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Jul. 07, 1984 - KENNEDY SPACE CENTER. Fla.--Its antenna array ...
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The Payload Assist Module (PAM) is a modular upper stage designed and built by McDonnell Douglas (now Boeing), using Thiokol Star-series solid propellant rocket motors. The PAM was used with the Space Shuttle, Delta, and Titan launchers and carried satellites from low Earth orbit to a geostationary transfer orbit or an interplanetary course. The payload was spin stabilized by being mounted on a rotating plate. Originally developed for the Space Shuttle, different versions of the PAM were developed:

  • PAM-A (Atlas class), development terminated; originally to be used on both the Atlas and Space Shuttle
  • PAM-D (Delta class), uses a Star-48B rocket motor
  • PAM-DII (Delta class), uses a Star-63 rocket motor
  • PAM-S (Special) as a kick motor for the space probe Ulysses

The PAM-D module, used as the third stage of the Delta II rocket, is the only version in use today.


Video Payload Assist Module



2001 re-entry incident

On January 12, 2001, a PAM-D module re-entered the atmosphere after a "catastrophic orbital decay". The PAM-D stage, which had been used to launch the GPS satellite 2A-11 in 1993, crashed in the sparsely populated Saudi Arabian desert, where it was positively identified.


Maps Payload Assist Module



Gallery


Payload Assist Module (PAM-D), Space Shuttle (flown)
src: airandspace.si.edu


References


Payload Assist Module - Wikipedia
src: upload.wikimedia.org


External links

  • Payload Assist Module at the NASA Shuttle Reference Manual
  • Payload Assist Module at GlobalSecurity.org

Source of the article : Wikipedia

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