Try....Souix,Commanche, Cheyenne, Choctaw, Chinook, Osage, Tarhe, Mojave, Apache, and a host of other American Indian Tribal names for US Army helicopters
Following the lead of our American cousins, there was a move by the Brits to name their aircraft after famous Indians.
Hence, the WAH-64 was to be known as the Westland Patel!