Egui-class submarine

The Egui-class submarine, also known as the Project 109 class was Songguo's first type of ballistic missile submarine, carrying three JC-1 SLBMs. It was a diesel-electric model, and most foreign analysts agree that much of the technology for the submarine's engine systems and batteries (which allowed it to stay submerged for a fairly long time) were stolen from Asteria and Kaxakh. The submarines are 371 feet long, 32 feet wide, and had a draft of 25 feet, going at a speed of about 17 knots on the surface and 12 knots submerged. A second variant of Egui was also produced later, known as the "Super Egui". These boats were about twenty feet longer, five feet wider, and drew three more feet of water. In reality, the "Super Egui" class bears little resemblence in design to its predecessor except in hull shape, as they are nuclear-powered and can carry an additional JC-1.

Four boats of this class are known to have suffered accidents, three of them resulting in the destruction of the boats in question. It is suspected that others may also have suffered various mishaps as well.

There are forty-one Egui-class submarines still in active service in the Songhua seaborne nuclear arsenal, and twenty-two Super Egui-class boats are also in service. They serve alongside the more advanced Jingang-class submarine, which now carries the bulk of the Federal Union's seaborne nuclear arsenal.