NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login

Press Enter or click the Search button to begin your search.

Back to Results
Efficiency study comparing two helicopter planetary reduction stagesA study was conducted to compare the efficiency of two helicopter transmission planetary reduction stages. Experimental measurements and analytical predictions were made. The analysis predicted and experiments verified that one planetary stage was a more efficient design due to the type of planet bearing used in the stage. The effects of torque, speed, lubricant type, and lubricant temperature on planetary efficiency are discussed.
Document ID
19900017018
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Krantz, Timothy L. (Army Aviation Systems Command Cleveland, OH, United States)
Handschuh, Robert F. (Army Aviation Systems Command Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1990
Subject Category
Mechanical Engineering
Report/Patent Number
E-5405
AD-A224966
NASA-TM-103106
AVSCOM-TM-90-C-005
NAS 1.15:103106
Report Number: E-5405
Report Number: AD-A224966
Report Number: NASA-TM-103106
Report Number: AVSCOM-TM-90-C-005
Report Number: NAS 1.15:103106
Meeting Information
Meeting: Joint Propulsion Conference
Location: Orlando, FL
Country: United States
Start Date: July 16, 1990
End Date: July 18, 1990
Sponsors: AIAA, SAE, ASME, ASEE
Accession Number
90N26334
Funding Number(s)
PROJECT: DA PROJ. 1L1-62211-A-47-A
PROJECT: RTOP 505-63-51
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available