Bell has received FAA type certification authorization to increase the performance information service ceiling of its Model 505 light single to a density altitude of 22,500 feet. Bell recently demonstrated the high-altitude capabilities of the 505 Jet Ranger X during flight testing in Nepal, performing various takeoffs and landings at density altitudes between 18,000 and 18,500 feet, as well as conducting evaluations of landings with the loss of hydraulic boost.