What Caused the SL-1 Accident?: Plenty of Blame to Share

(Note from the editor: The following story is conjecture supported by interviews of first hand sources and a careful review of the written history. It is tempered with an understanding of reactor operations and human nature gained during more than six years in supervisory positions in military nuclear power plants. The mystery, however, is more…

January 1961: SL-1 Explosion Aftermath

At 9:01 pm on January 3, 1961, the first indication of trouble at SL-1 was received at Atomic Energy Commission Fire Stations. The alarm, which was triggered by one of several measured parameters at the plant, was immediately broadcast over all National Reactor Testing Station radio networks. By 9:10 pm, fire trucks and security personnel…

Atomic Gas Turbines: Applying Related Inventions

Many of the greatest innovations – if carefully investigated – can be seen to be the result of of an inventor recognizing other inventions had made it possible to achieve a long awaited dream. For example, the story of the Wright Brothers’ first flight is incomplete without the story of the internal combustion engine. The…

Prefab Reactors For Off-Grid Users

The Army Nuclear Power Program was established as part of the Atomic Energy Commission in 1954. It was charged with the responsibility of developing reactors suitable for providing electrical power to remote bases and outposts. Some of the people associated with the Army Nuclear Power Program saw essentially unlimited potential for small, transportable reactors. Most…

Army Nuclear Power Plants

Designation Description of Reactors SM-1 This stationary military reactor was the Army’s prototype and training facility. It began operation in April 1957 at Fort Belvoir, VA, several months before the Shippingport reactor. SM-1 has the distinction of having been the first nuclear power plant to be hooked to an electrical grid. 2,000 kw. SM-1A Built…

Letter from the Editor: Portable Nuclear Reactors

The United States Army ran an innovative nuclear power program for more than 20 years. The men involved operated a series of small, nuclear heated generating plants in some of the world’s least hospitable environments. The story of what those diligent heros did has been all but lost. Though the Army was the lead service…