Yoyodyne pulse fusion

Yoyodyne pulse fusion, or YPS pulse fusion, was a type of warp drive propulsion system and drive type for starships that used nuclear fusion reactors. 
The Yoyodyne Propulsion Systems propulsion technology was utilized in starships in the early-2120s and allowed them to serve as early Earth colony ships. (, production art)
The propulsion system was also used in the late-23rd century on starships utilized by El-Aurians. The YPS pulse fusion propulsion system allowed the transports to travel at a maximum warp speed of warp factor 4. ( production art) 
== Background information ==
Based on , the DY-500 pulse fusion drive was presumably limited by the warp 2 barrier, as that speed was first surpassed in 2143 according to the episode.
According to the , the use of the term "Yoyodyne" is an in-joke reference to the 1984 cult classic science fiction film The Adventures of Buckaroo Banzai Across the Eighth Dimension!. The film in turn took the name from 's novels and . 
Category:Propulsion technology