What is a Derrick crane?

A Derrick crane is a type of lifting device used primarily in construction and industrial applications. It features a tall, vertical mast with a swinging arm (or boom) that can lift and lower heavy loads. Typically used in situations where space is limited, such as on rooftops or in narrow areas, Derrick cranes are often employed for tasks like hoisting materials and equipment. They are known for their stability and ability to handle heavy weights, making them a valuable tool in various projects.