GRUMMAN APOLLO LUNAR MODULE ASCENT STAGE PROPULSION COMPONENT.
ASCENT STAGE OXYDIZER TANK SUPPORT MOUNT.
Made from aluminum alloy, with titanium fittings and fasteners. 1 foot 9 inches by 2 feet 9 inches. Part numbers: "LDW280M10462-9" and "LDW280M10463-9 Ser. No A07-1". Stamped March 2, 1967.
Provenance: Property of an institution.
An integral piece of the ascent stage, which supported and stabilized the oxydizer tank. This tank was a key component in the propulsion of the ascent stage. The oxydizer used was Nitrogen Tetroxide (N2O4). It was stored in a tank separate from the fuel, which was a blend of hydrazine (N2H4) and unsymmetrical dimethylhydrazine (UDMH). The oxydizer was injected into the fuel in a ratio of 1.6 to 1 by weight, giving the ascent engine a thrust of 3,500 pounds - enough to launch the ascent stage from the lunar surface into its selected orbit.