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TD's ATOMIC CAREER

Accouterments of War and Defense

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Nuclear Engine for Rocket Vehicle Application
Nuclear Rocket Development Station
Jackass Flats, Nevada

By T.D. Barnes

On the atomic side, I participated in the NERVA project to develop a nuclear engine for use in manned flight to Mars.

NASA's Nuclear Engine for Rocket Vehicle Application (NERVA) program at the Nuclear Rocket Development Station (NRDS), Jackass Flats, Nevada was contractedmany contractors including Los Alamos Scientific Laboratory (LASL), Aerojet Nuclear Systems Corporation (ANSC), Westinghouse Astro-Nuclear Laboratory (WANL), Edgerton, Germashausen & Grier (EG&G), to develop a nuclear Engine for future manned flight to Mars and beyond. This 1950 - 1960's Kiwi nuclear reactor Program code-named" Project Rover," consisted of test cells, A, C, and ETS-1 (Engine Test Stand); R-MAD and E-MAD (Reactor and Engine Maintenance Assembly and Disassembly facilities; a Control Point (containing the control rooms for Test Cells A and C); Technical Operations complex; an Administrative area; and a Radioactive material storage area. The two test cells were connected to the R-MAD facility by a railroad system that transported the reactors from the R-MAD to test cells A and C and then, after testing, back to R-MAD for post test disassembly and examination.

While waiting for my Top Secret "Oxcart" security clearance for Area 51, I worked in Area 25, the largest section of NTS mostly composed of a shallow alluvial basin called Jackass Flats. I entered this portion of the Atomic Testing Grounds through a guard shack manned by armed Wackenhut guards a few miles east of Lathrop Wells, Nevada. The environment consisted of a flat basin between barren Yucca Mountain and the mesas of the Atomic Proving Grounds. The valley's vegetation was mostly Joshua trees, sagebrush and creosote bush and was inhabited by wild burros, rattlesnakes, jack rabbits, golden eagles and other desert critters, including at least one giant badger.

The valley lacked much evidence of human activities other than the security check stations. Far in the distance I saw only minute outlines of the next closest building shimmering in the desert heat. I passed a support area and proceeded until I encountered a tee in the road, the road to my right heading towards a check station and eventual exit on Highway 95. I turned left where I passed through another Control Point in a maze of roads heading in three directions. The road to the right provided access to the R-Mad complex where it turned left to head towards test cell A and then branching to test cell C where it dead ended. Just prior to this test cell, the road looped back to the control point where it started. Heading left of the Control Point took me left to another branch in the road, one taking me right to the R-MAD and the other taking me to another branch where I turned right to the Engine Test Stand 1,where I was assigned to work.

My first trip up, the Engine Test Stand One facility proved to be difficult to find. Probably due to security concerns, no map of the area was provided. I finally located a group of union workers, standing around a remote trailer house, who directed me to the facility. The road dead ended in a parking lot near the portal of an underground tunnel heading into the shallow hill where most of the test stand extended upwards. A secretary arriving in the parking lot guided me into the tunnel where we walked probably a quarter mile. The entrance to the tunnel could have been the entrance to any mine in the area from its appearance. Huge air pipes curved down from the hill and entered the tunnel where they ran along the top right side of the tunnel. Beneath the air duct pipes lay several layers of cable trays full of cables likewise extending into the tunnel.

The interior of the tunnel was concrete, brightly lit and very clean. Deep in the tunnel we encountered closed doors opening into brightly lit control rooms and data processing equipment. Closer to the actual test stand, where the tunnel ended, we entered a large subterranean room stacked floor to ceiling with rows rows of electronic amplifiers, signal conditioners and multiplexing equipment.. Almost each row of electronics contained an engineer or technician with a cart full of electronic test equipment calibrating and repairing the signal processing equipment for transmittal back down the tunnel to the control room and data recording room.

The operation appeared low-key, but steady as everyone prepared for an upcoming nuclear engine test run. Almost weekly, a test run occurred with simulators feeding expected data with which the personnel could evaluate and adjust their electronics.

Due to the temporary nature of my assignment to the NERVA project, I mostly accompanied Pan American managers as they provided support functions for the other contractors. While I never actually had a job to do or any responsibilities, my go-as-you-wish privileges provided me a wider experience and broader knowledge of the program than many employees ever get.

ETS-1 was a very impressive Cape Kennedy-type structure rising approximately 120 feet vertical where we ran the engines were tested. Huge spherical thermos-like dewars containing 260,000 gallons of liquid hydrogen added to the space launch appearance.The liquid hydrogen was used as both a reactor core coolant (on its way through the core) and, after being “super heated and expanded, as a propellant). Two large, half million gallon water storage tanks were located several miles away on the mountainside and were gravity fed to ETS-1 via two six foot diameter pipes to provide a cooling function during an actual engine run.

During a test, the nuclear rocket engine flame was invisible, however one could see a slight image of the exhaust due to incandescent impurities and the heat aberrations being produced in the air. During a test the concrete lined canyon into which the engine exhaust was directed was like an inferno as the hot hydrogen spontaneously ignited upon contact with air. TheThe vaporization and subsequent expansion of the liquid hydrogen as it traversed its way through the core and out the nozzle provided “thrust”. The hot exhaust was cooled by the water injected into the exhaust plume as it made its way out the nozzle and resembled something “other worldly” as the the steam condensed and formed a “river” draining down the concrete lined exhaust “canyon.”.

We used a unique remotely controlled railroad car to carry the engine up to the ETS-1 and lift it into place on the test stand using hydraulic "hands". After a test the railroad car carried the hot engine back to E-MAD the engine and reactor were remotely disassembled for inspection and examination. We called the railroad the Jackass & Western Railroad.

The MAD buildings were constructed with thick concrete walls to protect us as we worked on the engine contained in immensely "hot cells". We used mechanical arms controlled through walls several feet thick. We could view the work through oil filled lead glass windows to protect us from the radiation being emitted by the rocket engine and creator components..

The NERVA engine we developed will someday be used for extended space travel. It will be perfect for large-scale ferrying of supplies, making it indispensable for America's space transportation system.

Test cells A & C were used for reactor tests prior to my time at NRDS.


NERVA Test NERVA TestNERVA TestNERVA TestNERVA TestNERVA TestNERVA TestNERVA Test
Underground entrance to offices, electronics, and control room of Engine Test Stand 1
"Photos courtesy of National Nuclear Security Administration / Nevada Site Office"
ETS1 Tunnelt
ETS1 Tunnelt
ETS1 Tunnelt
ETS1 Tunnelt


Links to More Information on this project

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ATOMIC BOMB PROJECTS

Between projects, I participated in several atomic bomb tests at the neighboring Nevada Test Site while awaiting security clearance upgrade required for transfer to the Special Projects "black world" at Groom Lake. The atomic tests in which I participated were Marvel, Cobbler,, Gasbuggy, Cabriolet, and Torch underground detonations.



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