The Presidential Helicopter Replacement (VH-71) was a dual-piloted, multi-engine vertical take-off and landing aircraft that would bring the latest vertical lift and command and control communication technology to the primary helicopter platform employed by HMX-1. The VH-71 would be capable of operating day or night, in adverse weather worldwide, in climates including arctic, desert, mountainous, littoral, and tropical.Marine Helicopter Squadron One (HMX-1) is required to provide safe and timely transportation for the President and Vice President of the United States, heads of state and others as directed by the White House Military Office (WHMO). Currently two Type, Model, Series (TMS) aircraft are used by HMX-1 for the Presidential support mission, the VH-3D and the VH-60N. The VH-71 program provides the replacement helicopter for the VH-3D and VH-60N. The future Marine One would be one of the world"s most technologically advanced helicopters, designed to safely and reliably transport the president, vice president, heads of state and other official parties both at home and abroad with mobile oval office in the sky capabilities.