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A Design Study in Steel - ME Elecmetal Crawler Track Shoe

Analysis and Conclusions

NASA engineers made four conclusions following the 2004 performance testing and failure analysis.

1.   The available non-destructive examination methods used to inspect the CT shoes could not conclusively identify serviceable shoes.

2.   Refurbishing the defective shoes was not cost effective.

3.   The available spare CT shoes in inventory would be depleted with two additional CT moves. 

4.  The CT shoes in service were likely at or near their life limit.  

Front View of Crawler Unit (NASA Photo)

NASA decided that new CT shoes were needed for the transporters.



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Copyright 2006  by the Steel Founders' Society of America   All rights reserved. 
Address comments to: blairr@sfsa.org
Last Modified:July, 2006 by STG

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In cooperation with ME Elecmetal