United States United States · Fort Greely · 63.973, -145.718

SM-1A

SM-1A, a research reactor (other) in Fort Greely, United States, with 2 MW of thermal power, operated by United States Army. Decommissioned, first critical in 1962.

It was one of the 340 research reactors the United States has had; 48 remain in operation today. It went critical 20 years after the first research reactor in the United States, CP-1, Chicago Pile 1 (1942).

Country
United States
City
Fort Greely
Type
Other
Thermal power
2 MW
Operator
United States Army
Status
Decommissioned
First criticality
1962
Purpose
Electricity and heat supply

Data: Wikipedia · updated on Sep 3, 2026

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