The Sky Crane helicopter was once operated in good numbers by the U.S. Army and Army National Guard (now retired). In civilian hands the Sky Crane is exceedingly rare. Most are used for heavy lifting or firefighting. Erickson Air-Crane now owns the right to manufacture these large helicopters. They were initially developed by Sikorsky.
Shooting from a helicopter in Alaska this video shows some of the work of the skycrane. The landscape is breath taking.
Watch the Los Angeles Fire Department Sky Crane Tanker Fire Helicopters refilling in the Verdugo mountains while fighting the 2009 La Canada fire.
This next video features an Erickson Sky-Crane Cockpit tour at Rocky Mountain Regional Airport.
This video features a Sky Crane filling with water. The water mist is impressive!