You see one about a meter across , 40 odd inch , in old money - and question if a head would be the right place to catch it .
Theyll break a arm or leg , or stop a Kangaroo . Which takes a bit of doing .
The Airfoils got high center of pressure and center of lift capeability , high subsonic .
Descibed as the most mechnically simple aerodynamically sophisticated contrivance of mankind .
http://adl.stanford.edu/e298/E298_-_Seminar_in_Fluid_Mechanics_files/AIAA.2012-2650.AerodynamicsLecture2012.update.pdfThere was a British society for the promotion and avoidance of boomerangs .

Should be a thumb notch and lanched forearm near vertical between thumb and first finger , and itll do all the work , if its a true stone groound bush boomerang .

A Woomera ( spear thrower ) and rock would be a match for a F 14 at 100 ft , head on . With those Intakes . Theyll toss a spear 150 yards .
Were quite a few natives in the ANZACS , and a fighter pilot .

Len Waters .The foot sloggers in the N.T. wouldntve survived without their guides .
