That would be the X-302. This little baby, in addition to being Earth's "first" working manned deep space craft, is also supposed to be hyperspace capable. However due to instabilities in the Na'Quadria(sp?) fuel source, the little bugger just can make a "hyperjump" in and out of hyperspace, before the reactor scrams.
The design is based loosely on the X-301 which was a retrofitted Death Glider, which malfunctioned nearly killing Col. Jack O'neal and the Jafa, Teal'c.
The design program also includes the X-303 which is a fully functional warship approximately half the size of a standard Asgard vessel.
It should be noted that the X-303, is hyperspace capable and capable of engaging a Goa'uld mothership and emerge victorious.