USA Engr Reactor Group

• Origins in the Atomic Age: The USA Engineer Reactor Group was established during the early Cold War to support the US Army's development and operation of nuclear reactors, particularly for portable and remote applications. • Support for Army Nuclear Power Program: The group was instrumental in the Army Nuclear Power Program (ANPP), which aimed to provide nuclear-generated electricity and heat to remote military bases worldwide. • SM-1 Reactor at Fort Belvoir: The unit played a key role in operating the SM-1 reactor at Fort Belvoir, Virginia, the first nuclear power plant to supply electricity to the US grid. • Training Future Nuclear Engineers: The group trained hundreds of Army personnel and international students in reactor operation, maintenance, and nuclear safety. • First Overseas Army Reactor: Members supported the construction and operation of the PM-2A reactor at Camp Century, Greenland, the first portable nuclear plant deployed outside the continental US. • Contributions to Antarctic Exploration: The group assisted in the deployment of the PM-3A reactor at McMurdo Station, Antarctica, providing critical power in extreme environments. • Advancing Nuclear Safety: The USA Engineer Reactor Group pioneered many safety protocols and emergency procedures now standard in military and civilian nuclear operations. • Involvement in Decommissioning: The unit managed the safe shutdown, decontamination, and dismantling of several early Army reactors, contributing to best practices in nuclear decommissioning. • Legacy in Modern Nuclear Programs: Alumni from the group went on to leadership roles in the US Navy’s nuclear program, the Nuclear Regulatory Commission, and civilian nuclear power industries. • Influence on Reactor Design: Lessons learned from the group’s reactors influenced the design of later small modular reactors and portable nuclear systems for both military and civilian use.