REPORT DOCUMENTATION PAGE  Form Approved   OMB No. 0704-0188   The public reporting burden for this collection of information is  estimated to average 1 hour per response, including the time for reviewing instructions, searching  existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. S end comments regarding this burden  estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department o f Defense, Washington Headquarters  Services, Directorate for Information Oper ations and Reports (0704-0188), 1215 Jeffer son Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should  be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of informat ion if it does not  display a currently valid OMB control number.   PLEASE DO NOT RETURN YOUR FORM TO THE ABO VE ADDRESS. 1. REPORT DATE (DD-MM-YYYY)      May 2012 2. REPORT TYPE      Conference Publication  3. DATES COVERED (From - To)       May 16-18, 2012   4. TITLE AND SUBTITLE  41st Aerospace Mech anisms Symposium  5a. CONTRACT NUMBER   NAS7-03001  5b. GRANT NUMBER         5c. PROGRAM ELEMENT NUMBER         6. AUTHOR(S)  Edward A. Boesiger    5d. PROJECT NUMBER         5e. TASK NUMBER         5f. WORK UNIT NUMBER         7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)  Jet Propulsion Laboratory  California Institute of Technology  4800 Oak Grove Drive Pasadena, CA 91009 8. PERFORMING ORGANIZATION      REPORT NUMBER             9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)   National Aeronautics and Space Administration  Washington, DC 20546-0001  10. SPONSORING/MONITOR'S  ACRONYM(S)         11. SPONSORING/MONITORING        REPORT NUMBER  NASA/CP-2012-217653   12. DISTRIBUTION/AVAILABILITY STATEMENT   Unclassified—Unlimited  Subject Category         Availability:  NASA CASI (301) 621-0390              Distribution:  Nonstandard  13. SUPPLEMENTARY NOTES         14. ABSTRACT  The proceedings of the 41st Aerospace Mechanisms Symposium are reported.  JPL hosted the conference, which  was held in Pasadena Hilton, Pasadena, California on May 16-18, 2012.   Lockheed Martin Space Systems  cosponsored the symposium.   Technology areas covered include gimbals and positioning mechanisms,  components such as hinges and motors, CubeSats, tribology, and Mars Science Laboratory mechanisms.  15. SUBJECT TERMS  Spacecraft components; gimbals and positioning mechanism s, components such as hinges and motors, CubeSats,  tribology, and Mars Science Laboratory mechanisms.  16. SECURITY CLASSIFICATION OF:  17. LIMITATION        OF ABSTRACT    UU 18. NUMBER OF       PAGES  520  19a. NAME OF RESPONSIBLE PERSON  STI  Help Desk at help@sti.nasa.gov         a. REPORT      U b. ABSTRACT      U c. THIS PAGE      U 19b. TELEPHONE NUMBER (Include area code)  (301) 621-0390  JPL   2659   R   10 / 03   W                                                                                                                                                                    Standard Form 298    (Rev. 8-98)                                                                                                                                                                                                                                                      Prescribed by ANSI St d. Z39-18