In 1949 the plant produced the first dragline excavator. Next, large machines, such as dragline excavators or bucket wheel excavators, extract the mineral. An Italian company, Fiorentini, produced dragline excavators from 1919 licensed by Bucyrus. Extraction is done by the dragline, truck and shovel method. Bucyrus' largest dragline was Big Muskie built for the Ohio Coal Company in 1969. A shovel, clamshell, dragline, and drilling equipment could also be used. Their "Class 14" dragline was introduced in 1911 as the first crawler mounted dragline. The energy density of dragline spider silk is roughly . Its largest dragline was the 8950 sold to Amax Coal Company in 1973. A schematic of a large dragline bucket system is shown below. The Park was made on reclaimed land dug by the dragline Big Muskie. Most silks, in particular dragline silk, have exceptional mechanical properties. When close enough, the spider pauses to attach a dragline, then springs onto the prey. The soundtrack features music by a band named Dragline. The first dragline using the new mechanism was the 3-W available in 1926.