Apollo Artifacts

Apollo Saturn S-II (Second Stage) liquid hydrogen vent and relief valve

This Apollo Saturn S-II (Second Stage) Liquid Hydrogen (LH2) dual function tank Vent and Relief Valve was manufactured by Wallace O. Leonard Inc. under subcontract to North American Aviation (prime for the S-II). The valve was produced in 1966.

The LH2 Vent-Relief valve, used as part of the single Rocketdyne J-2 engine system which powered the stage, was situated at the top/forward portion of the S-II LH2 tank. It was commanded via the Pneumatic Control System (helium gas driven). The Vent-Relief valve opened during ground fill/drain of the propellants and closed prior to pressurization. Additionally, the valve enabled venting while in flight if either of the tanks experienced overpressurization. The Vent-Relief valve output was applied to a nonpropulsive vent system (expelled gas was routed to two ducts positioned at 180 degrees on either side of the stage resulting in total thrust cancellation).

The valve is 21" tall and 12.5" in diameter at the widest point. It weighs 45 pounds.

Thanks to Scott Schneeweis for the technical description of this artifact.

Rope memory module for the Model 100 Apollo Guidance and Navigation Computer

This is a rare rope memory module made for the Block I (before the Apollo 1 fire) Model 100 Apollo Guidance and Navigation Computer.  The computers that formed the basis of the Apollo Guidance and Navigation System (AGNS) were at the cutting edge of technology in the 1960s. They were the first to use the integrated circuit technology that subsequently gave us desktop computers and so many of the consumer electronic products that fill our lives today.

Each computer had two types of memory, erasable and fixed. The fixed memory contained the programs, constants and landmark coordinates using 36,864 terms or words, each of 15 bits length. That came to a grand total of 74 kilobytes of memory.

The fixed memory was made from coincident-current ferrite cores woven into a rope with copper wires and sealed in plastic. Software components were encoded into a core according to the "pattern" of its weave. Each core functioned as a small transformer, with up to 64 wires connected to each core. If a wire passed through a particular core, a "1" would be read. If a particular wire bypassed the core, a "0" would be read. If you wanted to change the software contained in fixed memory, you had to rewire the sealed core to change the bits. The erasable memory was made from similar materials but with a different design. Each core in the erasable memory could be changed using magnets. Turning clockwise to indicate a "1" or anti-clockwise indicating a "0".

The module is labeled: C P ASSY 1031103 NO.  1003733-011, MFG BY RAYTHEON CO., SERIAL NO. RAY 4

Thanks to Jim Loocke for the technical description of this artifact.

Brass Flashlight Designed for NASA Apollo Missions

This flashlight was made by ACR for NASA. ACR contracted out the flashlights to Fulton Industries in Wauseon Ohio. It is stamped ACR FA- 5 Serial No. 3016 Date of Mfg. 8-72. This flashlight has no known history of being on an Apollo mission. It still works brilliantly.

Apollo 9 heat shield plug Lucite display

This is a circular chunk of the heat shield from Apollo 9. Heat shields were manufactured by AVCO Corporation, with integration by NAA (North American Aviation), and are comprised of an extremely lightweight fiberglass honeycomb which is hand filled by air gun with the ablative resin material. The ablative system dissipates heat as the material melts and chars during re-entry, mitigating the 20,000 degree heat experienced by the CSM as it transits through the extreme thermo-dynamic phase of the re-entry corridor.

LRL Moon Rock Secondary Sample Containers

The secondary sample storage container, used in the Lunar Receiving Laboratory allowed for easy division of samples within vacuum cabinets and had high, large threads to hold a vacuum seal in case of emergency.

Contractor press kits relating to the Apollo 11 mission

 

I've worked in marketing and PR my entire career and am fascinated by the press kits put out by NASA and by the contractors. I was fortunate to have acquired a set of complete press kits used by a journalist while covering the Apollo 11 mission. Included are press kits from IBM (Computer systems), North American Rockwell (Command Module), Grumman (Lunar Module), TRW (Engines), and several other kits not pictured here.

Lunar sample 1" scale cube

This is an exact replica 1" scale cube to those that are used to show size and orientation of lunar samples at the Lunar Receiving Lab. These scale cubes are made of machined, anodized aluminum, with engraved markings filled with baked enamel.

Kennedy Space Center access badges for the Apollo 16 mission

A collection of twelve badges that were previously owned by a 34-year KSC security guard. These badges were used as prototypes and for identification purposes. Several are astronaut badges.