The winches used for highline and spanwire are practically identical, with only minor differences related to use of 1-inch (highline) or 7/8-inch (spanwire) wire rope. The winch is designed and tested to withstand a static load of twice the rated load and to operate at low speed with a dynamic overload of 150% of the rated load. The winch also has a clutch that slips at 150% of the rated line tension to protect the winch and associated equipment from severe load spikes. The winch has a capacity for 900 feet of wire rope and is driven by a 120 HP electric motor, with a rated line tension of 19,500 pounds for highline and 15,500 pounds for spanwire, at a rated line speed of 240 feet per minute.