trike
n.— «Many residents of the town looked upwards on Easter Sunday morning to see eight small triangles making their way around the perimeter of the town at varying heights.…The flying machines are commonly called trikes, but the correct name for them is weightshift microlights.» —“Those magnificent men” Grenfrell Record (New South Wales, Australia) Apr. 26, 2006. (source: Double-Tongued Dictionary)