Documents / Document
This Project Blue Book file on the Socorro, New Mexico sighting, held by the Internet Archive, collects Air Force records and 1964 press clippings. It covers policeman Lonnie Zamora's April 24, 1964 report of an egg-shaped object with four legs, the scorched brush and ground depressions, and Dr. J. Allen Hynek's investigation. An Air Force summary says soil and brush analysis found no radiation or propellant and the case stayed open. Later New Mexico reports were judged known objects or hoaxes.
“Burbank”5 pages
Read from the scan by GLM-OCR; expect the odd misread word.
## SURVEYOR LANDING GEAR
Project Surveyor is a scientific task with the end requirement of successfully accomplishing a landing on the moon. The lunar vehicle lands on three legs. A shock absorber is incorporated in each leg to dissipate some of the touchdown energy and to store the balance. NWL is responsible for the design, production, and testing of these shock absorbers, Model 1859.
The design parameters are very severe. Temperatures range from $ + 2 7 5^{\circ} \mathrm{F} $ to $ - 3 0 0^{\circ} \mathrm{F} $ , pressures inside the unit go up to 15,000 psi, and pressures outside the unit drop to $ 1 0^{-1 4} $ torr. The required damping profile is both a function of unit velocity and unit stroke position.
The unit contains a gas charge at 1500 psi and will retain such a charge for 12 months. External moving parts are encapsulated by flexible metal bellows. The unit uses a special grade of titanium (13 Cr 11V 3 Al) heat treated to 185,000 psi minimum. A very detailed and comprehensive reliability program controls this project.
By the nature of its' end usage, the production of the shock absorber will be small. However, the engineering, product know-how, and special experience requirement are very large. This unit typifies NWL Company's capacity for small production runs on sophisticated hardware. Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 168 pages are in the text index: search them above, or from the library's search.