Cochrane was a Class 2 shuttle used aboard the USS Voyager during it's journey through the Delta Quadrant during the late 24th century until it's destruction in 2374. It was numbered "04" in order to register it as Voyager's fourth shuttlecraft, and was the shuttle used for Voyager's transwarp tests.
History
In 2372, the Cochrane became the first Starfleet vessel to break the Transwarp threshold after it was outfitted with a transwarp drive by the crew of the USS Voyager. During the experiment, the shuttle exceeded it's original limitation of warp 4, eventually breaking the warp 10 barrier, and traveled at infinite velocity across the universe. The shuttle was later used by the experiment's pilot, Tom Paris in order to cause Kathryn Janeway to experience the same transformation that he had been. After this, the technology was not used to break the warp 10 barrier by the crew of Voyager ever again, while the shuttle itself remained in service. (VOY: "Threshold")
The shuttle was briefly lost in an interfold layer, a region between space and subspace in 2373. (VOY: "Real Life")
The shuttle was used in 2374 during an attempt to recover Voyager's warp core; but it was soon destroyed by the Caatati. (VOY: "Day of Honor")
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