Sikorsky S-64 Skycrane helicopter, also known as an Erickson S-64 Aircrane, in the process of constructing an electrical transmission tower. These heavy-lift helicopters are specifically designed for tasks that require lifting and placing large, heavy objects in difficult-to-access locations. The S-64 Skycrane is a twin-engine heavy-lift helicopter, which is the civil version of the U.S. Army's CH-54 Tarhe. Erickson Incorporated manufactures and operates the S-64 Aircrane, which is the current p