The average elevation of the Tibetan plateau is more than 5,000 meters (16,400 ft.). Most big helicopters do not fly that high, but the one that Avic proposes to build in partnership with Russian Helicopters would, greatly improving the value of the aircraft in its main market, China. In the concept prepared by Avic rotary-wing unit Avicopter, the Advanced Heavy Lifter (AHL) would have a service ceiling of 5,700 meters combined with a gross weight of 38.2 metric tons (84,200 lb.)