Eventually, after several years of strenuous research and development in alien technologies extracted from off-world missions, billions of dollars in spending for research and work, and both successful and failed prototypes, the Tau'ri were ultimately able to construct their first glider vessel based primarily on Goa'uld technology scavenged from two captured Death Gliders. This was the X-301, a Tau'ri/Goa'uld hybrid. In the end however, it was a failure due to several of the alien components.