The Sacajawea was a Federation Type 6 shuttlecraft that was in service with Starfleet during the late-24th century. The shuttle was attached to the USS Voyager and was given the designation of "Shuttle 05". (VOY: "Coda")
Following its return to Voyager, The Doctor later took refuge in this shuttle after he was chased into the shuttlebay by the macroviruses that had overrun Voyager. Soon after, when Voyager was under attack by the Tak Tak starship that responded to their distress call, The Doctor was able to use the shuttle's sensors to determine who the attackers were, after he patched the data down to Janeway, who was in the environmental control room. (VOY: "Macrocosm")
Later that year, Chakotay and Janeway took the shuttle and were caught in a magnetic storm and crashed. Janeway later experienced several scenarios aboard what she believed to be this shuttle, however it was an illusion created by a member of an unidentified alien species. (VOY: "Coda")
En route the shuttle experienced a turbulent descent, and while travelling at velocity of Mach 2.1, at an approximate altitude of fifteen kilometers the shuttle entered the upper troposphere, where it entered a layer of electrodynamic turbulence. With the shuttle's thrushers not responding, the shuttle began to lose main power, which forced Tuvok to attempt to land the shuttle manually, before it crashed on the planet's surface.
The crash resulted with all of the shuttle's primary systems going offline (including the com), and caused the destruction of its warp drive and impulse engines. While Tuvok attempted to repair the com, he requested a visual damage report from Neelix on the condition of the signal relay's on the shuttle's toroidal antennae.
As he stepped out of the shuttle, Tuvok spied an orbital tether nearby, which would allow them a means of escape from the planet's surface. Though informed by Dr. Vatm that the induction coils for mag-lev carriage rendered it disabled, Neelix was convinced that they could be replaced with the attitude control thrusters from the shuttle, using a bit of "creative mechanics" to complete the repairs. (VOY: "Rise")
The shuttle was identified by name in "Coda". It's name was also visible on the hull in "Macrocosm".
In "Rise", the partially visible name ("Sac-") was seen on the hull of the full scale crashed Type 6 shuttle mockup, also previously used in "Coda", however, it had been clearly shown as a Type 8 shuttlecraft during its atmospheric descent (complete with a clearly visible, but intelligible name on the hull).
As with all Type 6 shuttles seen on Voyager, the MSD of the Sacajawea, as seen in "Coda" and "Rise", showed the display for a Type 8 shuttlecraft.