Wave Motion Gun Undulation Gun

The "trump card" of the Yamato, the Dimensional Wave Motion Explosive Compression Emitter, or Wave Motion Gun for short, functions by connecting the Wave Motion Engine to the enormous firing gate at the ship's bow, enabling the tachyon energy power of the engine to be fired in a stream directly forwards. As of the 2009 movie, it has six reactors, and it can fire six shots instead of one large one. However, when combined to fire a single shot, it may rip the hull apart. Enormously powerful, it can vaporise a fleet of enemy ships with one shot; however, it takes a brief but critical period to charge before firing. It used to require all non-essential power systems be deactivated, but now it only leaves the ship unable to warp a short time after firing (around 20 minutes, as indicated in the live-action movie). The recoil absorption mechanism can be manually deactivated with a lever; this was used to save the ship on one occasion.

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