Henry Archer was the primary developer of the first warp engine capable of reaching warp five, and was one of the principal designers of Enterprise NX-01. He was the father of Jonathan Archer and a good friend of Emory Erickson, the inventor of the transporter on Earth. (ENT: "Broken Bow", "Daedalus") Henry worked closely with Dr. Zefram Cochrane to develop the warp five engine at the Warp Five Complex in Bozeman, Montana as part of the NX Program. (ENT: "Broken Bow")