AS-350 American Eurocopter DHSDHS AS350 helicopter model. The AS350 AStar is a single engine workhorse with the best performance in its category. Built and certified in the United States, this cost effective helicopter accommodates five to six passengers in all forward facing seats. High performance, enhanced maneuverability and reduced pilot workload make American Eurocopter's AS350 the preferred rotary wing aircraft for a growing number of U. S. civilian users, air medical