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Lot 42

GRUMMAN APOLLO LUNAR MODULE DESCENT STAGE
SUPER CRITICAL HELIUM TANK SUPPORT TRUSS

20 July 2016, 13:00 EDT
New York

Sold for US$1,375 inc. premium

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GRUMMAN APOLLO LUNAR MODULE DESCENT STAGE

SUPER CRITICAL HELIUM TANK SUPPORT TRUSS
Aluminum alloy truss with titanium fittings and fasteners, tapered ends terminating in riveted hinge assemblies. 46 x 3 inches. Labelled "LDW280-17283 11" in red lettering midway down the shaft. The rightmost section has several wires terminating in two metallic plugs wrapped around the circumference and held in place with adhesive tape.
PROVENANCE: Property of an institution.

The Lunar Modules of the Apollo Program required helium as part of a lightweight cryogenic pressurization system to engage their propulsion systems for the Descent Stage to the Lunar surface, alongside a propulsion system that used hypergolic propellants and a gimballed pressure-fed ablative cooled engine that was capable of being throttled.

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