Multispectral subspace engine design was a course taught at Starfleet Academy. In 2372, three officers of the USS Voyager, Ensign Harry Kim, along with Lieutenants Tom Paris and B'Elanna Torres attempted to break the transwarp threshold by running simulations of a shuttlecraft in the ship's holodeck. Ultimately, the test failed when the nacelles were ripped off the shuttle when it accelerated to warp 10. While the three attempted to solve the problem in the mess hall, Neelix, Voyager's morale officer, attempted to help. Paris asked him if he knew anything about quantum warp theory or multispectral subspace engine design. Neelix, however, knew nothing about them. (VOY: "Threshold")