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Apollo CM Accelerometer

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:400.00 - 600.00 USD
Apollo CM Accelerometer

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Auction Date:2013 Nov 21 @ 18:00 (UTC-05:00 : EST/CDT)
Location:5 Rt 101A Suite 5, Amherst, New Hampshire, 03031, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
Apollo Command Module accelerometer consisting of a module and pendulum assembly, with the module bearing an affixed NASA label identifying it as, “Apollo Matched Pendulum and Module Assembly, Part No. 2001730-2,” and the pendulum identified as a “Pulsed Integrating Pendulum, Part No. 108000-2,” manufactured for NASA by the Sperry Gyroscope Company. These were installed within the Apollo and Lunar Module Inertial Measurement Unit (IMU) in groups of three, where they served as accelerometers by measuring the displacement in velocity on three axes. The information was then reported to the navigation computer to aid in its calculation of spacecraft speed and position. Accompanied by two photos of the device from Sperry.