Cost Benefit Analysis of a 9-Centistoke Lubricant for Helicopter Transmissions

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Abstract:

A study was conducted to estimate the cost benefit of using a 9-cSt lubricant in helicopter transmissions in place of the DOD-L-85374 oil currently being used. The study was based on an analysis of direct maintenance costs for the main transmission of the U.S. Navy SH-60B helicopter and an extrapolation of SH-60B cost benefits to other helicopters in the U.S. Navy and Marine Corps inventories. For the study, an analysis was performed to determine the effect of 9-cSt lubricating oil on the life of main transmission components. Field data were also analyzed to quantify the unscheduled removal rate of main transmission modules and to establish the causes for removals within specific categories. Life factor ratios were applied to these data to project the reduction in parts usage along with cost savings resulting from use of a 9-cSt oil. Overall, the SH-60B helicopter would achieve an estimated annual savings of 709 thousand in gearbox unscheduled maintenance costs, with the savings for all U.S. Navy and Marine Corps helicopters reaching an estimated 7.5 million annually.

Author(s):
Cook, Thomas A. ; Consolini, Michelle A.
Author Organization(s):
UNITED TECHNOLOGIES CORP STRATFORD CT SIKORSKY AIRCRAFT DIV
Descriptive Note:
Final contractor rept.
Pagination:
0027

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NASA-CR-204144, NASA-E-10892
Contract/Grant Number(s):
NAS2-14118
Project Number(s):
1L162211A47A
Monitor Series:
CR-204144, E-10892, CR-340, ARL**
 Subject Terms
Joint Capability Areas:
JCA_4.3_Maintain; JCA_5_Command and Control; JCA_6_Net Centric; JCA_5.3_Planning; JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_6.1_Information Transport; JCA_4.3.1_Depot Maintenance; JCA_6.4.1_Secure Information Exchange; JCA_4.2_Supply; JCA_4.2.3_Manage Global Supplier Networks; JCA_6.4_Information Assurance; JCA_6.3.3_Spectrum Management; JCA_1_Force Support; JCA_6.3_Net Management; JCA_8_Building Partnerships
Modernization Areas:
Fully Networked C3
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*LUBRICATING OILS, *COST BENEFIT ANALYSIS, MAINTENANCE, HELICOPTERS, INVENTORY, BEARINGS, MARINE CORPS AIRCRAFT, TRANSMISSION GEARS, TRANSMISSIONS(MECHANICAL)
Field(s)/Group(s):
Lubricants and Hydraulic Fluids, Economics and Cost Analysis
Keyword(s):
PE62211A
Report Date:
1997 Aug 01
Creation Date:
1997 Oct 22