Liquid fuel rockets are a type of rocket propulsion system that uses liquid propellants to generate thrust. These rockets typically consist of a fuel and an oxidizer, which are stored in separate tanks and mixed in a combustion chamber. When ignited, the chemical reaction produces hot gases that are expelled through a nozzle, propelling the rocket upward. One of the main advantages of liquid fuel rockets is their ability to be throttled, allowing for precise control of thrust during flight. Notable examples of liquid fuel rockets include the Saturn V, which was used in the Apollo missions, and the SpaceX Falcon 9, known for its reusability.