Huolongchushui (simplified Chinese: 火龙出水; traditional Chinese: 火龍出水; pinyin: huǒlóngchūshuǐ; lit. 'fire dragon out of water') were the earliest form of multistage rockets used in post-classical China. The name of the weapon was used to strike fear into enemy troops. If the enemy was out of range of the rocket itself, the fire dragon fired a magazine of three rocket-driven arrows in the mouth of the projectile. It was one of the world's earliest multistage rockets. The weapon was fired at enemy ships in naval battles.