Used during three Apollo 15 lunar EVAs and a deep-space EVA
Exposed to the lunar environment for more than 18 hours and deep space environment during mankind's first deep-space EVA performed by Al Worden.
The OPS supplies the EMU with oxygen purge flow and pressure control for certain failure modes of the PLSS or PGA during EVA.
In the event of a PLSS failure, the OPS flow is regulated to 3.7 +/- 0.3 psid for 30 minutes to provide breathing oxygen to the crewman, prevent excessive carbon dioxide buildup, and provide limited cooling.
In the lunar EVA configuration, the OPS is mounted on top of the PLSS. During contingency EV transfer from the lunar module, however, the OPS is attached by straps to the lower front torso of the PGA.
Originally from the collection of Apollo 15 commander Dave Scott - own a piece of history:
Worn on the lunar surface by Scott as part of his PLSS and carried on the first lunar rover for a total of more than 18 hours then used again by Alfred Worden during his first deep-space EVA!
The Apollo 15 crew used the first Lunar Roving Vehicle (LRV).
The beta cloth fragment comes from the beta cloth protection of the OPS and is mounted onto an 8x10 presentation.
Aside from having a strong certification the existence of lunar dust in the beta cloth is one of the best proofs that the artifact actually went to the moon. We have closely examined the beta cloth and found evidence of lunar dust throughout the entire beta cloth segment. Individual fragments contain traces/grains which can be seen through a 60x(or more) microscope with a good eye although the density is not comparable with our Apollo 16 netting presentations!
Disclaimer: Although the original piece comes from the collection of Apollo 15 mission commander David Scott, Mr. Scott is not involved in this edition nor does endorse it.
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