A Derrick Crane, also known as a Monkey Hoist, is a type of crane used in construction and industrial settings. It typically consists of a mast, boom, and winch used to lift heavy loads. The mast is a vertical column that supports the boom, which is a horizontal arm used to extend the reach of the crane. The winch is used to raise and lower the load, and it can be powered by electricity, diesel, or other means. The crane is typically mounted on a stable base, such as a truck or trailer, which allows for mobility and versatility. A Derrick Crane can be used for a variety of tasks, including moving materials, installing equipment, and performing maintenance tasks.