Kinetic Energy Interceptor
There were five first-stage rocket motor tests planned to be carried out by Alliant Techsystems (ATK) in Promontory, Utah.[2] The second test firing of a KEI first stage rocket motor was conducted on 14 June 2007.The static firing included a full duration burn and a demonstration of the thrust vector control nozzle.[3][4] The fourth test firing of the first-stage rocket motor was completed on November 13, 2008.[5] On 7 May 2009, Missile Defense Agency executive director David Altwegg announced that KEI would be canceled due to technical and financial reasons.