Prototype 1 of the Non-Line of Sight Cannon was unveiled June 11 on the National Mall, Washington, D.C. A total of eight such prototypes will eventually be delivered to Yuma Proving Grounds, Ariz., by 2010. The NLOS-C, part of Future Combat Systems, is part of the Army's modernization program. The NLOS-C was one of several pieces of FCS hardware on display at the Mall. Also on display were the Class I and Class IV unmanned aerial vehicles, the Multifunctional Utility/Logistics and Equipment vehicle, the Small Unmanned Ground Vehicle and several Tactical Unattended Ground Sensors. Visitors to the FCS open house at the Mall included Senator Jim Inhofe (Okla.), Secretary of the Army Pete Geren, and Chief of Staff of the Army Gen. George W. Casey Jr.