A heavy load sky air crane helicopter, one of the world’s largest commercially available helicopters, lifted 15,000 pounds of air conditioning equipment into place at Harrah’s Cherokee Casino and Hotel this week.

The RTU-6 Semco rooftop air handler was installed as part of the casino’s $633 million expansion plan. The Sikorsky helicopter, which can lift up to 25,000 pounds, carried three separate pieces of the equipment to the roof. The air conditioners are chilled with water units with heat recover wheels and will condition all outside air to decrease smoke within the property.