Thr Triskelian UHB (UnderHand Boomerang) takes a special "underhand" or "hiking" throw. Write to Kendall for instructions. The "far-forward" airfoil causes the boomerang to precess upside down. (Imagine standing on your head throw this boomerang). Range is reported to be from 25-45m. I have had 30-35m fligths.
