION Propulsion Specialists Meeting of the American Helicopter Society Williamsburg, VA November 1982