The first public announcement was in October 2014. They estimated they could build a test reactor within one year (by October 2015) and the prototype within 5

The first public announcement was in October 2014. They estimated they could build a test reactor within one year (by October 2015) and the prototype within 5 years. http://www.lockheedmartin.com/us/products/compact-fusion.html http://www.lockheedmartin.com/us/products/compact-fusion.htm...