Investigation of Main Rotor Spindle Assembly Retaining Rods from an Army Utility Helicopter

2001-01-2668

09/11/2001

Event
Advances In Aviation Safety Conference & Exposition
Authors Abstract
Content
The purpose of this investigation was to determine the root cause of the differences noted in the fatigue test data of main rotor spindle assembly retaining rods fabricated from three different vendors, as part of a “second source” evaluation process. The Army Research laboratory (ARL) performed dimensional verification, and measured the respective surface roughness of the rods in an effort to identify any discrepancies. Next, mechanical testing was performed, followed by metallography, and chemical analysis. ARL subsequently mechanically tested specimens subjected to laboratory heat treatments at the required aging temperature.
Meta TagsDetails
DOI
https://doi.org/10.4271/2001-01-2668
Pages
14
Citation
Pepi, M., Grendahl, S., and Champagne, V., "Investigation of Main Rotor Spindle Assembly Retaining Rods from an Army Utility Helicopter," SAE Technical Paper 2001-01-2668, 2001, https://doi.org/10.4271/2001-01-2668.
Additional Details
Publisher
Published
Sep 11, 2001
Product Code
2001-01-2668
Content Type
Technical Paper
Language
English