Yoyodyne Propulsion Systems is a fictional aerospace company featured in the works of author Thomas Pynchon. It is known for its advanced propulsion technologies and innovative designs, often associated with themes of conspiracy and corporate intrigue. The company plays a significant role in Pynchon's novel, contributing to the narrative's exploration of technology and society. In the story, Yoyodyne is depicted as a cutting-edge firm involved in the development of experimental aircraft and propulsion systems. Its name has become a cultural reference point, symbolizing the intersection of science fiction and real-world technological advancements.