How heavy is the rocket's engine?

The weight of a rocket engine varies significantly depending on the type and design. For example, a small rocket engine may weigh just a few hundred pounds, while larger engines, like those used in the Space Shuttle, can weigh several tons. The F-1 engine used in the Saturn V rocket weighed about 18,500 pounds (8,400 kg). Ultimately, the engine's weight is a crucial factor in the overall design and performance of the rocket.