Marine One ( HMX-1 ) started using the VH-3 helicopters after 1960 .
The VH-3D replaced some VH-3As in 1978 , and the remaining VH-3As were replaced by the VH-60N beginning in 1989.The current VH-3 helicopters used by HMX-1 are aging and in 2002 the VXX competition was started to find a replacement .
Marine One